TS 10th Class Biology Bits 5th Lesson Coordination

These TS 10th Class Biology Bits with Answers 5th Lesson Coordination will help students to enhance their time management skills.

TS 10th Class Biology Bits 5th Lesson Coordination

Choose the correct answer.

Question 1.
Identify the diagram ……….

A) Algae
B) Neuron
C) Blood cell
D) Mitochandria
Answer:
B) Neuron

Question 2.
Which plant hormone is responsible for closing of stomata?
A) Abscisic acid
B) Auxin
C) Cytokinin
D) Ethylene
Answer:
A) Abscisic acid

Question 3.
Find the missing part in the diagram.

A) Nissi’s granules
B) Nucleus
C) Synapse
D) Dendrites
Answer:
B) Nucleus

Question 4.
The hormone released during hunger is ……………
A) Adrenalin
B) Thyroxin
C) Leptin
D) Ghrelin
Answer:
D) Ghrelin

Question 5.
Name the type, of response, shown by the plant in the picture due to. contact or touch, is called …….

A) Hydrotropism
B) Thigmotropism
C) Phototiopism
D) Geotropism
Answer:
B) Thigmotropism

Question 6.
Find the correct statement.
A) Cerebrum is the centre for muscular activities.
B) Diencephalon controls thinking, memory and reasoning.
C) Cerebellum maintains posture, equilibrium and muscle tone.
D) Midbrain coordinates reflexes like swallowing, coughing, sneezing and vomiting.
Answer:
C) Cerebellum maintains posture, equilibrium and muscle tone.

Question 7.
The hormone responsible for secondary sexual characters in female is……..
A) Adrenaline
B) Testosterone
C) Vasopressin
D) Estrogen
Answer:
D) Estrogen

Question 8.
The phytohormone that promotes cell division ……………….
A) Uibberllins
B) Ethylene
C) Auxin
D) Cytokinins
Answer:
D) Cytokinins

Question 9.
Travelling of pollen tube towards ovum represents …………..
A) Chemotropism
B) Phototropism
C) Geotropism
D) Thigmotropism
Answer:
D) Thigmotropism

Question 10.
Observe the following given figure and Identify the endocrine gland present.

A) Liver
B) Pancreas
C) Adrenal gland
D) Thyroid gland
Answer:
B) Pancreas

Question 11.
Match the following and
i) Cerebrum — a) Emotions and muscular activity.
ii) Cerebellum — b) Thinking, Memory and Reasoning.
iii)Medulla Oblongata — c) Equilibrium and voluntary movements.
iv) Diencephalon — d) Centre for cardiac and respiratory activities.
A) i – d, ii – a, iii-c, iv – b
B) i – b, ii – c, iii – d, iv – a
C) i – b, ii – d, iii – c, iv – a
D) i – b, ii – c, iii – a, iv – d
Answer:

Question 12.
The part of the brain that lias glial cell ……………
A) Pia matter
B) Dura matter
C) Arachnoid membrane
D) Grey matter
Answer:
C) Arachnoid membrane

Question 13.
The total number of pairs of peripllera nerves in man are [ ]
A) 41
B) 42
C) 43
D) 44
Answer:
C) 43

Question 14.
What is the consequence of high concentration of auxins? [ ]
A) Stimulates stem and root growth
B) Inhibits stem root growth
C) Stimulates stem growth and inhibit root growth
D) Inhibit stern growth and stimulate root growth
Answer:
C) Stimulates stem growth and inhibit root growth

Question 15.
The part of neuron which is generally called as nerve fibre is [ ]
A) Dendrites
B) Myelin sheath
C) Axon
D) Cyton
Answer:
D) Cyton

Question 16.
Afferent nerves are also called [ ]
A) Sensory nerve
B) Motor nerves
C) Mixed nerves
D) None of the above
Answer:
A) Sensory nerve

Question 17.
Nerves that carry impulses from sense organ to brain or spinal cord are [ ]
A) Dendrites
B) Motor nerves
C) Efferent nerves
D) Afferent nerves
Answer:
D) Afferent nerves

Question 18.
Gaps of the axon are called [ ]
A) pits
B) pores
C) nodes
D) nodes of ranvier
Answer:
D) nodes of ranvier

Question 19.
Nerves are bundles of several [ ]
A) Axons
B) Cytons
C) Dendrites
D) None
Answer:
A) Axons

Question 20.
Master gland in the body [ ]
A) Adrenal
B) Thyroid
C) Parathyroid
D) Pituitary
Answer:
D) Pituitary

Question 21.
A gland that is close to trachea [ ]
A) Pancreas
B) Liver
C) Thyroid
D) Adrenal
Answer:
C) Thyroid

Question 22.
Islets of Langerhans are present in [   ]
A) Kidney
B) Liver
C) Pancreas
D) Trachea
Answer:
C) Pancreas

Question 23.
Chemical coordination in the body is brought out by [ ]
A) Blood
B) Lymph
C) Enzymes
D) Hormones
Answer:
D) Hormones

Question 24.
Endocrine gland that is present in head is [ ]
A) Adrenal
B) Thyroid
C) Pituitary
D) Paral hyroid
Answer:
C) Pituitary

Question 25.
What membrane covers the never ?
A) Plasmalemma
B) Nerolemma
C) White matter
D) Grey matter
Answer:
B) Nerolemma

Question 26.
Mixed gland which acts as exocrine and endocrine gland [ ]
A) Pituitary gland
B) Pancreas
C) Parathyroid
D) Adrenal cortex
Answer:
B) Pancreas

Question 27.
If we observe potted explant growing horizontally on ground for some days, what will be the correct diagram given below? [ ]

Answer:
A.

Question 28.
Which part of the nervous system control involuntary actions? [ ]
A) Medulla oblongata
B) Cerebellum
C) Hypothalamus
D) Spinal cord
Answer:
D) Spinal cord

Question 29.
Voluntary actions are controlled by [ ]
A) Cerebrum
B) Cerebellum
C) Spinal cord
D) Medulla oblongata
Answer:
B) Cerebellum

Question 30.
Cranial nerves are [ ]
A) 10 pairs
B) 15 pairs
C) 12 pairs
D) 31 pairs
Answer:
C) 12 pairs

Question 31.
The approximate weight of brain in adult man is [ ]
A) 1400g
B) 1450g
C) 1500g
D) 1550g
Answer:
A) 1400g

Question 32.
Which nerve carries impulses away from the central nervous system ?
A) Sensory
B) Motor
C) Afferent
D) Association
Answer:
B) Motor

Question 33.
Which of the following is not a plant hormone?
A) Auxin
B) Ascorbic acid
C) Cytokinin
D) Ethylene
Answer:
B) Ascorbic acid

Question 34.
The hormone responsible for phototropism in plants is [ ]
A) Cytokinin
B) Gibberellin
C) Auxin
D) Abscisic acid
Answer:
C) Auxin

Question 35.
The following plant shows response to phototropism [ ]
A) Mango
B) Sunflower
C) Eucalyptus
D) Cashew nut
Answer:
B) Sunflower

Question 36.
The plant part which exhibit negative geotropism is [ ]
A) Stem
B) Root
C) Leaf
D) flower
Answer:
A) Stem

Question 37.
The part of the plant which is negatively phototropic and positively geotropic [ ]
A) Stem
B) Root
C) Leaf
D) flower
Answer:
B) Root

Question 38.
Closing of stomata is the function of [ ]
A) Abscisic acid
B) Auxin
C) Gibberellin
D) Ethylene
Answer:
A) Abscisic acid

Question 39.
The plant hormone that promote cell division is [ ]
A) Auxin
B) Gibberellin
C) Cytokinin
D) Abscisic acid
Answer:
C) Cytokinin

Question 40.
Elongation of stem is due to the action of [ ]
A) Abscisic acid
B) Auxin
C) Lthylene
D) Gibberellin
Answer:
D) Gibberellin

Question 41.
Ethylene is responsible for [ ]
A) Opening of stomata
B) Ripening of fruits
C) Breaking seed dormancy
D) Stimulation of flowering
Answer:
B) Ripening of fruits

Question 42.
Which of the following phytohormone is not associated with the promotion of growth in plants ?
A) Auxin
B) Abscisic acid
C) Gibberellin
D) Cytokinin
Answer:
B) Abscisic acid

Question 43.
Abscisic acid is responsible for [ ]
A) Cell elongation
B) Promote cell division
C) Promotes fall of mature leaves and fruits
D) Elongation of stems
Answer:
C) Promotes fall of mature leaves and fruits

Question 44.
Hydrotropism means [ ]
A) It is the movement of root towards water
B) Movement of stem towards water
C) Bending of stem towards light
D) Growing of root into the soil
Answer:
B) Movement of stem towards water

Question 45.
The growth of pollen tube toward the ovule caused by a sugary substance as stimulus is an example of [ ]
A) Geotropism
B) Hydrotropism
C) Ihototropism
D) Chemotropism
Answer:
D) Chemotropism

Question 46.
Growing of plant tendril towards support and find around is [ ]
A) Phototropism
B) Thlgmotroplsm
C) Chemotropism
D) Geotropism
Answer:
B) Thlgmotroplsm

Question 47.
Folding up of leaves of mimosa pudica when we touch it. This type of response is called [ ]
A) Thigmonasty
B) Photonasty
C) Phototropism
D) Negatively phototropic
Answer:
A) Thigmonasty

Question 48.
The gland which acts as both endocrine and exocrine gland is [ ]
A) Thyroid
B) Parathyroid
C) Pancreas
D) liver
Answer:
C) Pancreas

Question 49.
The number of pairs of nerves arise from spinal cord are [ ]
A) 31
B) 43
C) 12
D) 33
Answer:
A) 31

Question 50.
Iodine is necessary for the secretion of this hormone [   ]
A) Adrenalin
B) Thyroxine
C) Paratharmone
D) Somatotrophin
Answer:
B) Thyroxine

Question 51.
The gland attached to kidney is [   ]
A) Thyroid
B) Hypothalamus
C) Pituitary
D) Adrenal
Answer:
D) Adrenal

Question 52.
Menstrual cycle in females is under the control of hormone [   ]
A) Progesteron
B) Estrogen
C) Thyroxine
D) Adrenalin
Answer:
B) Estrogen

Question 53.
Activity of ovary and testis is promoted by this hormone [   ]
A) Somatotrophin
B) Thyrotrophin
C) Gonadotrophin
D) Leutinising hormone
Answer:
C) Gonadotrophin

Question 54.
This hormone stimulates the function of Adrenal gland [   ]
A) Leutinising hormone
B) Adrenocorticotrophic hormone
C) Thyrotrophin
D) Gonadotrophin
Answer:
B) Adrenocorticotrophic hormone

Question 55.
The hormone responsible for development of secondary sexual characters in males is [    ]
A) Progesteron
B) Estrogen
C) Testosteron
D) Insulin
Answer:
C) Testosteron

Question 56.
Doctors give insulin injections to patients suffering from [   ]
A) Dwarfism
B) Diabetes millitus
C) Diabetes insipidus
D) Tetany
Answer:
B) Diabetes millitus

Question 57.
All the voluntary actions of our body are controlled by [  ]
A) Cerebrum
B) Cerebellum
C) Pons Varolii
D) Diencephalon
Answer:
A) Cerebrum

Question 58.
Involuntary actions such as heart beat, respiration, blood pressure are controlled by [ ]
A) Pons Varolii
B) Hypothalamus
C) Medulla oblongata
D) Cerebellum
Answer:
C) Medulla oblongata

Question 59.
Electrical impulse travels in a euron from [ ]
A) Axon → Dendrite → Axon end → Cell body
B) Cell body → Axon → Dendrite Axon end
C) Dendrite → Cell body → Axon → Axon end
D) Axon end → Axon → Cell body → Dendrite
Answer:
C) Dendrite → Cell body → Axon → Axon end

Question 60.
In neuron, the conversion of electrical signal to a chemical signal occurs at [ ]
A) Dendrite end
B) Axon end
C) Cell body
D) Nodes of Ranvier
Answer:
B) Axon end

Question 61.
The use of iodised salt is recummended to prevent [ ]
A) Dwarfism
B) Diarrhoea
C) Goitre
D) Cretenism
Answer:
C) Goitre

Question 62.
Identify the master gland in human beings. [   ]
A) Pituitary
B) Pineal
C) Hypothalamus
D) Thyroid
Answer:
A) Pituitary

Question 63.
Feedback mechanism helps in
A) Regulating the amount of hormones released
B) Decreasing the amount of hormones released
C) Increasing the amount of hormones released
D) All the above
Answer:
A) Regulating the amount of hormones released

Question 64.
The scientific name of ‘touch me not’ plant [ ]
A) Pongamia glabra
B) Pithacalobiuni dulsi
C) Muraya koenigi
D) Mimosa pudica
Answer:
D) Mimosa pudica

Question 65.
The term hormone was coined by [    ]
A) Starling
B) Banting
C) Best
D) Macleod
Answer:
A) Starling

Question 66.
In Latin insula means [ ]
A) Peninsula
B) Continent
C) Island
D) Plains
Answer:
C) Island

Question 67.
Enteric nervous system is prevented in this following systems [ ]
A) Respiratory system
B) Circulatory system
C) Transport system
D) Digestive system
Answer:
A) Respiratory system

Question 68.
Insulin secreting Islets in pancreas were discovered by [ ]
A) Langerhans
B) Starling
C) Bell
D) Francois Magendie
Answer:
D) Francois Magendie

Question 69.
Who recorded the survival frogs whose brain had been destroyed?
A) Leonardo Da Vinci and Stephen Hales
B) Bell and Francois Maginde
C) Charles Darwin and Francis Darwin
D) Banting. Best. Macleod
Answer:
A) Leonardo Da Vinci and Stephen Hales

Question 70.
It serves as a shock absorbing medium and protest the brain against shocks/jerks [ ]
A) Cerebrospinal fluid
B) Meninges
C) Cranium
D) All the above
Answer:
C) Cranium

Question 71.
The largest region of the brain [ ]
A) Cerebrum
B) Cerebellum
C) Medulla oblongata
D) Pons varolii
Answer:
C) Medulla oblongata

Question 72.
A point of contact between two neurons is called [ ]
A) Nerve ending
B) Dendrite
C) Synapse
D) Axon
Answer:
A) Nerve ending

Question 73.
Auxin is responsible for [ ]
A) Cell elongation
B) Differentiation of shoots. roots
C) Both A and B
D) Elongation of stems
Answer:
B) Differentiation of shoots. roots

Question 74.
Thyroxine is responsible for [ ]
A) General growth rate and metabolic activity
B Growth of bones and testis
C Growth of the uterus and skeleton of the pelvis
D) Growth of testis and uterus
Answer:
A) General growth rate and metabolic activity

Question 75.
A gardener wants large dahlias he should use the hormone along with nutrients [ ]
A) Auxin
B) Gibberellin
C) Cytokinin
D) Ethylene
Answer:
C) Cytokinin

Question 76.
In a Dwarf plant the branches have to be thickened one would use the hormone [ ]
A) Gibberellin
B) Auxin
C) Cytokinin
D) Abscisic acid
Answer:
B) Auxin

Question 77.
This hormone helps in storing seeds for a long time [ ]
A) Auxin
B) Gibberellin
C) Abscisic acid
D) Ethylene
Answer:
C) Abscisic acid

Question 78.
The hormone that can be used after cutting the apex or tip of plants so that there are several lateral buds develops [ ]
A) Auxin
B) Gibberellin
C) Cytokinin
D) Ethylene
Answer:
A) Auxin

Question 79.
The part of the brain that helps in solving puzzles is [ ]
A) Cerebrum
B) Cerebellum
C) Diencephalon
D) Pons varolil
Answer:
B) Cerebellum

Question 80.
In a nerve cell nucleus is present in [ ]
A) Cell body
B) Axon
C) Dendrite
D) Nerve ending
Answer:
B) Axon

Question 81.
The existence of the knee jerk was first noted in [ ]
A) 1870
B) 1875
C) 1975
D) 1856
Answer:
C) 1975

Question 82.
Central nervous system includes [ ]
A) Brain, peripheral parts of spinal cord
B) Brain, spinal cord
C) Dorsal root ganglion, ventral root ganglion
D) Cerebrum, cerebellum
Answer:
C) Dorsal root ganglion, ventral root ganglion

Question 83.
Brain is covered by three layered [ ]
A) Pleura
B) Medulla
C) Meninges
D) White matter
Answer:
A) Pleura

Question 84.
Cerebellum maintains [ ]
A) Posture, equilibrium, heat
B) Posture, musleton, pressure
C) Posture, equilibrium and muscle tone
D) Heat, pressure and temperature
Answer:
C) Posture, equilibrium and muscle tone

Question 85.
The human body contains ductless glands called [ ]
A) Endocrine glands
B) Exocrine glands
C) Mixed glands
D) All the above
Answer:
D) All the above

Question 86.
The fight and flight hormone is [ ]
A) Thyroxine
B) Paratharmone
C) Adrenaline
D) Insulin
Answer:
C) Adrenaline

Question 87.
Medulla oblongata regulate activities like [ ]
A) Heart beat
B) Respiratory
C) Vasomotor
D) All the above
Answer:
B) Respiratory

Question 88.
Pad like swellings near the leaf base of mimosa pudica, which are sensitive to touch are [ ]
A) Malvini
B) Tulnivi
C) Pulvini
D) Kalivini
Answer:
B) Tulnivi

Question 89.
Growth hormone is secreted by [  ]
A) Peneal gland
B) Pituitary
C) Thyroid
D) Progesteron
Answer:
B) Pituitary

Question 90.
Throid gland is present near trachea in [ ]
A) Head
B) Neck
C) Liver
D) Spinal cord
Answer:
A) Head

Question 91.
In disease like polio, neurons get destroyed by virus are [ ]
A) Sensory
B) Motor
C) Association
D) Mixed neurons
Answer:
A) Sensory

Question 92.
In this part of neuron nissal granules are present [ ]
A) Cell body
B) Dendrite
C) Axon
D) Myelin sheath
Answer:
C) Axon

Question 93.
Glial cells supply these to neurons [ ]
A) Nutrients
B) Oxygen
C) Carbondioxcle
D) Proteins
Answer:
A) Nutrients

Question 94.
Brain in man is present in a bony case called [ ]
A) Skull
B) Ribcage
C) Cranium
D) None of the above
Answer:
A) Skull

Question 95.
Proposal of plant growth substances was first put forward by [ ]
A) Charles Darwin
B) Francis Darwin
C) LW Went
D) Haeckel
Answer:
D) Haeckel

Question 96.
Root initiation is promoted by [  ]
A Cytokinin
B) Gibberellin
C) Auxin
D) Abscisic acid
Answer:
A Cytokinin

Question 97.
Abscission layers separate these parts from the plant [ ]
A) Leaves
B) Fruits, Flowers
C) Leaves, Fruits
D) Leaves, Flowers
Answer:
C) Leaves, Fruits

Question 98.
Phytolormones are present in [ ]
A) Animals
B) Plants
C) Sponges
D) All of the above
Answer:
B) Plants

Question 99.
Response of a plant to light is called [ ]
A) Phototropism
B) Geotropism
C) Chemotropism
D) Thigmotropism
Answer:
A) Phototropism

Question 100.
Plant root growing towards water in the soil is called [ ]
A) Geotropism
B) Phototropism
C) Hydrotropism
D) Chemotropism
Answer:
C) Hydrotropism

Question 101.
The movement of plant parts towards chemicals is called [ ]
A) Chemotropism
B) Thigmotropism
C) Nastic movement
D) Geotropism
Answer:
A) Chemotropism

Question 102.
Greek word ‘Auxin’ means [ ]
A) To decrease
B) To increase
C) To grow
D) To change
Answer:
B) To increase

Question 103.
Peripheral nervous system comprises of nerves arising from [ ]
A) Brain only
B) Spinal cord only
C) Brain and Spinal cord
D) Dorsal root ganglion
Answer:
C) Brain and Spinal cord

Question 104.
Reflex action is an [ ]
A) Automatic
B) Involuntary
C) Instantaneous
D) All the above
Answer:
D) All the above

Question 105.
Cell division is stimulated by [ ]
A) Gibberellin and cytokinins
B) Auxins and Abscisic acid
C) Gibberellins and Auxins
D) Auxins and Cytokinins
Answer:
D) Auxins and Cytokinins

Question 106.
The activities of the internal organs are controlled by the [ ]
A) Central nervous system
B) Peripheral nervous system
C) Autonomous nervous system
D) None of the above
Answer:
A) Central nervous system

Question 107.
Tropic movements are [ ]
A) In response to light
B) In response to gravity
C) Unidirectional
D) Non-directional
Answer:
C) Unidirectional

Question 108.
Growth of stem is controlled by [ ]
A) Gibberellin
B) Auxin
C) Cytokinin
D) Abscisic acid
Answer:
A) Gibberellin

Question 109.
The spinal cord originates from [ ]
A) Cerebrum
B) Cerebellum
C) Medulla
D) Pons
Answer:
C) Medulla

Question 110.
Which of the following are often called glands of emergency ? [ ]
A) Thyroid
B) Pituitary
C) Adrenal
D) Pancreas
Answer:
C) Adrenal

Question 111.
Brain is protected by a /the [ ]
A) cranium
B) meninges
C) options (A) and (B)
D) cartilage
Answer:
C) options (A) and (B)

Question 112.
Plants with weak stems like in cucumber and bitter gourd show …. [ ]
A) Phototropism
B) Thigmotropism
C) Geotropism
D) Chemotropism
Answer:
B) Thigmotropism

Question 113.
The organ protected in a bony case called cranium is [ ]
A) Brain
B) Spinal cord
C) Heart
D) Lungs
Answer:
A) Brain

Question 114.
The root of the spinal cord that gets signals from afferent nerves is [ ]
A) Ventral root
B) Dorsal root
C) Both A & B
D) None of the above
Answer:
B) Dorsal root

Question 115.
The system of neurons present in our digestive track is [ ]
A) Peripheral nervous system
B) Central nervous system
C) Enteric nervous system
D) None of the above
Answer:
C) Enteric nervous system

Question 116.
The nervous system formed by the chain of ganglia on either side of vertebral column is [ ]
A) Sympathetic nervous system
B) Parasympathetic nervous system
C) Enteric nervous system
D) Peripheral nervous system
Answer:
A) Sympathetic nervous system

Question 117.
Kicking of football, lifting bucket of water are the examples of [ ]
A) Voluntary actions
B) Involuntary actions
C) Reflex actions
D) All the above
Answer:
A) Voluntary actions

Question 118.
Nerve impulse across the synapse is [  ]
A) Sensory nerves
B) Motor nerves
C) Neurotransmitters
D) All the above
Answer:
C) Neurotransmitters

Question 119.
The synapses are mainly found on the [   ]
A) Brain
B) Spinal cord
C) Around the spinal cord
D) All the above
Answer:
D) All the above

Question 120.
Afferent nerves carry messages towards [ ]
A) Central nervous system
B) Effectors
C) Peripheral nervous system
D) None of the above
Answer:
A) Central nervous system

Question 121.
A single pathway going up to the spinal cord from detectors and returning to effectors is [ ]
A) reflex action
B) reflex arc
C) synapse
D) response
Answer:
B) reflex arc

Question 121.
Diencephaion belongs to the following division of the brain [ ]
A) Hind brain
B) Mid brain
C) Fore brain
D) Cerebrum
Answer:
C) Fore brain

Question 122.
The part of the brain that responds to emotion and speech is [ ]
A) Cerebrum
B) Cerebellum
C) Medulla oblongata
D) All the above
Answer:
A) Cerebrum

Question 123.
cardiac, respiratory activities are done by [ ]
A) Diencephalon
B) Mid brain
C) Fore brain
D) Medulla oblongata
Answer:
D) Medulla oblongata

Question 124.
Naveen got anger. The hormone responsible for his anger is [ ]
A) Thyroxine
B) Adrenaline
C) Somatotrophin
D) None of the above
Answer:
B) Adrenaline

Question 125.
Pranav touched Mimosa pudica leaves. They are folded by his touch; the reason is [ ]
A) Phototropism
B) Geotropism
C) Chemotropism
D) Thigmotropism
Answer:
D) Thigmotropism

Question 126.
The plant kept near the window bends towards sunlight. Bending of stem towards light is due to the hormone [ ]
A) Gibberellin
B) Cytokinin
C) Auxins
D) Ethylene
Answer:
C) Auxins

Question 127.
This experiment with coleoptile tip was done by the scientist [ ]

A) Charles Darwin
B) Francis Darwin
C) F.W. Went
D) None
Answer:
C) F.W. Went

Question 128.
Identify this. [ ]

A) Afferent neuron
B) Efferent neuron
C) Association neuron
D) Brain
Answer:
B) Efferent neuron

Question 129.
This gland is related to Diabetes [ ]
A) Thyroid
B) Adrenal
C) Pancreas
D) Parathyroid
Answer:
C) Pancreas

Question 130.
Pollen grain responds to stimulus as pollen tube grows to reach the ovule for fertilization. This type of response is called [  ]
A) Thigmotropism
B) Phototropism
C) Chemotropism
D) Hydrotropism
Answer:
C) Chemotropism

Question 131.
The correct answer is [ ]
1) Abscisic acid (a ) a) Ripening of fruit
2) Cytokinins (b ) b) Closing of stomata
3) Gibberellins (c ) c) Elongation of stem
A) 1 is correct
B) 3 is correct
C) 2 is correct
D) 1, 2, 3 are correct
Answer:
B) 3 is correct

Question 132.
In the given diagram, ‘x’ denotes [ ]

A) Schwann cells
B) Nodes of ranvier
C) Axon terminal
D) Nissi’s granules
Answer:
D) Nissi’s granules

Question 133.
Can you identify the structure in the above diagram?

A) Sensory neuron
B) Motor neuron
C) Reflex arc
D) Synapse
Answer:
D) Synapse

Question 134.
Can you name the above structure? [ ]

A) Motor neuron
B) Sensory neuron
C) Reflex arc
D) Synapse
Answer:
B) Sensory neuron

Question 135.
Can you identify the structure given above? [ ]

A) Sensory neuron
B) Motor neuron
C) Synapse
D) Reflex arc
Answer:
B) Motor neuron

Question 136.
In the given diagram of brain X denotes [ ]

A) Cerebellum
B) Cerebrum
C) Mid brain
D) Pons varolii
Answer:
B) Cerebrum

Question 137.
Can you name the part of the human brain denoted by ‘X’ [ ]

A) Cerebellum
B) Medulla oblongata
C) Pituitary gland
D) Mid brain
Answer:
C) Pituitary gland

Question 138.
Can you identify this nervous system shown in the given diagram? [    ]

A) Central Nervous System (CNS)
B) Autonomous Nervous System (ANS)
C) Peripheral Nervous System (PNS)
D) Reflex arc
Answer:
C) Peripheral Nervous System (PNS)

Question 139.
Can you name this endocrine gland? [     ]

A) Thyroid
B) Pituitary
C) Pancreas
D) Adrenal
Answer:
C) Pancreas

Question 140.
Name this tropic movement shown by the plant. [ ]

A) Phototropism
B) Geotropism
C) Chemotropism
D) Thigmotropism
Answer:
D) Thigmotropism

Question 141.
In the given figure, the plant is bending towards the sunlight. Can you name this type of tropic movement?

A) Geotropism
B) Thigmotropism
C) Chemotropism
D) Phototropism
Answer:
D) Phototropism

Question 142.
What tropic movement do you observe in the given picture. [  ]

A) Phototropism
B) Hydrotropism
C) Geotropism
D) Thigmotropism
Answer:
D) Thigmotropism

Question 143.
This experiment is associated with the discovery of the following. [   ]

A) Gibberellins
B) Cytokinins
C) Abscisic Acid
D) Auxins
Answer:
D) Auxins

Question 144.
This diagram is showing the following. [ ]

A) CNS
B) PNS
C) ANS
D) Reflex Arc
Answer:
D) Reflex Arc

Question 145.

Endocrinc gland	Location
Thyroid Thymus	Neck ?

A) Attached to kidney
B) Floor of brain
C) Scrotal sac
D) Near heart
Answer:
D) Near heart

Question 146.

Phytohormone	Function
Abscisic Acid Cytokinins	Closing of stomata ?

A) Cell elongation
B) Ripening of fruits
C) Breaking of dormancy
D) Prorriote cell division
Answer:
D) Prorriote cell division

Question 147.
Match the following.
List – A —- List-B
1) E.W Went (  ) a) Spin & cord experiments
2) Leonardo davinci ( ) b) Structure of pancreas
3) Paul Langer hans ( ) c) Auxins
A) 1 – c, 2 – b, 3 – a
B) 1 – b, 2 – c, 3 – a
C) 1 – a, 2 – c, 3 – b
D) 1 – c, 2 – a. 3 – b
Answer:
D) 1 – c, 2 – a. 3 – b

Question 148.
In this diagram, X denotes the following.

A) Pituitary gland
B) Thymus gland
C) Pancreas
D) Adrenal glands
Answer:
D) Adrenal glands

Question 149.
Identify the mismatched pair.
1) Cerebrum – Centre for Cardiac and Vascular activities
2) Diencephalon — Reflex centre for muscular activities
3) Cerebellum — Maintains Posture
A) 1,3
B) 2.3
C) 3 only
D) 1 only
Answer:
D) 1 only

Question 150.
Identifytise mismatched pair. [ ]
1) Forebrain — Cerebrum
2) Mid brain — Optic lobes
3) Hind brain — Diencephalon
A) 1, 2
B) 2 only
C) 1,3
D) 3 only
Answer:
D) 3 only

Question 151.
Match the following. [ ]
List-A List-B
1) Nissl’s granules ( ) a) Peripheral Nervous System
2) Charles Bell ( ) b) Autonomous Nervous System
3) Medulla Oblongata ( ) c) Neuron
A) 1 – a, 2 – b, 3 – c
B) 1 – b, 2 – c, 3 – a
C) 1 – c, 2 – b, 3 – a
D) 1 – c, 2 – a, 3 – b
Answer:
D) 1 – c, 2 – a, 3 – b

Question 152.
Germination of seeds : Gibberellins::
Ripening of friuts : ……… ? [ ]
A) Auxins
B) Cytokinins
C) ABA
D) Ethylene
Answer:
D) Ethylene

Question 153.
Islets of Langerhans can be seen in
A) Kidney
B) Liver
C) Gallbladder
D) Pancreas
Answer:
D) Pancreas

Question 154.
Closing of stomata : ABA: :
Opening of stomata:?
A) Auxins
B) Ethylene
C) Gibberellins
D) Cytokinins
Answer:
D) Cytokinins

Question 155.
Identify the mismatched pair.
1) Roots — Positively geotropic
2) Stein — Negatively geotropic
3) Sunflower — Thigmonasty ( )
A) 1,2
B) 1,3
C) 2 only
D) 3 only
Answer:
D) 3 only

Question 156.

Response of the body to hormone	Name of the hormone
1) General growth rate and metabolic activity	Thyroid
2) Increase in heart beat. Rise in blood sugar level, Dialation of coronary artery, etc	?

A) Pituitary
B) Testosteron
C) Thymus
D) Adrenal gland
Answer:
D) Adrenal gland