{"id":60399,"date":"2024-04-18T15:29:08","date_gmt":"2024-04-18T09:59:08","guid":{"rendered":"https:\/\/apboardsolutions.com\/?p=60399"},"modified":"2024-04-18T15:45:15","modified_gmt":"2024-04-18T10:15:15","slug":"ts-10th-class-biology-model-paper-april-2023","status":"publish","type":"post","link":"https:\/\/apboardsolutions.com\/ts-10th-class-biology-model-paper-april-2023\/","title":{"rendered":"TS 10th Class Biology Model Paper April 2023"},"content":{"rendered":"

Students must rely on TS 10th Class Biology Model Papers<\/a> TS 10th Class Biology Model Paper April 2023 to gauge their understanding of exam patterns.<\/p>\n

TS 10th Class Biology Model Paper April 2023<\/h2>\n

Time: 1:30 hours
\nMax. Marks:40<\/p>\n

Instructions:<\/span><\/p>\n

    \n
  1. Read the question paper carefully and understand it.<\/li>\n
  2. Answer the questions under Part – A in the answer sheet provided.<\/li>\n
  3. Part – A contains three sections: sections – i, ii, and iii.<\/li>\n
  4. Part-B Answers should be written in the given brackets and attached to the Part-A answer sheet.<\/li>\n
  5. Write the answers by following the instructions given in the each section.<\/li>\n<\/ol>\n

    Part – A (Marks 30)<\/span>
    \nSection – I (3 x 2 = 6M)<\/span><\/p>\n

    Question 1.
    \nWrite two materials required to conduct an experiment to prove Sunlight is essential for Photosynthesis.
    \nAnswer:
    \nTwo materials required to conduct an experiment to prove Sunlight is essential for Photosynthesis a potted plant and iodine solution.<\/p>\n

    Question 2.
    \nName two fossil fuels that are used in daily life.
    \nAnswer:
    \nTwo fossil fuels that are used in daily life Petroleum and Natural gas.<\/p>\n

    \"TS<\/p>\n

    Question 3.
    \nWhat will happen if there is no mucus in the Oesophagus?
    \nAnswer:
    \nIf there is no mucus in the Oesophagus, it will be difficult for food to slide down into the stomach. The mucus also protects the lining of the esophagus from stomach acids during digestion.<\/p>\n

    Section – II (3 \u00d7 4 = 12 M)<\/span><\/p>\n

    Instructions:<\/span><\/p>\n

      \n
    • This section contains 3 short answer questions.<\/li>\n
    • Answer ALL the questions.<\/li>\n
    • Write the answers in 5 – 6 sentences.<\/li>\n
    • Each question carries 4 marks.<\/li>\n<\/ul>\n

      Question 4.
      \nWrite four differences between arteries and veins.
      \nAnswer:<\/p>\n

        \n
      1. Arteries carry blood away from the heart, while veins carry blood towards the heart.<\/li>\n
      2. The blood in arteries is oxygenated, except for the pulmonary artery. The blood in veins is deoxygenated, except for the pulmonary veins.<\/li>\n
      3. Arteries have thick, muscular walls to withstand pressure, while veins have thinner walls.<\/li>\n
      4. Veins have valves to prevent backflow of blood, while arteries do not.<\/li>\n<\/ol>\n

        Question 5.
        \nName any four secondary metabolites that are used in daily life and write their uses.
        \nAnswer:<\/p>\n

          \n
        1. Caffeine (used as a stimulant in coffee and tea)<\/li>\n
        2. Nicotine (used in tobacco products)<\/li>\n
        3. Morphine (used as a painkiller)<\/li>\n
        4. Quinine (used to treat malaria)<\/li>\n<\/ol>\n

          Question 6.
          \nObserve the following table.<\/p>\n\n\n\n\n\n\n\n
          Vitamin<\/td>\nDeficiency disease<\/td>\nSymptoms<\/td>\n<\/tr>\n
          Thiamin<\/td>\nBeri Beri<\/td>\nvomitings, difficulty in breathing.<\/td>\n<\/tr>\n
          Retinol<\/td>\nEye and skin diseases<\/td>\nNight blindness, Cornea failure, Xerophthalmia.<\/td>\n<\/tr>\n
          Tocopherol<\/td>\nFertility-related disorders<\/td>\nSterility in males, abortions in females.<\/td>\n<\/tr>\n
          Niacin<\/td>\nPellagra<\/td>\nDermatitis, diarrhea, loss of memory.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Answer the following questions based on the given table.
          \ni) Name two water-soluble vitamins from the table.
          \nii) Write two fat-soluble vitamins from the table.
          \niii) Which vitamin from the given table is called vitamin \u2018E\u2019?
          \niv) Write any one deficiency disease caused due to deficiency of vitamin \u2018A\u2019.
          \nAnswer:
          \ni) Two water-soluble vitamins from the table: Thiamin (Vitamin B1) and Niacin (Vitamin B3).
          \nii) Two fat-soluble vitamins from the table: Retinol (Vitamin A) and Tocopherol (Vitamin E).
          \niii) The vitamin from the given table that is called Vitamin E\u2019 is Tocopherol.
          \niv) A deficiency disease caused due Lo deficiency of Vitamin A\u2019 (Retinol) is Night blindness.<\/p>\n

          Section-III (2 x 6 = 12 M)<\/span><\/p>\n

          Instructions:<\/span><\/p>\n

            \n
          • This section contains 3 essay-type questions.<\/li>\n
          • Answer ANY TWO questions.<\/li>\n
          • Write the answer in 8 to 10 sentences.<\/li>\n
          • Each question carries 6 marks.<\/li>\n<\/ul>\n

            Question 7.
            \nExplain the various stages of Mitosis.
            \nAnswer:
            \nMitosis is the process of cell division that ensures the equal distribution of replicated chromosomes to two daughter cells. It consists of several distinct stages, each crucial for the accurate separation of genetic material. The stages of mitosis are as follows:
            \n1. Prophase: Prophase marks the beginning of mitosis. During this stage, the chromatin (a complex of DNA ami proteins) condenses and becomes visible as individual chromosomes. Each chromosome consists of two sister chromatids, connected by a structure called the centromere. The nuclear envelope starts to break down, and the mitotic spindle, composed of microtubule les, begins to form.<\/p>\n

            2. Metaphase: In this stage, the chromosomes align at the cell\u2019s equator, forming a single plane known as the metaphase plate. The spindle fibers attach to the centromeres of each chromosome, ensuring they are correctly positioned for the subsequent separation.<\/p>\n

            3. Anaphase: During anaphase, the centromere holding the sister chromatids together splits, and the spindle fibers shorten. As a result, the sister chromatids are pulled apart towards opposite poles of the cell. Once separated, each chromatid is considered an individual chromosome.<\/p>\n

            4. Telophase: Telophase is the final stage of mitosis. In this stage, the chromosomes reach opposite ends of the cell and start to decondense back into chromatin. The nuclear envelope reforms around each set of chromosomes, creating two distinct nuclei. Meanwhile, the mitotic spindle breaks down, and the cell prepares for cytokinesis.<\/p>\n

            \"TS<\/p>\n

            Question 8.
            \nDraw a labelled diagram of a Nerve cell and explain the structure.
            \nAnswer:
            \nA nerve cell, or neuron, is the fundamental unit of the nervous system. It is responsible for transmitting electrical signals (nerve impulses) between different parts of the body. Below is a labelled diagram of a typical neuron, followed by an explanation of its key structures.<\/p>\n

            Structure of a Neuron:<\/p>\n

              \n
            1. Cell Body (Soma): The main part of the neuron containing the nucleus and most of the cellular organelles.<\/li>\n
            2. Dendrites: Branch-like extensions that receive signals from other neurons or sensory receptors.
              \nThey function to transmit these signals toward the dendrite cell body.<\/li>\n
            3. Axon: A long, slender extension that carries nerve impulses away from the cell body and towards other neurons, muscles, or glands.<\/li>\n
            4. Axon Hillock: The region where the axon originates from the cell body. It plays a crucial Axon role in initiating the nerve impulse.<\/li>\n
            5. Myelin Sheath: A fatty, insulating layer that surrounds some axons. It helps to increase the speed of nerve impulse conduction.<\/li>\n
            6. Nodes of Ranvier: Gaps in the myelin sheath along the axon. They are essential for the rapid transmission of nerve impulses. ,<\/li>\n
            7. Axon Terminals (Synaptic Terminals): Small branches at the end of the axon that communicate with the next neuron or target cell through synaptic connections.<\/li>\n<\/ol>\n

              \"TS<\/p>\n

              Question 9.
              \nExplain the procedure and results of the experiment that proves \u201cHeat is released during Respiration\u201d.
              \nAnswer:
              \nThe experiment to demonstrate that heat is released during respiration can be conducted using a simple setup involving germinating seeds. here\u2019s a step-by-step procedure, along with an explanation of the expected results.
              \nMaterials:<\/p>\n