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1) The mesophyll present in leaves are considered as the site of a. lipid synthesis b. protein synthesis c. photosynthesis d. respiration
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2) The resolving power of a light microscope is a. 5 micrometer b. 2 micrometer c. 0.5 micrometer d. 0.2 micrometer
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3) The tissues that provide flexibility and strength to the plants are called a. endocytosis tissues b. exocytosis tissues c. connective tissues d. support tissues
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4) The cell membranes are also known as a. active membrane b. passive membrane c. permeable membrane d. semi-permeable membrane
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5) The smooth muscles are found in walls of a. urinary bladder b. blood vessels c. alimentary canal d. all of above
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6) The lumen is also known as a. right artery b. left artery c. small intestine d. large intestine
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7) Considering kinds of epithelial tissues, the columnar epithelium is composed of a. elongated cells b. flat cells with flagella c. cube cells with cilia d. flat cells with cilia
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8) As compared to simple diffusion, the facilitated diffusion rate is a. higher b. lower c. equal d. none of above
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9) The cell organelle which is found in the cells of photosynthetic protists and plants is called a. granum b. stroma c. chloroplasts d. plastids
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10) The situation in which transport protein moves the substance to lower concentration from higher concentration is called a. osmoregulatory diffusion b. facilitated diffusion c. passive diffusion d. active diffusion
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11) The measure of the clarity of a particular object is classified as a. resolution only b. resolving power only c. up gradation d. resolution and resolving power
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12) The environment in which net uptake of water is so low that the cell becomes flaccid is a. toning environment b. hypertonic environment c. hypotonic environment d. isotonic environment
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13) The Deoxyribonucleic Acid (DNA) stands for a. deoxyribonucleic acid b. dicotyledonous nuclei c. deoxidized nuclei d. all of above
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14) The Dutch naturalist who observed first living cells is a. Bruce Albert b. Antonie van Leeuwenhoek c. Ernst Haeckel d. Richard Alexander
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15) The electrons of Transmission Electron Microscope are transmitted through a. photographic film b. vacuum chamber c. glass funnel d. specimen
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16) The thick secondary cell walls are also known as a. vascular elements b. lateral elements c. epidermal elements d. vessel elements
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17) The skeletal muscles are also known as a. striated muscles b. impulsive muscles c. reflexive muscles d. adipose muscles
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18) The examples of compound tissues include a. nervous and connective tissues b. phloem and xylem tissues c. support and ground tissues d. epithelial and muscle tissues
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19) The movement of the molecules to the higher concentration area from low concentration area is called a. isotonic transport b. active transport c. passive transport d. hypotonic transport
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20) The name of the British scientist who described the cells for the very first time is a. David Baltimore b. David Baltimore c. Robert Hooke d. Antonie Leeuwenhoek
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