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EXAMINATION (2020-21) PREPARATORY SUBJECT - BIOLoGY I MARKS- 8 0 C L A S S - X S T A N D A R D SECTION-I (40 MARKS) JAttempt all parts of the questions in this section) Question -1 a) Name i) The ) (5) the following: which initiates cell division in animal cell. structure used to blood pressure. measure I n s t r u m e n t i) The structural iv The pressure vThe unit of kidney. the cell contents on o aggregate of the nerve cell bodies. the full form of the bi Write i) DNA ) LH ii) ATP iv) NADP the cell wall. following: v) ACTH (5) c Rewrite the passage by correctly flling the blanks: (5) Each single DNA strand is composed of repeating. which are made of and a nitrogenous base, Adenine pairs with - - Cytosine pairs with dPick the odd one in the group & state the category to which others (5) belong: i Grana, Fret, Thylakoid, Stoma Urea, Glucose, Amino acids, Na+ Othes are reab Sosbed un ha i) Coughing, Eating, Sneezing, Blinking iv) Addison's disease, Virilism, Cretinism, Cushing's syndrome v Cyton, Photon, Axon, Dendron (5) e Define the following: vRootpressure iTurgidity ii) Hormones i) Synapse iv) Osmoregulation ) Mention if the following ALphTon statements are suitable 4True" or concave "False": lens. 1 Myopia can be corrected by using matter of the brain is perikaryon. 1) The main component of the white ii) Mitosis results in four daughter cells. is about 120 hours. 1v The average life of RBCs in our body in weight of the plant. V) Photosynthesis results in loss dry (5)
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