Question:25:- Which of the following is an incorrect statement?
Answer: (c) Movement of molecules does not take place among cells
Question:26:- The internal (cellular) energy reserve in autotrophs is
Answer: (c) Starch
Question:27:- Which of the following equations is the summary of photosynthesis?
Question:28:- Choose the event that does not occur in photosynthesis
Answer: (c) Oxidation of carbon to carbon dioxide
Question:29. The opening and closing of the stomatal pore depends upon
Answer: (c) Water in guard cells
Question:30. Choose the forms in which most plants absorb nitrogen
Answer: (b) (2) and (3)
Question:31. Which is the first enzyme to mix with food in the digestive tract?
Answer: (c) Amylase
Question:32. Which of the following statement(s) is (are) correct?
Answer: (c) 1 and (4)
Question:33. Lack of oxygen in muscles often leads to cramps among cricketers. This results due to
Answer: (d) Conversion of pyruvate to lactic acid
Question:34. Choose the correct path of urine in our body
Answer: (c) kidney â†’ ureters â†’ urinary bladder â†’ urethra
Question:35. During deficiency of oxygen in tissues of human beings, pyruvic acid is converted into lactic acid in the
Answer: (a) Cytoplasm
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