QUESTION 19 Excess energy is stored in ___ mainly in ___. a. carbon atoms; adipose tissue b. carbon atoms; carbohydrates c. hydrogen bonds; water d. chemical bonds; carbohydrates e. chemical bonds; adipose tissue QUESTION 20 The pulmonary capillaries ___. a. bring deoxygenated blood back to the heart b. fuse with the alveoli to facilitate gas exchange c. fuse with the alveoli to facilitate gas exchange, and bring oxygenated blood back to the heart d. bring oxygenated blood back to the heart e. are closely associated with alveoli but do not fuse with them
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We know that excess energy is stored in the form of chemical bonds, specifically in molecules like carbohydrates and lipids (adipose tissue). So, the correct answer is: $\boxed{\text{d. chemical bonds; carbohydrates}}$ Show more…
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