Even though cellular macromolecules contain a large number of carbon and hydrogen atoms, they are not all spontaneously converted into CO2 and H2O

This absence of spontaneous combustion is due to the fact that biological molecules are relatively __________ and an input of energy is required to reach lower energy states.
(a) large
(b) polar
(c) stable
(d) unstable


(c)

Biology & Microbiology

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Labeling.The following statements refer to the accompanying figure showing the fine structure of a leaf   Figure 27.12A

A. Epidermis is labeled ____. B. Cells rich in chlorophyll and thus the main sites of photosynthesis are in layers labeled ____. C. The spongy mesophyll is labeled ____.

Biology & Microbiology

Oxidation-reduction reactions

A. remove electrons from both molecules involved. B. remove protons from one molecule and join them to another molecule. C. never occur at the same time. D. remove electrons from one molecule and add them to another molecule simultaneously. E. remove oxygen from the cell.

Biology & Microbiology

Four of the five conditions below are related by their

abnormal numbers of chromosomes. Select the exception. a. monosomy b. aneuploidy c. nondisjunction d. complete chromosome set e. trisomy

Biology & Microbiology

Why are most weight-loss programs typically ineffective?

What will be an ideal response?

Biology & Microbiology