Adjacent plant cells utilize ____ to rapidly communicate with each other

a. gap junctions
b. plasmodesmata
c. transport proteins
d. desmosomes
e. neurotransmitters


ANSWER: b

Biology & Microbiology

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If oxygen is unavailable, predict what happens to the citric acid cycle

A. It stops because the supplies of NAD+ and FAD become depleted. B. It stops because ADP levels increase in the absence of oxygen. C. It continues because none of the reactions in the citric acid cycle require oxygen. D. It continues because ATP levels are low, and low ATP activates enzymes of the cycle.

Biology & Microbiology

The human body requires about ____ of fat

each day to stay healthy.

a. 1 teaspoon b. 4 teaspoons c. 1 tablespoon d. 4 tablespoons e. 1 cup

Biology & Microbiology

Some methanogenic Archaea are capable of fixing nitrogen.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which nutritional category do animals and most pathogenic bacteria fall into?

a. chemoheterotrophs b. chemoautotrophs c. photoautotrophs d. photoheterotrophs

Biology & Microbiology