Most membrane functions are performed by _____

a. proteins c. nucleic acids
b. phospholipids d. hormones


A

Biology & Microbiology

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A new experimental pesticide is being tested by a large agricultural chemical company. An unfortunate side effect in plants treated with this new product is a decrease in NADPH production in the chloroplasts

(Interestingly, reduction of NAD+ to NADH in the mitochondria is unaffected.) Given this observation, which of the following would you expect to observe in the chloroplasts of these plants? A. an increase in 3-phosphoglycerate levels and a decrease in RuBP production B. a decrease in 3-phosphoglycerate levels and an increase in RuBP C. an increase in glyceraldehyde-3- phosphate production D. an increase in 3-phosphoglycerate production and an increase in RuBP

Biology & Microbiology

The step of DNA replication in which two replication forks moving in opposite directions may meet is called

A) initiation. B) elongation. C) termination. D) translation. E) translocation.

Biology & Microbiology

Which are the components of an ATP molecule?

A. ribose, 3 phosphates, 1 adenine B. glucose, 3 phosphates, 1 guanine C. deoxyribose, 3 phosphates, 1 guanine D. deoxyribose, ribose, 1 cytosine E. ribose, 2 phosphates, 1 thymine

Biology & Microbiology

If a gene is found in different groups, it is said to be

A. variable. B. active. C. conserved. D. associational. E. endogenous.

Biology & Microbiology