Two essential ingredients for photosynthesis are

a. carbon dioxide and oxygen.
b. carbon dioxide and water.
c. oxygen and water.
d. oxygen and nitrogen gas


B

Biology & Microbiology

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All of the amino acids that are found in proteins, except for proline, contain a(n):

A) amino group. B) carbonyl group. C) carboxyl group. D) ester group. E) thiol group.

Biology & Microbiology

Splicing of pre-rRNA produces

a. the 28S rRNA. b. the 18S rRNA. c. both 28S and 18S rRNAs. d. None of the above

Biology & Microbiology

Photorespiration is detrimental for a plant because

A) RuBP is degraded. B) O2 is required. C) no glucose is produced. D) glucose is synthesized. E) CO2 is synthesized.

Biology & Microbiology

An organ represents a higher level of structure than the tissues composing it, and it performs functions that the tissues cannot perform alone. This is an example of the principle of

A) structural adaptations. B) cellular regulation. C) emergent properties. D) biotechnology.

Biology & Microbiology