A photosystem is _____.
a) the innermost portion of the mitochondria
b) the portion of the enzyme to which the activator molecule binds
c) a collection of pigment and protein molecules that absorbs solar energy
d) the central, semi-fluid compartment of the choloroplast
Ans: c) a collection of pigment and protein molecules that absorbs solar energy
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Diploid (2n) cells in the ____ of mosses, ferns, gymnosperms, and angiosperms divide meiotically and form haploid (1n) spores
Fill in the blank with the appropriate word.
The photoreceptor that absorbs blue light and triggers a phototropic response is:
a. phototropin. b. phytochrome. c. jasmonate. d. systemin. e. zeatin.
Which of the following parts of the vertebrate brain is most closely associated with motor (muscular) coordination?
a. The hypothalamus b. The medulla oblongata c. The pineal body d. The thalamus e. The cerebellum
Suppose you are studying photosynthesis in a research lab. You grow your plants in a chamber with a source of water that has a radioactively labeled oxygen atom. What photosynthetic product will be radioactive?
A) NADPH B) CO2 gas C) ATP D) Glucose E) O2 gas