The extracellular matrix of a plant cell is composed of:
A. collagen.
B. cadherin.
C. cellulose.
D. All of the above are correct.
C
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When a cell reaches equilibrium, solute movement stops
a. True b. False
The products of genes that are switched on in
specific tissues at specific stages of development affect mainly a. gene replication. b. gene transcription. c. mRNA transcript processing. d. translation. e. post-translational processing of proteins
Hemocyanin:a
combines irreversibly with oxygen for transport within the body of various organisms. b. is bright red in color when combined with oxygen. c. has an iron-porphyrin group that is responsible for oxygen transport. d. is a respiratory pigment found in the blood of some invertebrate and vertebrate species. e. is a respiratory pigment that is colorless when deoxygenated.
Which plant is consumed by more people worldwide than any other crop?
a. wheat
b. corn
c. rice
d. potatoes
e. legumes