How long ago did the hominin evolutionary
line diverge from that leading to the great
apes?
a. about 3 million years ago
b. between 10 million and 5 million years ago
c. during the Eocene epoch
d. less than 2 million years ago
e. about 1.5 million years ago
B
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Kinesis is
A. a movement toward a stimulus. B. a movement away from a stimulus. C. any movement in response to a stimulus, but not necessarily toward or away. D. a movement. E. any movement away from an object.
You have identified a novel cytoplasmic protein. Through sequence analysis you are able to identify the presence of a number of serine/threonine phosphorylation motifs. Based on these data, you hypothesize that this protein may be a substrate for what kind of enzyme?
A. a protein kinase B. a G protein-coupled receptor C. a phospholipase D. a tyrosine phosphatase E. a receptor tyrosine kinase
Which of the following statements about the cyclic pathway is false? a. In the cyclic pathway, electrons moving through the ETC power the pumping of hydrogen ions into the thylakoid compartment
b. In the cyclic pathway, electrons lost from the photosystem are returned to it. c. The cyclic pathway involves type I photosystems but not type II photosystems. d. The cyclic pathway produces ATP and NADPH.
What is a small circular piece of DNA that carries a few genes called?
a. Pili b. Flagella c. Ribosome d. Plasmid e. Cilia