Microfilaments differ from microtubules in that microfilaments
A) are thicker than microtubules.
B) are found only in plants, whereas microtubules are found in both plant and animal cells.
C) are mainly composed of actin, whereas microtubules are composed of tubulin.
D) help to anchor organelles, whereas microtubules primarily function to help cells change shape and move.
Answer: C
You might also like to view...
What part of the brain regulates the release of
ADH?
a. pituitary gland b. hypothalamus c. amygdala d. medulla e. pons
In eukaryotic initiation, one will often see the sequence ACCAUGG as a translational start sequence. This sequence is known as the ________ sequence
A) Okazaki B) ETS (eukaryotic translational start) C) Kozak D) IRES (internal ribosome entry sequence) E) CIBS (complex initiation binding sequence)
Which of the following is true for the signaling system in an animal cell that lacks the ability to produce GTP?
A) It would not be able to activate and inactivate the G protein on the cytoplasmic side of the plasma membrane. B) It could activate only the epinephrine system. C) It would be able to carry out reception and transduction but would not be able to respond to a signal. D) It would use ATP instead of GTP to activate and inactivate the G protein on the cytoplasmic side of the plasma membrane. E) It would employ a transduction pathway directly from an external messenger.
T or F: the right arm is ipsilateral to the right legt
What will be an ideal response?