mason_wills
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Which of the following is a characteristic of mitochondria that suggests that they might have evolved from free-living bacteria?
A) Mitochondria have their own DNA.
B) Mitochondria rely upon proteins as their source of energy.
C) Mitochondria do not produce ATP.
D) A single, highly folded plasma membrane surrounds mitochondria.
E) The plasma membrane of a mitochondrion, forming the surface of this organelle, is the site of many important steps of aerobic metabolism.
Why would you expect tobacco smokers (and those exposed to tobacco smoke) to be at greater risk of an ectopic (tubal) pregnancy?
A) Tobacco causes the cilia to grow to be very long and block movement through the fallopian tubes.
B) Tobacco interferes with the sweeping motion of cilia that aids in the movement of the egg toward the uterus.
C) Tobacco interferes with the transfer of oxygen to the uterus, thereby forcing the zygote to implant in a fallopian tube.
D) Tobacco smokers tend to get pregnant when they are younger.
E) Tobacco interferes with the functioning of the flagella propelling sperm.
Which of the following is a function of the plasma membrane?
A) control center of the cell
B) intracellular digestion
C) fat synthesis
D) protein synthesis
E) regulation of the passage of material into and out of the cell
A) Mitochondria have their own DNA.
B) Mitochondria rely upon proteins as their source of energy.
C) Mitochondria do not produce ATP.
D) A single, highly folded plasma membrane surrounds mitochondria.
E) The plasma membrane of a mitochondrion, forming the surface of this organelle, is the site of many important steps of aerobic metabolism.
Why would you expect tobacco smokers (and those exposed to tobacco smoke) to be at greater risk of an ectopic (tubal) pregnancy?
A) Tobacco causes the cilia to grow to be very long and block movement through the fallopian tubes.
B) Tobacco interferes with the sweeping motion of cilia that aids in the movement of the egg toward the uterus.
C) Tobacco interferes with the transfer of oxygen to the uterus, thereby forcing the zygote to implant in a fallopian tube.
D) Tobacco smokers tend to get pregnant when they are younger.
E) Tobacco interferes with the functioning of the flagella propelling sperm.
Which of the following is a function of the plasma membrane?
A) control center of the cell
B) intracellular digestion
C) fat synthesis
D) protein synthesis
E) regulation of the passage of material into and out of the cell