Which of the following is an example of a pluripotent cell?
A. embryonic stem cells
B. red blood cells
C. fetal heart cells
D. umbilical cord blood
E. nerve cells
A
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Which statement about triglycerides is true?
a. Triglycerides are made of glycerol and three fatty acids. b. Triglycerides provide short-term energy storage. c. Triglycerides can be broken down but not made. d. Triglycerides are recycled from amino acids.
In response to gonadotropin releasing hormone (GnRH), the anterior pituitary secretes:
a. estrogen or testosterone b. sex stimulating hormone c. progesterone d. leutinizing hormone and follicle-stimulating hormone e. prolactin
What happens at the G2Â checkpoint?
A. The cell checks that the DNA has replicated. B. The cell receives external signals to divide. C. The cell makes sure the chromosomes are lined up correctly. D. The cell enters G0. E. The cell makes a commitment to divide.
How are large substances moved during exocytosis?
A) out of the cell B) into the cell C) between organelles D) through protein channels in the plasma membrane