Scientists believe that stimulating growth of algae and other organisms can reduce carbon dioxide amounts in the atmosphere. Where is carbon dioxide consumed in a plant cell?
A. Number of amyloplasts
B. Stroma in chloroplasts
C. Matrix in mitochondria
D. Central vacuole
E. Cellulose in cell wall
Answer: B
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Which of the following statements about oocytes and ovulation is correct?
a. the production of primary oocytes continues in women from the onset of puberty until the onset of menopause b. meiotic divisions are complete at the time of ovulation c. at ovulation, the structure released from the follicle includes a secondary oocyte and polar body d. all of the statements are correct
A protein is destined to be secreted from a cell. In which organelle would you expect to find the protein just after it is produced in the rough endoplasmic reticulum?
A) endosome B) lysosome C) secretory vesicle D) Golgi apparatus E) nucleus
Blood rich in oxygen is what color?
a. yellow b. pink c. bright red d. blue e. purple
Bicarbonate is an important buffer in blood and its concentration is regulated by the
A) heart. B) lungs. C) liver. D) kidneys. E) pancreas.