Match the organelle with its description. Responses may be used multiple times or not at all. a. endoplasmic reticulum b. Golgi apparatus c. nuclear envelope
____ involved in the sorting of lipids and proteins
____ composed of two membranes
____ composed of multiple cisternae
____ involved in the synthesis of lipids and proteins
____ connected to the endoplasmic reticulum
What will be an ideal response?
Model Short Answer: b, c, b, a, c
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Which of the following cofactors is very important in the synthesis of purines?
A. Acetyl-CoA B. Folic acid C. Cytidine diphosphate D. Glutathione
The nucleotides within DNA are composed of a
A. phosphate group, ribose sugar, and nitrogenous base. B. sulfur group, ribose sugar, and nitrogenous base. C. phosphate group, deoxyribose sugar, and nitrogenous base. D. sulfur group, deoxyribose sugar, and nitrogenous base. E. phosphate group, hexose sugar, and nitrogenous base.
How does a heterotrophic animal obtain energy?
a. by ingesting living or dead organic matter b. by digesting food externally c. by making its own nutrients d. by engaging in photosynthesis
An obstetrician knows that one of her patients is a pregnant woman whose fetus is at risk for a serious disorder that is detectable biochemically in fetal cells. The obstetrician would most reasonably offer which of the following procedures to her patient?
A) karyotyping of the woman's somatic cells B) X-ray C) amniocentesis or CVS D) blood transfusion