How do new cyclin proteins appear in the cytoplasm?
A. They are recycled.
B. They are made through protein synthesis.
C. They are imported from outside the cell.
D. All of the above are correct.
B
Biology & Microbiology
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The microtubule organizing center (MTOC) of an animal cell is an identifiable structure known as the ____
a. cell plate b. centrosome c. kinetochore d. centromere e. chromosome
Biology & Microbiology
Cellulose is a polysaccharide synthesized by plants and digested by humans for energy.
a. true b. false
Biology & Microbiology
A layer of lipoprotein and glycoprotein that covers the outer surface of some viruses is the
A. viroid. B. capsid. C. membrane. D. envelope. E. casing.
Biology & Microbiology
The human lymphatic system consists of all of the following structures except the
A) thymus. B) tonsils. C) spleen. D) pancreas.
Biology & Microbiology