题目内容

Transporting amino acids to ribosomes for assembly into needed proteins is the function of ()

A. DNA
B. mRNA
C. rRNA
D. tRNA

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Which of the following is composed of a large and a small subunit? ()

A. Golgi apparatus
B. endoplasmic reticulum
C. mitochondria
D. Ribosome

Which of the following is NOT the function of smooth ER ()

A. intracellular transport
B. protein synthesis
C. carbohydrate metabolism
D. lipid metabolism

The part of the cytoskeleton along which long distance transport of vesicles occurs (for instance, through axons from the cell body to the terminus) is called: ()

A. a microtubule
B. a microfilament
C. an intermediate filament
D. an ultramicrotubule

What mechanism is responsible for movements of cilia and flagella? ()

A. Kinesin moving on actin filaments
B. Dynein moving on actin filaments C ) Dynein moving on microtubules
C. Myosin moving on actin filaments

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