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A major function of tight junctions is to?

Whether a microtubule shrinks or grows is determined by the?

In what major way does the main set of kinesins differ from the dyneins?

Integrins link extracellular matrix proteins, either directly or indirectly, to all of the following intracellular proteins except?

Transport of glucose into the intestinal epithelium is driven by ion gradients established by the?

Integrins are transmembrane proteins that connect?

In yeast, START triggers the progression from G1 to S. Which of the following are involved in regulating START?

Which statement correctly describes the difference between the proton gradient across the inner mitochondrial membrane and the proton gradient across the thylakoid membrane of chloroplasts?

The major cation responsible for regulating actin-myosin contraction is?

Adherens junctions and desmosomes may be distinguished from each other on the basis of