Receptor-mediated endocytosis brings in specific material by engulfing it in vesicles. What factors, either directly or indirectly, are related to this process? Choose all that apply.
A. A clathrin coat is present.
B. It helps to increase membrane fluidity by helping to transport cholesterol into the cell.
C. It is an active process.
D. It is a passive process.
E. It uses carrier proteins.
Answer: C
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Choose the evidence supporting the argument that a small number of changes in developmental regulatory genes can result in large phenotypic changes.(choose all that apply)
_____ Closely related animals can have very different patterns of development. _____ Most developmental genes are highly conserved. _____ Much of phenotypic variation is environmentally caused. _____ The developmental "toolkit" consists of a large number of genes. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about developmental regulatory genes? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The Hardy–Weinberg principle specifies the conditions under which a population of diploid organisms achieves ____
a. progressive evolution b. allopatric speciation c. adaptive radiation d. punctuated equilibrium e. genetic equilibrium
All insertion sequences (IS elements) contain two features that are essential for their movement. What are these two elements?
A) transposase and oncogenes B) proto-oncogenes and oncogenes C) integrase and pseudogenes D) integrase and oncogenes E) transposase and inverted terminal repeats
Nitrogen-fixing bacteria convert gaseous nitrogen into:a
amino acids. b. phosphate. c. ammonia. d. nitrite. e. nitrate.