Biology

In a paramecium, cell surface integral membrane proteins are synthesized A) in t

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Which of these are not embedded in the hydrophobic portion of the lipid bilayer

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A protein that spans the phospholipid bilayer one or more times is A) a transmem

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In the years since the proposal of the fluid mosaic model of the cell membrane,

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The primary function of polysaccharides attached to the glycoproteins and glycol

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Which of the following is a reasonable explanation for why unsaturated fatty aci

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When a membrane is freeze-fractured, the bilayer splits down the middle between

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In order for a protein to be an integral membrane protein it would have to be A)

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According to the fluid mosaic model of cell membranes, which of the following is

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The presence of cholesterol in the plasma membranes of some animals A) enables t

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When biological membranes are frozen and then fractured, they tend to break alon

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Which of the following types of molecules are the major structural components of

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Singer and Nicolson's fluid mosaic model of the membrane proposed that A) membra

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Some regions of the plasma membrane, called lipid rafts, have a higher concentra

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Who was/were the first to propose that cell membranes are phospholipid bilayers?

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Centrioles, cilia, flagella, and basal bodies have remarkably similar structural

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The differences among the three categories of cytoskeletal elements outlined in

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Movement of vesicles within the cell depends on what cellular structures? A) mic

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Motor proteins provide for molecular motion in cells by interacting with what ty

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How does the cell multiply its peroxisomes? A) They bud off from the Golgi. B) T

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In a liver cell detoxifying alcohol and some other poisons, the enzymes of the p

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Why isn't the mitochondrion classified as part of the endomembrane system? A) It

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Which type of organelle is found in plant cells but not in animal cells? A) ribo

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A cell has the following molecules and structures: enzymes, DNA, ribosomes, plas

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One of the key innovations in the evolution of eukaryotes from a prokaryotic anc

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