Fill in blanks: There are several ways that membrane proteins can associate with the cell membrane. Membrane proteins that extend through the lipid bilayer are called ______________ proteins and have ____________ regions that are exposed to the interior of the bilayer. On the other hand, membrane-associated proteins do not span the bilayer and instead associate with the membrane through an ? helix that is __________. _____________ membrane proteins are linked to the membrane through interactions with other membrane-bound proteins.
What will be an ideal response?
Transmembrane, hydrophobic, amphipathic, peripheral
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The infection cycle of HIV includes all of the following steps except
A. attachment. B. entry. C. replication. D. immediately killing the host cell. E. viral DNA integrates into the host chromosome.
What is the difference between 'heartwood' and 'sapwood'?
(a) Sapwood is the older part of the xylem (b) In contrast to sapwood, heartwood has lost its ability to transport water and minerals (c) Heartwood contains parts of the phloem which explains its different color (d) Heartwood and sapwood are both needed to transport organic material to the root
Glucose is not our only food source, nor the only one we can utilize in our bodies to generate energy. Other primary sources of energy include other sugars, proteins, and fats.What metabolic intermediate are fats primarily converted into?
A. Electron transport chain components B. Citric acid cycle intermediates C. Acetyl-CoA D. ATP Synthase E. Pyruvate
The combination of a somatic cell with an enucleated egg cell is:
A) transgenic biotechnology. B) cell reprogramming. C) somatic cell nuclear transfer. D) transformation.