Molecules may move down their concentration gradient by passing through a different type of membrane transporter called a membrane carrier. Thus, the carrier may facilitate diffusion in a process called ____.

Carrier-mediated passive transport.

Are pores through which water molecules, specific ions, or small, water-soluble molecules can pass.

Description: Movement of particles through the phospholipid bilayer from an area of higher concentration to an area of lower concentration—that is, down the concentration gradient. Example: Movement of carbon dioxide out of all cells.

_____and_____ derive from pyrimidine, so they are known as____.

Cytosine and thymine, pyrimidine bases.

What is a peptide bond?

It is one that binds the carboxyl group of one amino acid to the amino group of another amino acid.

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Daddie Varlai

Physiology week 1-6

Question	Answer
The process by which large molecules, notably proteins, can leave the cell even though they are too large to move out through the plasma membrane is called what?	Exocytosis.
Name the two basic forms of endocytosis.	Phagocytosis and pinocytosis.
In a type of endocytosis called _____, receptors in the plasma membrane first bind to specific molecules in the extracellular fluid, which triggers endocytosis.	receptor-mediated endocytosis
What happen when the extended edges of membrane fuse?	Vesicle is form.
_______ are temporary membrane bags that transport molecules.	Vesicles
Diffusion of any type is a passive process. T/F	True.
Molecules may move down their concentration gradient by passing through a different type of membrane transporter called a membrane carrier. Thus, the carrier may facilitate diffusion in a process called ____.	Carrier-mediated passive transport.
Membrane channels	Are pores through which water molecules, specific ions, or small, water-soluble molecules can pass.
Simple diffusion	Description: Movement of particles through the phospholipid bilayer from an area of higher concentration to an area of lower concentration—that is, down the concentration gradient. Example: Movement of carbon dioxide out of all cells.
Homeostatic mechanisms maintain concentration differences so that diffusion does not stop. This condition of continual, constant diffusion is sometimes called a ____.	Dynamic equilibrium.
_____and_____ derive from pyrimidine, so they are known as____.	Cytosine and thymine, pyrimidine bases.
A tertiary structure may include several complicated “knots” called ______.	Domains.
The most common type of coil takes a clockwise direction and is called (a) an_____.	Alpha helix.
What is a peptide bond?	It is one that binds the carboxyl group of one amino acid to the amino group of another amino acid.
The elements that make up a protein molecule are bonded together to form chemical units called what?	Amino Acids.

Created by: daddiev1976

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