Exam 4: Physiology of Cells

Diffusion of water through a selectively permeable membrane in the presence of at least one impermeable solute is referred to as:

Both temperature and pH change can affect the allosteric site of an enzyme.

Phagocytosis is an example of:

Special membrane channels called aquaporins assist the diffusion of water across the cell membrane.

Cellular secretion can be achieved by endocytosis.

The physical process by which water and solute move through a membrane when a hydrostatic pressure gradient exists across the membrane is the process of:

Match the name of each enzyme with its function or description. -rearrange atoms within a molecule

The process of pinocytosis may be viewed as the cell drinking.

The electron transport system makes ATP by the movement of electrons through the inner mitochondrial membrane.

Match the name of each enzyme with its function or description. -add or remove carbon dioxide

Match each term with its description. -describes a process that can take place without oxygen

An enzyme eliminates the activation energy needed for a reaction to occur.

One of the advantages of active transport is that it can move materials up,or against,its concentration gradient.

Diffusion of particles through a membrane by means of a carrier molecule is called:

If a cell were placed in a hypertonic solution:

Diffusion requires:

After phagocytosis occurs,enzymes from which organelle can digest what is in the vesicle?

Activation energy is the amount of energy gained by the cell as a result of a catabolic pathway.

Endocytosis and pinocytosis are both active transport processes because they require a carrier system such as a pump.

A saline solution that contains a higher concentration of salt than a red blood cell would be: