Exam 4: Physiology of Cells

A hypertonic solution contains _____ concentration of solute _____ the cell.

Match each term with its description. -first step in cellular respiration

Red blood cells placed in a hypertonic solution may be destroyed because the blood cells will lyse.

The physical movement of water and solutes through a membrane when a hydrostatic pressure gradient exists is called filtration.

Explain how the allosteric site on an enzyme allows the enzyme to function.Explain the types of allosteric effectors.

Which is true about the sodium and potassium pump?

Lactic acid is the result of glycolysis and is the substance that enters the citric acid cycle.

Match the name of each enzyme with its function or description. -add water to a molecule without splitting it

Coenzymes join enzymes to form proenzymes.

A solution may be defined as various solutes dissolved in a solvent.

An enzyme is a catalyst.

Digestive enzymes belong to which group?

The size of the molecule is an important factor in both dialysis and filtration.

Briefly explain the process of glycolysis.What are the energy molecules produced and how many of each are produced?

To maintain homeostasis,the sodium-potassium pump moves equal amounts of sodium and potassium into and out of the cell.

Compare and contrast the processes of diffusion and osmosis.

Gated membrane channels can be opened and closed only by chemical stimuli.

An inorganic substance,such as an ion,is called a coenzyme when it is part of an enzyme.

Both the citric acid cycle and the electron transport system occur in the mitochondria.

A 10% solution of NaCl has a higher concentration of water than a 10% solution of glucose.