Exam 3: Cell Structure and Function

Which organelle can be likened to a post office?

The grainy-looking substance inside the nucleus is composed of

Brett needs to distinguish two points that are 0.5 mm apart.What is the easiest way to do this?

When ATP is broken down,heat is released.

The size of a metabolizing cell is limited by its

What is the name of a photograph of a specimen obtained with a microscope?

Only glucose can be used as an energy source in the human body.

During a hurricane,salt water invades fresh water marshes causing many of the plants to die.The plants are killed because the salt water solution is __________________ to the plants,drawing water from their cells.

What type of microscopy provides a three-dimensional view of the surface of an object?

Sheree observed an amoeba feeding by engulfing the prey with it's false feet or pseudopods.This process is known as

The plasma membrane contains how many layers of phospholipids?

A solution is at equilibrium across a plasma membrane.If 50 molecules enter the cell,how many molecules exit the cell?

In an experiment in the laboratory,a small colored molecule is injected into one cells.Within minutes,the molecule has entered the adjacent cells.What type of junction connects these cells?

Why type of junction must there be between the cells of your bladder?

The first day of football practice was rough on the squad.The players complained of cramps and sore muscles.The reason for their complaints was that there was a __________________ build up in their muscles.

What is the function of cholesterol in the plasma membrane?

What is the name of the semifluid medium inside the cell?

Archaea are considered the evolutionary precursors to eukaryotic cells.

Which of the following is not associated with the cytoskeleton?

What cell structure is composed of a stack of slightly curved saccules that are important in packaging and secretion?