Exam 5: Cell Structure

Cytoplasm is another term for cytosol.

Organelles can be divided into two groups, hydrophobic (water fearing) and hydrophilic (water loving).

Rafts are stiff groupings of membrane molecules. What is their function?

The catalase in the peroxisomes reacts to detoxify carbon dioxide.

Which of the following is not a function of the plasma membrane?

Name and give the functions of the non-membranous organelles of the cell.

Which of the following is not true of the rough endoplasmic reticulum?

The largest human cell is the female ovum or egg cell.

The ____ is often called the microtubule organizing center.

Match each cell structure with its corresponding description or function. -One of the largest structures in the cell; contains DNA

Match each term to the phrase that describes it best. -Cell fibers that are slightly thicker than microfilaments

The number of mitochondria in a cell is basically related to its degree of cell activity.

Match each term to the phrase that describes it best. -Largest of the cell fibers; act like "engines" for the cell

Which fiber is the smallest of the cell fibers?

Lysosomes perform autophagy. This means that they:

Rafts are stiff groupings of membrane molecules that are rich in cholesterol.

Tight junctions do not allow molecules to spread through the cracks between cells.

Match each term to the phrase that describes it best. -Cell fiber that can be found in muscle cells

Primary cilia can act as sensory organelles.

Match each cell structure with its corresponding description or function. -Vesicles or sacs in the cell that can destroy large molecules or even the cell itself