Exam 3: Cell Structure and Genetic Control

A cell lacking a Golgi apparatus would not be able to add _____________ to proteins.

Proteins to be used by the cell will fold into their secondary or tertiary structures at the ribosomes.

Pre-mRNA contains noncoding regions called

How are the phospholipids arranged to form the plasma membrane?

The process by which cells secrete cellular products into the extracellular environment is

Folds of the plasma membrane that increase surface area are called

The process of tissue death in which cells swell, rupture their membranes, and burst is called

The folded inner membrane of a mitochondrion is called

In the nucleus of a diploid cell, the amount of cytosine would equal the amount of

Tay-Sachs disease is caused by a genetic defect which affects the activity of _______ enzymes.

Which of the following is NOT a molecular motor used to move substances along the cytoskeleton?

Telomeres serve to

The duration of the cell cycle is decreased in response to increased amounts of

Small RNA and protein regions are joined together to make functional mRNA by

One example of a tumor suppressor gene is p53, which protects against cancer by directly blocking the ability of cyclins to stimulate cell division.

Chromatin is comprised of _____________ and ____________.

Cells which contain large numbers of mitochondria and large amounts of smooth endoplasmic reticulum most likely are

Proto-oncogenes are mutated forms of normal genes which contribute to cancer.

Anticodons found in mRNA allow for base pairing with the codons in tRNA.

______ molecules aid in the folding of a polypeptide chain into its secondary or tertiary structure.