Exam 3: Cell Structure and Genetic Control

The _____________ of the messenger RNA is recognized by the _____________ of the transfer RNA.

Carbohydrates are primarily associated with the outer surface of the cell membrane.

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

Cholesterol and AIDS viruses are taken into cells by receptor-mediated endocytosis.

Apoptosis involves the activation of enzymes called ____________,which are the cell "executioners" that activate other enzymes in the nucleus that fragment the DNA.

Primary cilia may serve sensory functions such as vision.

The flexibility of a cell's membrane is determined by the ratio of _____________ to ___________.

A codon codes for a(an)

Cells with large numbers of microvilli on their apical surface are probably involved in

This process is also known as reduction division:

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

Intake of a specific molecule from the extracellular compartment by a cell occurs through

All mitochondria that an individual has came solely from the mother's fertilized egg cell.

In epigenetic inheritance

Phagocytosis is a bulk transport process in which the plasma membrane extends as pseudopods around a particle of organic matter.

How many proteins does it appear that humans can produce?

Cells synthesizing large quantities of proteins would have numerous nucleoli.

The centrosome is responsible for

Loss of DNA sequences at the ends of chromosomes in the ________ region may cause cell senescence.

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