Exam 3: Cell Structure and Function

Which of the following is a function of the cell membrane?

The process of synthesizing an mRNA chain through the use of DNA molecules is called

The folds of the internal membrane within mitochondria are called

A mechanism in which two substances move in opposite directions across the cell membranes is called _________________________.

Most intracellular vesicles are formed by

The enzyme _________________________ is required for the synthesis of mRNA.

The physical process by which a single animal cell separates into two cells is called _________________________.

Only _________________________ -soluble substances can pass directly through the cell membrane's lipids.

If a cell lacked centrioles, it would not be able to

The mRNA sequence that is complementary to the sequence UAG on a tRNA is

Using the figure above, identify the labeled part. -Label C: ________

The coils of DNA and protein found in the cell nucleus are called

When ions are moved across the cell membrane,

_________________________ proteins interact with substances by binding to them and changing shape to regulate the passage of materials through the cell membrane.

Using the figure above, identify the labeled part. -Label M: ________

The stage of the cell cycle at which chromatin is invisible to a light microscope is

Uncondensed genetic material is known as _________________________.

Which of the following contains a double membrane?

Which of the following is true of the sodium-potassium exchange pump?

_________________________ processes move substances across a membrane regardless of concentration gradients.