Exam 3: Cells

Which statement about the plasma membrane is true?

RNA differs from DNA in that it:

Threadlike structures composed of DNA and protein that fill a cell's nucleus are called

What determines genetic code?

How does the structure of the endoplasmic reticulum serve its purpose?

Which body process makes use of the sodium-potassium pump?

A cell's shape is determined by its ____________________.

The difference in concentration of a substance from one point to another is called a ____________________.

The gel-like substance that surrounds the nucleus of the cell and contains organelles is called ____________________.

Which of the following is one of the roles served by proteins in the plasma membrane?

Facilitated diffusion depends on which structure?

Which substance forms the bulk of the plasma membrane?

Nucleotides consist of one of four types of:

The building blocks of DNA are millions of pairs of ____________________.

What is the network of membranous canals and curving sacs that extend throughout the cytoplasm called?

Chromosomes form during which phase of mitosis?

The process whereby RNA makes a copy of a strand of DNA is called ____________________.

The process whereby a cell splits into two identical daughter cells is called ____________________.

Water pressure that develops in a solution as a result of osmosis is called

Based on your understanding of osmolarity and tonicity,which type of intravenous fluid would you expect most patients to receive?