AP Biology Unit 2 Cell Structure & Function

Which kind of cell is prokaryotic, may or may not have a cell wall, and has no membrane bound organelles?

• Animal

• Bacteria

• Fungi

• Plant

Cell organelle found in all cells that manufactures proteins.

(a)  

Major component of the lipid bilayer cell membrane.

• Cholesterol

• Channel Proteins

• Phospholipids

• Glycolipid/glycoprotein complexes

The hydrophilic head of the phospholipid ___ to interact with water and is said to be ____.

• Loves, polar

• Loves, nonpolar

• Hates, polar

• Hates, nonpolar

The hydrophobic tails of the phospholipid ___ to interact with water and is said to be ____.

• Loves, polar

• Loves, nonpolar

• Hates, polar

• Hates, nonpolar

Because the cell membrane is composed of many small parts that move together as a system, it is said to be _____ _____ (two words).

(a)  

Select any substances that can simply diffuse through the cell membrane.

• Oxygen gas

• Sugar

• Charged ions

• Small

• Charged

The diffusion of water through the cell membrane along its own concentration gradient is known as (a)   .

Select all forms of cell transport that require ATP energy.

• Facilitated diffusion

• Endocytosis

• Exocytosis

• Active Transport

The use of a protein pump (ions like Na+, K+, H+, etc.) is an example of ___ because ___.

• exocytosis; ions are moved out of the cell

• active transport; ATP is required

• facilitated diffusion; a protein is needed for transport

• endocytosis; ions are moved into the cell