AP Unit 2

In the membrane section seen, which section would represent the non-polar section of a protein?

• A

• B

• C

• D

Phosphate head is _______________.

• hydrophobic

• hydrophilic

• cell wall

• semi-permeable.

What molecules make up most of the cell membrane?

• phospholipids

• carbohydrate chains

• transport proteins

• cholesterol

Which way would the purple molecules move through the membrane?

• From the A side to the B-side

• From the B side to the A side

• none of the purple molecules would move

• they would move equally back and forth in a state of dynamic equilibrium

Which form of active transport is being shown? (Inside of  the cell is tan colored) 

• Facilitated Diffusion

• Exocytosis

• Endocytosis

• Receptor-mediated endocytosis

What type of transport is represented by figure "B"

• Active Transport

• Facilitated Diffusion 

• Protein Transport 

• Osmosis 

The theory of Endosymbiosis explains

• The origin of some eukaryotic organelles

• How species develop

• How bacteria live

• Why cells rely on one another

Which type of cell is this?

• Prokaryote

• Eukaryote

All of the following are evidence of endosymbiosis EXCEPT

• mitochondria and chloroplast ribosomes are similar to bacterial ribosomes

• mitochondria and chloroplast are similar in size to bacteria

• mitochondria and chloroplast have double membranes

• mitochondria and chloroplast have a nucleus

Which of the following cells would have the highest surface area to volume ratio?

• 1

• 2

• 3

• they are all the same