AP Bio Review: Cell Transport, Signaling, and Intro Genetics

The picture is an example of...

• active tranport
• passive transport
• diffusion
• osmosis

Hydrophobic region of the cell membrane?

• E
• B
• C
• A 

When cells are placed in a __________ solution they begin to swell.

• Hypertonic
• Isotonic
• Hypotonic
• Equalized

Tags

NGSS.MS-LS1-2

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

• Facilitated Diffusion
• Exocytosis
• Endocytosis
• Receptor-mediated endocytosis

The difference in the concentration of a substance from one location to another is called 

• diffusion
• osmosis
• concentration gradient
• passive transport

If you looked at red blood cells under a microscope and saw the blood cells lysed (exploded), what would you say happened?

• The cells were placed in a hypotonic solution.
• the solution was isotonic.
• The solution was hypertonic.
• The cells are undergoing exocytosis

Tags

NGSS.HS-LS1-3

What role do protein kinases serve?

• remove phosphate groups to deactivate enzymes
• inactivate cAMP to AMP
• add phosphate groups to activate enzyme's
• activate G proteins

Which is not a part of a signal transduction pathway?

• response
• transcription
• transduction
• receptor

Epinephrine (also known as adrenaline or adrenalin) is a hormone and a neurotransmitter. The model for the action of Epinephrine is shown below.
Which of the following molecules act as a second messenger in the cascade by which epinephrine stimulates the activation of the enzyme glycogen phosphorylase?

• Adenosine
• Adenylyl cyclase
• Citric acid
• Cyclic AMP

Signal amplification is most often achieved by

• an enzyme cascade
• binding of multiple signals
• branching pathways
• action of adenylyl cyclase