AP: Cell Communication & Cell Cycle

What is a G protein?

• specific type of membrane-receptor protein
• protein on the cytoplasmic side of a membrane
• membrane-bound enzyme
• relay protein

Which of the following can activate a protein by transferring a phosphate group to it?

• cAMP
• G Protein
• protein kinase
• protein phosphatase

What do second messengers do?

• transport a signal through the lipid bilayer
• relay a signal from the outside to the inside of the cell
• relay message from the inside of the mebrane throughout the cytoplasm
• dampen the message

Signal amplification is most often achieved by

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

Which letter(s) can be proteins? (multiple answers are correct)

• A

• B

• C

• D

• E

Tags

NGSS.HS-LS1-6

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have -

• 16 chromosomes.
• 46 chromosomes.
• 8 chromosomes.
• 4 chromosomes.

Tags

NGSS.HS-LS1-4

In the S stage of interphase_______________

• the cell grows
• the nucleus divides
• the cell membrane divides
• the DNA is replicated

Interphase contains three stages, including the G1 and G2 stages.  Which of the following occurs during these gap stages? 

• separation of chromosomes
• cellular growth 
• DNA replication
• viral transformation 

Cells of organism must replicate for ?

• growth
• repair of damaged cells
• replacement of dying cells.
• All of the above

Tags

NGSS.HS-LS1-4

What is Apoptosis?

• A tumor

• A protein

• Programmed cell death

• Cell cycle checkpoints