AP Bio Cell Comm and Cell Cycle Review 2025 (Unit 4)

The phase of mitosis in which the sister chromatids separate from each other

• prophase
• metaphase
• anaphase
• telophase

Tags

NGSS.HS-LS1-4

In mitosis, the two resulting cells are

• different from the starting cell and identical to each other.
• different from the starting cell and different from each other.
• identical to the starting cell and different from each other.
• identical to the starting cell and identical to each other.

Tags

NGSS.HS-LS1-4

Which of the following shows the correct sequence of the cell cycle?

• Mitosis-> G1->S->G2->cytokinesis
• S->G1-> G2-> mitosis-> cytokinesis
• cytokinesis->mitosis->G1->S->G2
•  G1->S->G2->mitosis->cytokinesis

Tags

NGSS.HS-LS1-4

A signal molecule that binds to a plasma-membrane protein is a

• ligand
• second messenger
• protein kinase
• receptor protein

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

What determines whether a cell is a target cell for a particular signal molecule?

• phosphorylation cascade
• cAMP
• signal receptors
• phosphatase

Each of the following numbered processes are involved in signal transduction pathways:  
 I.  Response  
II.  Amplification  
 III.  Reception  
IV.  Transduction
Which of the following represents the sequence of events in a typical signal transduction pathway?

• I, II, III, IV
• III, I, IV, II
• II, IV, I, III
• III, IV, II, I

What is being depicted in the image?

• Amplification of the signal molecule

• Enzymatic proteins inhibiting process of the signal transduction pathway

• Kinase groups adding dimer groups to other enzymes

• Diffusion of molecules within the cell due to the signaling molecule

One signal molecule can yield different results based on which receptor receives it.

• true

• false

What word means programmed cell death?

• apoptosis

• mitosis

• Ced-9

• bleb