human glycolysis enzyme 457 amino acids 49000-51000 Da UniProt questions

Question 25

Put the steps of the process of signal transduction in the order they occur.

1. A conformational change in the signal-receptor complex activates an enzyme.

2. Protein kinases are activated.

3. A signal molecule binds to a receptor.

4. Target proteins are phosphorylated.

5. Second messenger molecules are released.

Question 26

Cancer cells require many nutrients which are supplied by blood vessels. The growth of new blood vessels into cancerous tissue is called

Question 27

Apoptosis

		is programmed cell death.
		is a process that acts to decrease the number of somatic cells.
		frees the fingers and toes of the human embryo from their "webbed" structure to independent structures.
		All of the choices are correct.

Question 28

Interphase

		occupies the majority of the cell cycle
		includes G1, S, and G2 stages
		results in an increase in cell size
		All of the answer choices are correct.

Question 29

What might prevent a cell from passing the G1 checkpoint?

		The DNA has not completed replication.
		The cell may need to enter the G0 stage.
		The cell may have damaged DNA and need to undergo apoptosis.
		Only B and C are correct.

Question 30

Which stage of the cell cycle focuses on cell growth, replication of organelles, and the accumulation of material for synthesizing DNA?

Question 31

Which sequence of the mitotic stages is correct?

		prophase, anaphase, prometaphase, metaphase, telophase
		prophase, telophase, anaphase, prometaphase, metaphase
		prophase, prometaphase, metaphase, anaphase, telophase
		telophase, anaphase, prophase, prometaphase, metaphase