Metabolism
Cellular respiration
Mitosis
Overview
Miscellaneous
100
ATP is made from
ADP and P
100
The products of glycolysis are
What is NADH, pyruvate, ATP
100

Which of the following statements about mitosis is incorrect?

A.  The daughter nuclei are genetically identical to the parent nucleus.

B.  Chromosomes separate during anaphase due to the interaction of polar microtubules from opposite poles pushing against each other.

C.  Chromosomes separate during anaphase when the kinetochore microtubules shorten as they depolymerize.

D.  Chromosomes move to the metaphase plate using motor proteins, a kind of kinesin, attached to spindle fibers.

B
100
This type of reaction proceeds with the net release of free energy
What is exergonic reaction
100
These reactions take place in the cytoplasm
What are glycolysis and fermentation
200
This pathway consumes energy to build up polymers from monomers
What is anabolic pathways
200
The intermediary molecule that enters the citric acid cycle and is formed in part by the removal of a carbon from one molecule of pyruvate
What is acetyl CoA
200

Which of the following does not occur during mitosis?

a. condensation of the chromosomes

b. replication of the DNA

c. separation of sister chromatids

d. spindle formation

e. separation of the centrosomes


B.  (kind of a trick question....DNA replication occurs during interphase, which is not part of mitosis)
200
This catalyzes the reaction by lowering the activation energy
What is enzyme
200

The mechanism of action of many common medications involves interfering with the normal pathways that cells use to respond to hormone signals. Which of the following best describes a drug interaction that directly interferes with a signal transduction pathway? 

A.  A medication causes the cell to absorb more of a particular mineral, eventually poisoning the cell.

B. A medication enters the target cell and inhibits an enzyme that normally synthesizes a second messenger. 

C.  A medication enters the target cell’s nucleus and acts as a mutagen. 

D.  A medication interrupts the transcription of ribosomal RNA genes. 

B.  e. Second messengers are involved in signal transduction pathways, and if the second messenger is not present, the pathway is blocked.

300
This provides energy coupling between exergonic and endergonic reactions
What is ATP
300
ATP made during glycolysis is generated by
What is substrate level phosphorylation
300

If cells in the process of dividing are subjected to colchicine, a drug that interferes with the functioning of the spindle apparatus, at which stage will mitosis be stopped?

A.  Anaphase

B.  Prophase

C.  Telophase

D.  Metaphase

D
300
What metabolic pathway is common to both cellular respiration and fermentation
What is glycolysis
300
During cellular respiration the Krebs cycle produces
What is NADH, FADH2, & CO2
400
This type of reaction breaks down molecules into smaller parts
What is catabolic?
400
The primary role of oxygen in cellular respiration is
What is to act as the final acceptor for electrons and hydrogens forming water
400

Taxol is an anticancer drug extracted from the Pacific yew tree. In animal cells, taxol disrupts microtubule formation by binding to microtubules and accelerating their assembly from the protein precursor, tubulin. 

Surprisingly, this stops mitosis. Specifically, taxol must affect

A) the fibers of the mitotic spindle.

B) anaphase.

C) formation of the centrioles.

D) chromatid assembly.

A
400
This is the purpose of fermentation
What is to produce NAD+ for glycolysis to continue?
400
Energy released by the electron transport chain is used to pump hydrogen ions into this location during cellular respiration
What is mitochondrial inner membranous space
500
This type of molecule allows for reactions in photosynthesis and cellular respiration to occur more quickly
What is an enzyme?
500
Which type of phosphorylation produces the most ATP when glucose is completely oxidized to carbon dioxide and water
What is Oxidative Phosphorylation
500

Which of the following is true concerning cancer cells?

A) They do not exhibit density-dependent inhibition when growing in culture.

B) When they stop dividing, they do so at random points in the cell cycle.

C) They are not subject to cell cycle controls.

D) A, B, and C

D
500
In cellular respiration the endergonic reaction of the formation of ATP is coupled with
What is the exergonic reaction of breaking down glucose.
500

P53 is a protein that promotes transcription of a gene that suppresses cell division.  RAS is a protein that can activate the transcription of proteins that promote cell division.  Which of the following is most likely to be found in a cancerous cell?

A.  High activity levels of both P53 and RAS

B.  High activity levels of P63 and the absence of RAS.

C.  High activity levels of RAS and the absence of P53.

D.  The absence of both P53 and RAS.

C.
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