BIO 161 Lecture Notes - Lecture 3: Endoplasmic Reticulum, Mitochondrial Disease, Citric Acid Cycle

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27 Jan 2019

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Practice questions: tay-sachs disease is a rare genetic disorder caused by the absence of the enzyme hex a. This enzyme is responsible for breaking down lipids in the nerve cells, leading to deterioration of the nervous system. This chemical should be broken down in the cells. What specific type of organelle is not working as well in these seniors: golgi complex, lysosome, mitochondria, endoplasmic reticulum, the first phase of cellular respiration is called _________ and takes place in the. __________ of the cell: citric acid cycle, cytoplasm, glycolysis, cytoplasm, krebs cycle, mitochondria, glycolysis, mitochondria, ricin is a chemical warfare agent that kills individuals who inhale it by disabling the ribosomes. With ricin poisoning, a cell would no longer be able to produce _________: electrons, atp, proteins, protons, the __________ contains the genetic information of the cell. This information is organized into chromosomes which are only visible during cell division.

Related Questions

1. Which process releases energy?

Hydrolysis of ATP

Synthesis of ATP

2. How many net ATP are synthesized in glycolysis per glucose

30+

3. Where does glycolysis occur?

Nucleus

Endoplasmic reticulum

Cytosol

Mitochondria

4. How many net ATP are synthesized per glucose in glycolysis and the TCA (Krebs, citric acid) cycle combined?

30+

5. Where does the TCA (Krebs, citric acid) cycle occur?

Cytosol

Nucleus

Mitochondria

Endoplasmic reticulum

6. How many net ATP are synthesized per glucose in glycolysis, the TCA (Krebs, citric acid) cycle and from the electron transport chain combined.

30+

7. Where is the electron transport chain located?

Cytosol

Endoplasmic reticulum

Mitochondria

Nucleus

1.) Certain complexes of the mitochondrial electron transport chain pump protons. Which of the following BEST describes the movement of protons in this situation?

a.) across the outer mitochondrial membrane, from the cytoplasm to the intermembrane space

b.) across the outer mitochondrial membrane, from the intermembrane space to the cytoplasm

c.) across the inner mitochondrial membrane, from the intermembrane space to the matrix

d.) across the inner mitochondrial membrane, from the matrix to the inter membrane space

2.) Which regulatory mechanism is activated when the overall energy availability of a cell is high?

a.) Citrate inhibits phosphofructokinase-1.

b.) ADP up-regulates phosphofructokinase-1.

c.) ATP inhibits phosphofructokinase-1.

d.) AMP up-regulates phosphofructokinase-1.

3.) Electron carriers are oxidized during which of the following reactions?

a.) glycolysis

b.) citric acid cycle

c.) electron transport chain

d.) the conversion of pyruvate to acetyl coA

e.) all of the above

purpleswan410

QUESTION 1

Which of the following is the correct order of the three stages of cellular respiration?

	a.	Krebs cycle, glycolysis, electron transport
	b.	electron transport, glycolysis, Krebs cycle
	c.	Krebs cycle, electron transport, glycolysis
	d.	glycolysis, Krebs cycle, electron transport
	e.	electron transport, Krebs cycle, glycolysis

1 points

QUESTION 2

Consider a bacterial cell that performs anaerobic respiration. If that bacterial cell had access to six molecules of glucose to use, how many ATP molecules would it be able to produce?

	a.	2
	b.	34
	c.	36
	d.	6
	e.	12

1 points

QUESTION 3

The oxygen that organisms need to live is used exclusively in which of the following metabolic pathways?

	a.	Electron transport chain
	b.	Anaerobic respiration
	c.	Glycolysis
	d.	Krebs cycle
	e.	ATP-Synthase

1 points

QUESTION 4

The electron transport chain uses the energy in NADH and FADH₂ to pump H⁺ ions from the matrix to the innermembrane space. The H⁺ gradient is then used to power ATP-Synthase. Enough H⁺ is pumped from the energy in a molecule of NADH to produce ______ ATP molecules, while enough H⁺ is pumped from the energy in a FADH₂ molecule to produce ______ ATP molecules.

	a.	three; two
	b.	three; three
	c.	two; two
	d.	two; three

1 points

QUESTION 5

Which of the following list contains only products of cellular respiration?

	a.	glucose, oxygen, ADP
	b.	ATP, carbon dioxide
	c.	oxygen, ADP, carbon dioxide
	d.	ATP, glucose, oxygen
	e.	glucose, ATP

1 points

QUESTION 6

What powers the enzyme ATP-Synthase?

	a.	NADH molecules
	b.	oxygen (O₂)
	c.	ATP
	d.	NADH and FADH₂ molecules
	e.	The H⁺ gradient between the matrix and inner-membrane space

1 points

QUESTION 7

Organisms exist which are able to survive using only glycolysis (i.e. without using oxidative phosphorylation).

True

False

1 points

QUESTION 8

Each ADP molecule contains ________ phosphates, and each ATP molecule contains ________ phosphates.

	a.	three; three
	b.	two; two
	c.	one; two
	d.	two; three
	e.	one; three

1 points

QUESTION 9

Adding a phosphate group to ADP to form ATP is an endergonic reaction.

True

False

1 points

QUESTION 10

The majority of ATP produced during cellular respiration is produced during glycolysis.

True

False

1 points

QUESTION 11

Glycolysis occurs:

	a.	on enzymes located in the inner-membrane.
	b.	in the cytosol.
	c.	in the inner-membrane space.
	d.	in the nucleus of the cell.
	e.	in the matrix of mitochondria.

1 points

QUESTION 12

Muscle soreness associated with strenuous exercise is due to:

	a.	the production of alcohol during anaerobic respiration.
	b.	a buildup of lactic acid.
	c.	an excessive amount of ATP that builds up during exercise.
	d.	the large amounts of CO₂ building up in the muscle.

1 points

QUESTION 13

A required reactant for glycolysis is:

	a.	the electron transport chain.
	b.	carbon dioxide.
	c.	oxygen.
	d.	NAD+.
	e.	mitochondria.

1 points

QUESTION 14

NADH is produced in all of the following except:

	a.	the electron transport chain.
	b.	the Krebs cycle.
	c.	glycolysis.

BIO 161 Lecture Notes - Lecture 3: Endoplasmic Reticulum, Mitochondrial Disease, Citric Acid Cycle

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