BSC 300 Lecture 10: 2-13-18

29 views8 pages

plumtermite154

18 Apr 2018

School

University of Alabama

Department

Biological Sciences

Course

BSC 300

Professor

jenny

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

Important concepts to remember: the citric acid cycle and fatty acid oxidation: Summary of aerobic oxidation of glucose and fatty acids: cytosol: glycolysis. Pyruvate and fatty acyl coa-- diffuse through porins into the mitochondrion. Inner membrane transport proteins-- transport pyruvate and fatty acids into the matrix. Cytosolic nadh electrons shuttled to nad+ in the matrix: mitochondrial matrix: pyruvate dehydrogenation, citric acid cycle and fatty acid oxidation. Pyruvate-- converted to acetyl coa with the formation of nadh and co2 (diffuses out of the mitochondrion and cell) Fatty acyl coa-- two carbons converted to acetyl coa with formation of fadh2 and. Acetyl coa oxidation in the citric acid cycle generates nadh and fadh2, gtp, and co2. Inner membrane: electron transport and proton motive force. Nadh and fadh2 transfer energetic electrons down the electron transport chain. Electrons transferred through electron-transport complexes to o2 (diffuses into cell and mitochodrion matrix)

Related Questions

force times distance

Question 48

Soccer (assuming field player) is a sport which is 90% aerobic.

True

False

Question 50

Glucose is necessary for fatty acid oxidation because...

		its derivative, pyruvate, is condensated with carbonic acid to form oxaloacetate, which in turn is a necessary carbon compound in the citric acid cycle
		it is needed to convert fatty acids to fatty acyl-CoA which in turn is oxidized to acetyl CoA
		glucose is decarboxylated into cytochrome oxidase which is a necessary intermediate in the citric acid cycle
		its derivative, acetyl CoA, is condensated with carbonic acid to form lactase, which in turn is a necessary carbon compound in the citric acid cycle

Question 51

In aerobic ATP production, the role of oxygen is to...

		to keep the electron transport chain operational
		to accept electrons from the 3rd cytochrome and thereby oxidizing it so it can accept new electrons
		act as a oxidizing agent by accepting electrons from the electron transport chain and combining with hydrogen ions (protons)
		all of the above

Question 52

The primary purpose of the citric acid cycle is...

aerobic glycolysis

gluconeogenesis using lactate

the decarboxylation of carbon compounds to produce NADH.

the shuttling of hydrogen ions through the inner mitochondrial membrane

Question 55

Which of the following is the best predictor of marathon running performance?

	A.	Maximal rate of pyruvate oxidation
	B.	Maximal rate of lactate formation
	C.	Amount of adipose tissue triglycerides
	D.	Pre-race blood glucose concentration

emeraldfly517

Question 18

The process that forms new glucose in the liver is called ...

	A.	glycogenolysis
	B.	Krebs cycle
	C.	lipolysis
	D.	gluconeogenisis
	E.	oxidative phosphorylation

Question 57

A person exercises in their âfat burning zoneâ for 4 hours at 35% VO₂peak. The O₂ cost of exercise at that work rate is 0.5L/minute. Following exercise the subject rewards himself with an ice-cream sundae (700kcal). The following statement is true(assume 5kcal/lit of O₂):

	A.	The subject is in neutral energy balance
	B.	The subject consumed fewer calories than they expended during exercise
	C.	The subject consumed more calories than they expended during exercise
	D.	Canât say

Question 52

The primary purpose of the citric acid cycle is...

		aerobic glycolysis
		gluconeogenesis using lactate
		the decarboxylation of carbon compounds to produce NADH.
		the shuttling of hydrogen ions through the inner mitochondrial membrane

Question 51

In aerobic ATP production, the role of oxygen is to...

		to keep the electron transport chain operational
		to accept electrons from the 3rd cytochrome and thereby oxidizing it so it can accept new electrons
		act as a oxidizing agent by accepting electrons from the electron transport chain and combining with hydrogen ions (protons)
		all of the above

Question 50

Glucose is necessary for fatty acid oxidation because...

		its derivative, pyruvate, is condensated with carbonic acid to form oxaloacetate, which in turn is a necessary carbon compound in the citric acid cycle
		it is needed to convert fatty acids to fatty acyl-CoA which in turn is oxidized to acetyl CoA
		glucose is decarboxylated into cytochrome oxidase which is a necessary intermediate in the citric acid cycle
		its derivative, acetyl CoA, is condensated with carbonic acid to form lactase, which in turn is a necessary carbon compound in the citric acid cycle

olivegoat873

Question 1

Which of the following statements regarding photosynthesis and cellular respiration is true?

	A.	Photosynthesis occurs in mitochondria, and cellular respiration occurs in chloroplasts.
	B.	Photosynthesis occurs in chloroplasts, and cellular respiration occurs in mitochondria.
	C.	Photosynthesis occurs in mitochondria and in chloroplasts.

Question 2

How do cells capture the energy released by cellular respiration?

	A.	They produce glucose
	B.	The energy is coupled to oxygen
	C.	They produce ATP

Question 3

During redox reactions

	A.	the loss of electrons from one molecule is called reduction
	B.	electrons are lost from one substance and added to another substance
	C.	protons from one molecule replace the electrons lost from another molecule

Question 4

Oxidation is the ________, and reduction is the ________.

	A.	gain of oxygen; loss of oxygen
	B.	loss of electrons; gain of electrons
	C.	gain of protons; loss of protons

Question 5

During cellular respiration, NADH

	A.	delivers its electron load to the first electron carrier molecule.
	B.	is chemically converted into ATP
	C.	is the final electron acceptor

Question 6

A drug is tested in the laboratory and is found to create holes in both mitochondrial membranes. Scientists suspect that the drug will be harmful to human cells because it will inhibit

	A.	the citric acid cycle only.
	B.	glycolysis only
	C.	the citric acid cycle and oxidative phosphorylation

Question 7

Which of the following metabolic pathways is common in aerobic and anaerobic metabolism?

	A.	glycolysis
	B.	the citric acid cycle
	C.	electron transport chain

Question 8

Which of the following is a result of glycolysis?

	A.	production of CO2
	B.	a net loss of two ATPs per glucose molecule
	C.	conversion of glucose to two three-carbon compounds

BSC 300 Lecture 10: 2-13-18

Document Summary

Get access

Related Documents

BSC 300 Lecture Notes - Lecture 12: Succinic Acid, Dehydrogenation, Adipocyte

BSC 300 Lecture Notes - Lecture 8: Gluconeogenesis, Phosphoglycerate Kinase, Endergonic Reaction

BSC 300 Lecture Notes - Lecture 6: Metabolic Pathway, Pyruvic Acid, Glycolysis

Related Questions