Citric Acid Cycle

Where does the Kreb's cycle take place in the cell?

• Cytoplasm

• in the space between two mitochondrial membranes

• in the matrix of mitochondria

• in the endoplasmic reticulum

Tags

NGSS.HS-LS1-7

Cellular respiration is the set of metabolic reactions that occur in cells to produce energy in the form of ATP. During cellular respiration, high energy intermediates are created that can then be oxidized to make ATP. During what stage are these intermediates produced?

• Oxidative phosphorylation

• glycolysis

• citric acid cycle

• glycolysis and citric acid cycle

A NADH molecule produces ________ ATP molecules in the elctron transport system.

• 1

• 2

• 3

• 4

________________ released during the citric acid cycle.

• Water

• Carbon dioxide

• Ethnaol

• Methane

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

NGSS.HS-LS2-5

Most enzymes that take part in Kreb's cycle are located in/on the_______________.

• the cell membrane

• cytoplasm of the cell

• matrix of mitochondrai

• outer membrane of mitochondria

How many ATP molecules are produced when one molecule of Acetyl-CoA enters the citric acid cycle?

• 10

• 12

• 14

• 16

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

How many FADH molecules are produced in the citric acid cycle when two acetyl CoA molecules enter ?

• 1

• 2

• 3

• 4

How many NADH molecules are produced in the citric acid cycle when one Acetyl-CoA enters?

• 3

• 6

• 9

• 12

Pyruvate, the end product of glycolysis, enters the citric acid cycle after it has is converted to _____________.

• Iso-citrate

• Fumerate

• Acetyl-CoA

• Acetaldehyde

How many NADH are produced when two pyruvate molecules are converted to two acetyl-CoAs?

• 2

• 4

• 6

• 8