chapter 7 cellular respiration

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how many ATP are produced from the Krebs cycle?

2

how many ATP come from glycolysis?

2

how many times do you go through the Krebs cycle?

2

how many total ATP are produced in the electron transport chain?

32

what is the total net yield of ATP from one molecule of glucose?

36

how many Total ATP molecules are produced from the glycolysis of one six carbon glucose?

4 total

the carriers for energy and Chi energy electrons during glycolysis are what?

ATP AND NADH

what are the end products of the electron transport chain?

ATP and water

what is made in the Krebs cycle?

ATP, fadh2, CO2, nadh

what are the energy containing products of glucose?

ATP, nadh, and pyruvate

what are the end products of the Krebs cycle?

ATP- 1 (2) FADH2- 1 (2) NADH- 3 (6) CO2- 2 (4)

a series of reactions in which part of it is broken down into carbon dioxide is what cycle?

Krebs cycle

what high-energy electron carrier is regenerated during fermentation that allows cells to continue to make ATP using glycolysis?

NAD+

two molecules of ATP and two molecules of ______ are formed from every glucose molecule that is broken down.

NADH

the mitochondria is sometimes referred to as the what

Powerhouse

a process that requires oxygen is

aerobic

because cellular respiration requires oxygen it is said to be

aerobic

what types of organisms utilize cellular respiration?

all types of organisms

is glycolysis aerobic or anaerobic?

anaerobic

since fermentation does not require oxygen it is

anaerobic

what gas is produced in the transition reaction?

carbon dioxide

organisms obtain energy in a process called

cellular respiration

where does glycolysis occur?

cytoplasm

where does glycolysis take place?

cytoplasm

where in the cell do the reactions of cellular respiration occur?

cytoplasm and the mitochondria

what stage of cellular respiration produces the most ATP?

electron transport and chemiosmosis

ATP is used to provide ______ for cells to do work.

energy

true or false the hydrogen necessary in the electron transport chain comes from the splitting of carbon dioxide molecules.

false NADH and FADH2 come from the splitting of molecules

true or false electron transportation is the first step in the breakdown of glucose

false, It's the final step

true or false alcohol fermentation is found in some bacteria and in humans.

false, bacteria and in yeast

true or false fermentation occurs in the mitochondria.

false, it occurs in the cytoplasm

if oxygen is not present, glycolysis is followed by

fermentation

what is split in glycolysis?

g3p

in glycolysis what is broken down into pyruvate?

glucose

cellular respiration harvests electrons from carbon compounds, such as ______ and uses the energy to make_______.

glucose, ATP

what is the first step in cellular respiration that begins releasing energy stored in glucose?

glycolysis

where does the electron transport chain occur?

inner membrane

what is FAD

it's another electron carrier similar to NAD and nadp

what fermentation do humans go through?

lactic acid fermentation

aerobic respiration takes place in the_________.

mitochondria

where does the transition reaction occur?

mitochondria

where does the Krebs cycle occur?

mitochondrial matrix

an anaerobic process does not require_______.

oxygen

what gas is used in the electron transport chain?

oxygen

during glycolysis, glucose is what?

partially broken down and some of its stored energy is released

what is cellular respiration?

process in which organic compounds are broken down by cells to release energy to make ATP.

name the 3 carbon molecule produced when glucose is broken down in half during glycolysis

pyruvate

what is lactic acid fermentation?

pyruvate is converted into lactic acid

what is alcohol fermentation?

pyruvate is converted to ethyl alcohol and carbon dioxide.

what are the end products of glycolysis?

pyruvate, ATP, and nadh

lactic acid fermentation occurs in ______ ______ cells.

skeletal muscles

what chain pumps protons into the space between the inner and outer mitochondrial membranes?

the electron transport chain

why does fermentation occur?

there's no Oxygen

what is the main purpose of fermentation?

to regenerate NAD+ to be used in Glycolysis

true or false skeletal muscle produces lactic acid when the body cannot supply enough oxygen.

true

true or false the Krebs cycle is sometimes called the TCA cycle or the citric acid cycle.

true

true or false the anaerobic pathway that follows glycolysis in the absence of oxygen is fermentation.

true

true or false the two pyruvate molecules formed during glycolysis result in two Krebs Cycles

true

why is there a net gain of only two ATP molecules in the glycolysis of one six-carbon glucose?

two are needed to repay to start

what substance is made during the electron transport chain?

water

alcohol fermentation occurs in

yeast and bacteria


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