Cellular Respiration Quiz: Learn and Practice for Free

cellular respiration quiz

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Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products. – wikipedia

Cellular Respiration Quiz

Cellular Respiration

Quiz Questions

1) During which step is H2O formed?

  • glycolysis
  • krebs cycle
  • ETC
  • fermentation

2) During which step is CO2 produced?

  • glycolysis
  • krebs cycle
  • ETC
  • fermentation

3) During which step is O2 (oxygen) used?

  • glycolysis
  • krebs cycle
  • ETC
  • fermentation

4) During which step is glucose broken down?

  • glycolysis
  • krebs cycle
  • ETC
  • fermentation

5) Which step produces the most NADH and FADH2?

  • glycolysis
  • krebs cycle
  • ETC
  • fermentation

6) Which is the correct order of the steps of cellular respiration

  • glycolysis > krebs cycle > ETC
  • glycolysis > ETC > krebs cycle
  • krebs cycle > ETC > glycolysis
  • ETC > glycolysis > krebs cycle

7) Which step provides the most ATP?

  • glycolysis
  • krebs cycle
  • electron transport chain
  • fermentation

8) Which type of fermentation do people do?

  • Lactic acid fermentation
  • alcohol fermentation

9) Which type of respiration is most efficient?

  • Aerobic
  • Anaerobic

10) The energy in ATP is stored

  • in the bond between the second and third phosphate
  • in the bond between the first and second phosphate
  • in the bond between the adenosine and the first phosphate
  • I like turtles

11) Where does anaerobic respiration occur?

  • glucose molecule
  • mitochondria
  • cytoplasm

12) Glycolysis results in a net gain of how many ATP?

  • 0
  • 2
  • 4
  • 1

13) Which molecule isn’t an energy carrier?

  • FADH2
  • NADH
  • oxygen
  • ATP

14) What is cellular respiration?

  • the breakdown of glucose  to release ATP
  • the breakdown of glucose to release NADH
  • the breakdown of glucose to release FADH
  • the breakdown of glucose to release carbon

15) Cellular Respiration’s goal is to

  • make water
  • make ATP
  • make glucose
  • make  oxygen

16) Where does the Krebs Cycle take place?

  • mitochondria
  • chloroplast
  • cytoplasm
  • nucleus

17) What is the correct equation for cellular respiration?

  • 6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy
  • 6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O
  • 6CO2 + 6H2O -> 6O2 + C6H12O6 + Energy
  • 6CO2 + 6H2O + Energy -> 6O2 + C6H12O6

18) What are the reactants in the equation for cellular respiration?

  • oxygen and lactic acid
  • carbon dioxide and water
  • glucose and oxygen
  • water and glucose

19) In which way are photosynthesis and cellular respiration different?

  • Cellular respiration stores ATP, while photosynthesis releases ATP.
  • Cellular respiration produces oxygen, while photosynthesis uses oxygen.
  • Photosynthesis releases energy, while cellular respiration stores energy.
  • Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.

20) How many ATP are produced in aerobic respiration?

  • 2
  • 33
  • 4
  • 36

21) The mitochondria is responsible for …

  • photosynthesis
  • anaerobic respiration
  • aerobic respiration
  • fermentation

22) The expression “feel the burn” means that a person exercising is doing

  • lactic acid fermentation
  • alcoholic fermentation
  • photosynthesis
  • aerobic respiration

23) What is the molecule called that mitochondria produce when they respire glucose?

  • ATP
  • ADP
  • DNA
  • 80p

24) What type of respiration requires oxygen?

  • Aerobic
  • Anaerobic

25) What are the products of aerobic respiration?

  • Glucose and oxygen
  • Carbon dioxide and water
  • Lactic acid
  • Carbon monoxide

26) What happens to your breathing rate when you exercise?

  • It increases
  • It decreases
  • It stays the same

27)  A plant is releasing a gas. What is the mosl tlikely the gas?

  • co2
  • methane
  • water vapor
  • oxygen

28)  ______________ produces the most ATP.

  • photosnthesis
  • aerobic respiration
  • anaerobic respiration
  • glycolysis

29) What is one of the reactants of cellular respiration?

  • energy
  • glucose
  • carbon dioxide
  • water

30) All living things do which of the following?

  • Chemosynthesis
  • Respiration
  • photosynthesis
  • all of the answers

31) If oxygen is not present, this step will happen after glycolysis

  • Krebs cycle
  • Electron Transport Chain
  • Fermentation

Terms and Answers to Learn

cellular respiration
the process in which cells make ATP by breaking down organic compounds
photosynthesis
the process in which autotrophs convert light energy into chemical energy
which types of organisms undergo cellular respiration
both autotrophs and heterotrophs
what happens when organic compounds are broken down into simpler compounds
energy is released
what is the energy released by the organic compound mostly used to do
produce ATP
the products of cellular respiration (3)
CO2, water, and ATP
two stages of cellular respiration
glycolysis and aerobic respiration
glycolysis
a biochemical pathway in which one six-carbon molecule of glucose is oxidized to produce two three-carbon molecules of pyruvic acid
how photosynthesis and cellular respiration depend on each other
the products of photosynthesis are the reactants of cellular respiration, and the reactants of photosynthesis are the products of cellular respiration
anaerobic
does not require the presence of oxygen
aerobic respiration
pyruvic acid is broken down and NADH is used to make lots of ATP
what pyruvic acid undergoes with no oxygen present
fermentation
fermentation
the breakdown of pyruvic acid by enzymes, bacteria, yeasts, or mold in the absence of oxygen
type of reaction in cellular respiration
redox
redox reaction
one reactant loses electrons and another gains electrons
cellular respiration equation
C6H12O6+6O2—> 6CO2+6H2O+ATP
where the reactions of glycolysis take place
cytosol
step one glycolysis
two phosphate groups are attached to one molecule of glucose, ATP converted to ADP
step two glycolysis
6-carbon molecule split into two 3-carbon molecules of G3P
step three glycolysis
G3P molecules lose electrons and receive another phosphate group, two molecules of NAD+ converted into NADH
step four glycolysis
all phosphate groups are removed from the molecule to make two molecules of pyruvic acid, the four released phosphates convert four ADP to four ATP
net yield of ATP in glycolysis
2 ATP
total ATP produced in glycolysis
4 ATP
how many NADH molecules produced in glycolysis
2 NADH
how NAD+ becomes NADH
electrons released through glycolysis attach to NAD+
where pyruvic acid goes if there’s no oxygen
fermentation
what fermentation regenerates
NAD+
what fermentation does not produce
ATP
how various fermentation pathways differ (2)
enzymes and products
the two common fermentation pathways products
lactic acid and ethyl alcohol
lactic acid fermentation
pyruvic acid is converted into lactic acid
what is used to make lactic acid
one hydrogen atom from NADH and one free hydrogen proton
what happens to NADH in lactic acid fermentation
it is oxidized and converted to NAD+
type of reaction that occurs in muscles during strenuous exercise
lactic acid fermentation
organ where lactic acid is converted back into pyruvic acid
liver
the liver
where lactic acid is converted back into pyruvic acid
how many carbons in lactic acid
3
alcoholic fermentation
pyruvic acid is converted into ethyl alcohol
organisms that use alcoholic fermentation
plant cells and unicellular organisms
process of alcoholic fermentation (2 steps)
CO2 is removed from pyruvic acid, two hydrogen atoms added
what is regenerated in alcoholic fermentation
NAD+
one kilocalorie=? calories
1000
efficiency of glycolysis=
energy required to make ATP/energy released by oxidation of glucose
where pyruvic acid goes when oxygen is available
aerobic respiration
aerobic respiration produces ?x as much ATP as glycolysis
20
two stages of aerobic respiration
the Krebs cycle and the electron transport chain
chemiosmosis
process by which ATP is made using the energy released as protons move across a memrbrane
as glucose is oxidized NAD+ is…
converted into NADH
the Krebs cycle, function
breaks down acetyl CoA
where the Krebs cycle takes place (eukaryotes)
the mitochondria
where the Krebs cycle takes place (prokaryotic)
None
mitochondrial matrix
the space inside the inner and outer membranes of a mitochondrion
what the mitochondrial matrix contains
enzymes to catalyze the reactions of the Krebs cycle
in the mitochondrial matrix, pyruvic acid reacts with ? to form ?, and releases a ?
CoA, acetyl CoA, CO2 molecule
products of the Krebs cycle (3)
CO2, hydrogen atoms, and ATP
final electron acceptor of ETC
oxygen
efficiency of cellular respiration=
energy required to make ATP/energy released by oxidation of glucose

 

Cellular Respiration Overview – Khan Academy

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