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WorksheetsAP Biology - Cellular Respiration
Total questions: 52
Worksheet time: 42mins
Where does the electron transport chain take place?
chloroplasts
prokaryotic plasma membrane
mitochondria
all of the choices
Which of the following are electron carriers for the electron transport chain in cellular respiration?
NADPH
FADH2
NADH
NADH & FADH2
Which process releases energy in glucose to form ATP, NADH, and pyruvate?
Glycolysis
Oxidative Phosphorylation
Krebs Cycle
Fermentation
What is oxidation?
loss of electrons
loss of water
gain of electrons
gain of water
In the electron transport chain of cellular respiration, where is the electrochemical gradient of protons generated?
cytosol
cristae
matrix
intermembrane space
Which process does NOT require oxygen?
Glycolysis
Oxidative Phosphorylation
Krebs Cycle
Aerobic respiration
The point of the Krebs Cycle is to...
Produce high amounts of ATP using a proton gradient
Move high energy electrons through series of proteins to eventually bind with O2, creating water and protons
Break down pyruvate to produce electron carrier molecules, FADH2 and NADH, as well as CO2 and ATP as byproducts
Use ATP and NADPH to produce 6 carbon sugars
Chemiosmosis is best described as...
Moving high energy electrons through carrier molecules toward oxygen
The use of a proton gradient to power ATP Synthase and produce ATP
The breakdown of pyruvate into electron carrier molecules
The enzyme that combines ADP and inorganic phosphate to produce ATP
What is true of glycolysis?
produces a net of 2 ATP
occurs in the mitochondria
produces ATP through oxidative phosphorylation
produces 34ish ATP
all other choices are true
What serves as the final acceptor of the electrons moving down the ETC during cellular respiration?
sulfur
carbon dioxide
ATP
oxygen
Which organisms go through cellular respiration?
[CHOOSE ALL THAT APPLY!]
animals
plants
bacteria
fungi
Which molecule is the reactant of Glycolysis?
water
glucose
carbon dioxide
ATP
What's the chemical formula for glucose?
6C6HO6
C12H6O12
C6H12O6
CHO
The Electron Transport Chain is a series of chemical reactions in which energy is transferred to form a large amount of what molecule?
glucose
oxygen
pyruvic acid
ATP
What type of respiration requires oxygen?
Aerobic
Anaerobic
Select ALL the products of Cellular Respiration?
[CHOOSE ALL THAT APPLY!]
oxygen
glucose
carbon dioxide
water
ATP (energy)
True or False: Only animals can undergo Cellular Respiration.
True
False
What type of respiration does not require oxygen?
Aerobic
Anaerobic
Glycolysis splits glucose into two molecules of pyruvate. How many carbon atoms are in one molecule of pyruvate?
Which of the following is not an end product of the Kreb's cycle?
NADH
CO2
pyruvate
ATP
How does the amount of energy resulting from fermentation compare with that of aerobic respiration?
Aerobic respiration results in less energy.
Aerobic respiration results in more energy.
Each process results in equal amounts of energy.
Neither process produces energy
Which of the following is a product of the Electron Transport Chain?
CO2
O2
C6H1206
H2O
What are the products for the first step of Cell Respiration? (what comes out of step #1)
Pyruvate, NADH, and 2 ATP
CO2, NADH, FADH, and 2 ATP
H2O and 34 ATP
What does it mean to phosphorylate ADP?
To add P, to ADP forming ATP and increasing the free energy of the molecule
Removing a P, from ADP to become AMP and release energy
ADP is being used to power other reactions
ADP is being created by the reaction
Which of the following statements are false?
Glycolysis does not require oxygen
Glycolysis is the first step in both anaerobic and aerobic respiration
Glycolysis occurs in the mitochondria
Glycolysis produces 2 ATP, 2 Pyruvates, and 2 NADH
What is cellular respiration?
the catabolism of glucose to transfer energy to ATP
the breakdown of glucose to release NADH
the breakdown of glucose to release FADH
the breakdown of glucose to release carbon
The Electron Transport Chain (ETC) occurs across the ________ and so extra folds called ________ enable it to occur more often
Mitochondrial matrix, villi
Outer mitochondrial membrane, flagella
Inner mitochondrial membrane, cristae
Cytoplasm, endoplasmic reticulum
During chemiosmosis
H+ ions serve as the final electron acceptor
a concentration gradient is generated when H+ ions are passively transported from the matrix to the inner mitochondrial membrane
energy is released as H+ ions move freely across the mitochondrial membrane
ATP is synthesized when H+ ions move through a channel in ATP synthase
It is possible for both prokaryotes and eukaryotes to perform glycolysis because it occurs in the _____________
mitochondrial matrix
inner membrane
cytoplasm
cell membrane
Anaerobic respiration yields about ______ ATP per glucose whereas aerobic respiration yields about _______ ATP per glucose.
38, 2
2, 38
2, 18
18, 2
The electrons that transfer energy to pump protons across the inner mitochondrial membrane were supplied by
ATP and NADPH
NADH and FADH2
water and oxygen
Which reaction moves the cellular respiration process from the cytoplasm to the mitochondria?
glycolysis ---> pyruvate
pyruvate ---> acetyl CoA
acetyl CoA ---> PGA
PGA ---> PGAL
Without (a) , the electron transport chain cannot function, as there isn't a strongly electronegative molecule at the end to pull the electrons down the chain.
The NADH generated in glycolysis will eventually head to ...
the citric acid cycle
the electron transport chain
pyruvate oxidation
the chloroplast
After glycolysis, pyruvate will go ...
from the cytoplasm to the mitochondrial matrix
from the cytoplasm to the mitochondrial membrane
from the mitochondrial matrix to the cytoplasm
from the mitochondrial membrane to out of the cell
Which steps of respiration occur in the mitochondria?
[CHOOSE ALL THAT APPLY!]
glycolysis
pyruvate oxidation
citric acid cycle
electron transport chain & oxidative phosphorylation
A toxin is introduced that blocks the passage through ATP synthase. Which effects below are likely to occur?
[CHOOSE ALL THAT APPLY!]
ATP production will decrease significantly
the inner membrane space will get more acidic
the inner membrane space will get more basic
the matrix will get more acidic
the ETC will shut down
If an atom gains electrons during a chemical reaction, the atom was:
Catabolized
