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HHB 1.7 RR Quiz Qs
RR Qs
26
Biology
Not Applicable
03/29/2022

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Term
Name the stage in respiration where glucose is broken down into pyruvate.
Definition
glycolysis
Term
Where does glycolysis take place?
Definition
cytoplasm
Term
Name the stage of glycolysis which uses up 2 ATP.
Definition
energy investment phase
Term
Name the stage of glycolysis which releases 4 ATP.
Definition
energy pay-off phase
Term
What is the net gain of ATP in glycolysis?
Definition
2 ATP
Term
What is glucose needed for in the energy investment phase of glycolysis?
Definition
the phosphorylation of glucose and intermediates
Term
In the presence of oxygen what happens to pyruvate?
Definition
it is broken down to an acetyl group
Term
What forms when acetyl joins to coenzyme A?
Definition
acetyl coenzyme A
Term
What is the role of dehydrogenase enzymes?
Definition
to remove Hyrogen ions and electrons and pass them to NAD, forming NADH
Term
In which of the stages of aerobic respiration do dehydrogenase enzymes remove hydrogen ions and electrons and pass them onto NAD?
Definition
glycolysis & citric acid cycle
Term
What is the location of the citric acid cycle?
Definition
the matrix of the mitochondria
Term
What does the acetyl group join with to form citrate?
Definition
oxaloacetate
Term
What does the citrate get converted to through a series of enzyme controlled reactions in the citric acide cycle?
Definition
oxaloacetate
Term
Name the substances released from the citric acid cycle.
Definition
ATP, Carbon dioxide, Hydrogen ions and electrons
Term
What is the location of the electron transport chain?
Definition
inner membrane of the mitochondria
Term
What carries the hydrogen ions and electrons to the electron transport chain?
Definition
NAD / NADH
Term
What is released when electrons are passed along the electron transport chain?
Definition
energy
Term
What is the electron tranport chain?
Definition
a series of carrier proteins attached to the inner mitochondrial membrane
Term
What is the energy from the electron transport chain used for?
Definition
to pump Hyrogen ions across the inner membrane
Term
Through which protein do the hydrogen ions flow when returning to the matrix of the mitochondria?
Definition
ATP synthase
Term
What is the role of ATP synthase?
Definition
regenerate / make ATP
Term
What is the final acceptor of Hydrogen ions and electrons?
Definition
Oxygen
Term
What are the two waste products of aerobic respiration?
Definition
water and carbon dioxide
Term
What are the two raw materials of aerobic respiration?
Definition
glucose and oxygen
Term
In which stage of respiration is the majority of ATP synthesised?
Definition
electron transport chain
Term
Name three cellualr processes that require ATP.
Definition
DNA replication, protein synthesis, muscle contraction, mitosis, meiosis, nerve impulse transmission
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