BISC 1005 Mastering Biology chapter 8 Questions and Correct Answers/ Latest Update / Already Graded

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BISC 1005 Mastering Biology chapter 8
Questions and Correct Answers/ Latest Update /
Already Graded
How many NADH are produced by glycolysis?

Ans: 2


In glycolysis, ATP molecules are produced by

Ans: substrate-level phosphorylation


Name products of glycolysis

Ans: NADH + H+, ATP, pyruvate, and water


In glycolysis what starts the process of glucose breakdown?

Ans: ATP


What enters the Krebs cycle also known as the citric acid cycle?

Ans: acetyl CoA


In the citric acid cycle (also called the Krebs cycle), ATP molecules are produced by
_____.

Ans: substrate-level phosphorylation


What are the products of the citric acid cycle (krebs cycle)?

Ans: ATP, NADH + H+, CO2, and FADH2


In cellular respiration, most ATP molecules are produced by _____.

Ans: oxidative phosphorylation

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For each glucose that enters glycolysis, _____ NADH enter the electron transport
chain.

Ans: For each glucose molecule that enters glycolysis, a total of 10 NADH are
produced -- 2 are produced in glycolysis, 2 are produced in acetyl CoA production,
and 6 are produced in the citric acid cycle.


The final electron acceptor of cellular respiration is _____.

Ans: oxygen


During electron transport, energy from _____ is used to pump hydrogen ions into
the _____.

Ans: NADH and FADH2 ... intermembrane space


The proximate (immediate) source of energy for oxidative phosphorylation is _____

Ans: kinetic energy that is released as hydrogen ions diffuse down their
concentration gradient


In muscle cells, fermentation produces _____.

Ans: lactate and NAD+


what is the correct sequence of steps as energy is extracted from glucose during
cellular respiration.

Ans: glycolysis → acetyl CoA → citric acid cycle → electron transport chain


Why do cells convert the energy stored in the bonds of glucose into energy stored
in the bonds of ATP?

Ans: Glucose is not a usable energy source for most enzymes.