The total amount of ATP that a cell gains for each glucose molecule depends on the presence of

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Biology I Chapter 9 Pretest
How many ATP molecules per glucose molecule does a cell gain from each?
What is the total number of ATP is derived in the process?
What is the total gain of ATP during the conversion of glucose to pyruvate?
How many ATP results from the complete metabolism of a molecule of glucose?

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Biology I Chapter 9 Pretest

Question	Answer
All organisms need _______ to carry out all life processes	energy
________ is the process by which plants use sunlight to make organic compounds from carbon dioxide and water.	photosynthesis
Autotrophs make _________ compounds that serve as food for them and for almost all of the other organisms on Earth	organic
______ is a process that takes place in autotrophs	photosynthesis
_______ involves using energy to build organic molecules and breaking down organic molecules in which energy is stored	metabolism
Photosynthesis coverts stable carbon dioxide molecules into _________, a less stable carbon compound	glucose
Through the process of cellular respiration, cells make carbon in glucose into stable carbon dioxide and produce _________	energy
_____ is the portable form of energy "currency" inside cells	ATP
In cells, chemical energy is gradually released in a series of chemical ______ that are assisted by enzymes	reactions
The major light-absorbing pigment in plant photosynthesis is ______	chlorophyll
Plant cells use light energy to make ATP and _________	NADPH
Plants get electrons to replace the excited electrons that leave chlorophyll molecules by splitting _________	water
The final stage of photosynthesis during which sugar molecules are produced is light ____________	independent
The reactions that "fix" carbon dioxide are sometimes called _________	dark reactions
Most of the three-carbon sugars formed during the _______cycle are used to regenerate the five-carbon compound that began the cycle	Calvin
______ concentration is one of the environmental factors that affect photosynthesis	Carbon dioxide
Increasing light intensity increases the rate of photosynthesis only until all the ________ in chloroplasts are being used	pigments
Glycolysis breaks down glucose into two _________	pyruvates
Glycolysis occurs during the ______ stage of cellular respiration	first
Glycolysis is an ________ process	anaerobic
During aerobic respiration, the breakdown of a molecule of glucose yields a net of up to ____ molecules of ATP	36
The first stage of aerobic respiration is a series of biochemical reactions called the ______cycle	Krebs
Fermentation takes place in absence of ______	oxygen
Lactic acid fermentation is a _____ process	anaerobic
Which of the following is the best explanation for the presence of both chloroplasts and mitochondria in plant cells?	Sugars are produced in chloroplasts. These sugars can be stored and used by the mitochondria to produce ATP
How many carbon dioxide molecules are produced during the cellular respiration of two glucose molecules?	twelve
At a hydrogen ion pump of the thylakoid membrane,	energy from electrons is used to make ATP
ATP is composed of a nitrogenous base, a sugar, and	three phosphate groups
The series of molecules that cause protons to build up on one side of a membrane is a(n)	electron transport chain
eye pigments: sight ::	chlorophyll : photosynthesis
Carbon dioxide is converted into organic compounds in the	Calvin Cycle
When a phosphate group is removed from an ATP molecule	a substantial amount of energy is released
ATP is called a cell's energy "currency" because	ATP can be "made" in one place and "spent" or used in another
In aerobic respiration, a two-carbon molecule combines with a four-carbon molecule as part of	the Krebs cycle
While one type of electron transport chain of photosynthesis is used to form molecules of ATP, a second electron transport chain is used	to form molecules of NADPH
Water in an end product in	the electron transport chain in aerobic respiration
The carbon cycle makes carbon compounds continuously available in an ecosystem and delivers	chemical energy to organisms within the ecosystem
Organisms that are NOT autotrophs	must consume other organisms to get energy
The major atmospheric by-product of photosynthesis is	oxygen
photosynthesis : oxygen ::	cellular respiration : carbon dioxide
Cellular respiration takes place in two stages:	glycolysis, then aerobic respiration
When electrons of a chlorophyll molecule are raised to a higher energy level, they	are transferred to an electron carrier
The space inside the inner membrane of a chloroplast is called the	stroma
light energy : excite electrons ::	ATP and NADPH : carbon dioxide fixation
Which of the following processes produces the most ATP?	aerobic respiration
An enzyme that catalyzes the synthesis of ATP is	ATP synthase
The source of oxygen produced during photosynthesis is	water
chloroplasts : photosynthesis ::	mitochondria : cellular respiration
Which of the following organisms do NOT carry out photosynthesis	animals
When cells break down food molecules, energy is	stored temporarily in ATP molecules
Hydrogen ion pumps found in the thylakoid membranes are directly responsible for	providing the energy to produce ATP molecules
Which of the following is NOT part of cellular respiration	Calvin cycle
Products of the light reactions of photosynthesis that are required by the dark reaction are	ATP and NADPH
Which of the following statements about glucose is correct?	Glucose is a less stable carbon compound that carbon dioxide is.
When glycolysis occurs,	a molecule of glucose is split
Which of the following is not formed during the Krebs Cycle?	NADPH
The total amount of ATP that a cell gains for each glucose molecule depends on the presence of	oxygen
The process of cellular respiration	breaks down food molecules to release stored energy
NADPH is important in photosynthesis because it	provides high-energy electrons needed to store energy in organic molecules
In the second stage of aerobic respiration, what happens to the electrons that have been depleted of their energy during ATP production?	They combine with oxygen and hydrogen ions to form water
Which of the following is NOT true about the dark reactions of photosynthesis?	use water as an electron source
The energy used in the Calvin Cycle for the production of sugar molecules comes from	ATP and NADPH
Which of the following enables plants to convert light energy to chemical energy?	hydrogen ion pumps
Chlorophyll is green because	it reflects green wavelengths of light
Because of photosynthesis,	the atmosphere is rich in oxygen gas
What is the net gain of ATP molecules in glycolysis?	2
The final electron acceptor in aerobic respiratoin	oxygen
The thylakoid membrane is folded in a way that produces flat, disc-like sacs called ________	thylakoids

How many ATP molecules per glucose molecule does a cell gain from each?

In aerobic respiration, one glucose molecule results in a net ATP gain of 38 ATP. It comprises ATP generated during glycolysis, the link reaction, the TCA cycle, and oxidative phosphorylation in the electron transport system.

What is the total number of ATP is derived in the process?

Therefore, a total of 38 ATP molecules are obtained at the end of every respiration cycle in a cell.

What is the total gain of ATP during the conversion of glucose to pyruvate?

2 molecules of ATP are utilised in the glycolysis. One molecule of ATP is utilised when glucose is converted to glucose-6-phosphate and the other is utilised when fructose-6-phosphate is converted to fructose-1,6-bisphosphate. So, the net gain of ATP molecules during glycolysis is 2.

How many ATP results from the complete metabolism of a molecule of glucose?

The complete breakdown of one glucose yields 36 ATP molecules in eukaryotic organisms. The electron transport system requires oxygen in order to function properly.

The total amount of ATP that a cell gains for each glucose molecule depends on the presence of

Biology I Chapter 9 Pretest

How many ATP molecules per glucose molecule does a cell gain from each?

What is the total number of ATP is derived in the process?

What is the total gain of ATP during the conversion of glucose to pyruvate?

How many ATP results from the complete metabolism of a molecule of glucose?

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