Biology - Chapter 6: Cellular Respiration - Quiz
What molecules belong in spaces E and F?
carbon dioxide and water
Because plants do photosynthesis, they are called ____.
producers
Photosynthetic organisms like grass are able to ____.
use substances in the air as a major source of carbon
During electron transport, energy from ____ is used to pump hydrogen ions into the ____.
NADH and FADH2; intermembrane space
During ____, the energy in sugar molecules is used to make molecules of ATP.
cellular respiration
What is the name of the process in which pyruvic acid is the converted to lactic acid?
fermentation
Most of the ATP production during cellular respiration occurs ____.
from activity of the ATP synthase machine
____ is used as food and ____ is produced as a waste in the overall process of cellular respiration.
glucose; carbon dioxide
What process occurs in Box A?
glycolysis
Which of the following processes takes place in the cytosol of a eukaryotic cell?
glycolysis
Which one of the following is considered the oldest mechanism to generate ATP?
glycolysis
An organism that must consume other organisms to obtain nourishment is called a(n) ____.
heterotroph
The proximate (immediate) source of energy for oxidative phosphorylation is ____.
kinetic energy that is released as hydrogen ions diffuse down their concentration gradient
The main function of cellular respiration is ____.
making ATP to power cell activities
In what organelle would you find acetyl CoA formation, the citric acid cycle, and the electron transport chain?
mitochondrion
What organelle is indicated by the letter C?
mitochondrion
Virtually all organisms on Earth use cellular respiration to produce ATP from sugar. ATP is then used to power cellular work. Which of the following is the correct equation for cellular respiration?
sugar + O2 --> CO2 + H2O + ATP
____ is a chemical process that uses light energy from the sun to build organic molecules.
Photosynthesis
Chemical reactions that require oxygen are called ____ while those that do not require oxygen are considered ____.
aerobic; anaerobic
For each glucose that enters glycolysis, ____ NADH enter the electron transport chain.
10
What molecules belong in space A and B?
glucose and oxygen
What process occurs within Box B?
the citric acid cycle
Structure A is ____.
ATP synthase
Which of the following organisms perform cellular respiration?
all of them
What is the correct general equation for cellular respiration?
C6H12O6 + 6 O2 -->6 CO2 + 6 H2O + ATP energy
Which of the following describes cellular respiration?
Oxidation and reduction (redox) reactions are involved in cellular respiration.
Which statement describes the citric acid cycle?
This process produces some ATP and carbon dioxide in the mitochondrion.
Which statement describes glycolysis?
This process splits glucose in half and produces 2 ATPs for each glucose.
Which statement describes the electron transport chain?
This process uses energy captured from electrons flowing to oxygen to produce most of the ATPs in cellular respiration
An organism that can use energy from the sun to directly produce food is called a(n) ____.
autotroph
The compounds needed for photosynthesis are ____ and ____.
carbon dioxide; water
What process occurs in structure H?
photosynthesis
If you exceed your aerobic capacity during a workout, your muscle cells will ____.
switch to anaerobic respiration and produce lactic acid
____ is the high-energy molecule used to power cellular work.
ATP
Autotrophs use photosynthesis to convert the energy of sunlight into the chemical energy of sugar. Which of the following is the correct equation of photosynthesis?
CO2 + H2O + sunlight --> O2 + sugar
Select the correct sequence of steps as energy is extracted from glucose during cellular respiration.
glycolysis acetyl CoA citric acid cycle electron transport chain
Glycolysis occurs in almost all organisms on Earth. From this we might conclude that ____.
glycolysis evolved very early in ancestors that are common to all the domains of life
In cellular respiration, most ATP molecules are produced by ____.
oxidative phosphorylation
A process is referred to as aerobic of it requires ____.
oxygen
Aerobic metabolism always requires ____.
oxygen
The final electron acceptor of cellular respiration is ____.
oxygen
What molecule is indicated by the letter D?
oxygen
During ____, the energy from the sun is used to make sugar molecules.
photosynthesis
Examine the figure above. The carbon used in photosynthesis in the tree shown in the figure comes from ____.
the air