BSC1005 Ch 6 & 7
About _________ of the energy produced by your body each day is used to sustain your brain.
20%
Which of the following are needed for the Calvin cycle?
ATP, NADPH, and carbon
Compare the electron transfer process of photosynthesis with the electron transfer chain of cellular respiration. Which of the following are similarities?
All of the listed responses are similarities.
While serving as a visiting professor on the planet Freedonia, with infinite resources available to you, you decide to try implanting mitochondria into alien bacterial cells that can perform only glycolysis. Assuming your experiment is successful, what result would you predict?
An increase in ATP yield per glucose molecule
What is an autotroph?
An organism that utilizes light energy or inorganic compounds to meet their energy requirements
_________________ occurs when ________________.
Anaerobic respiration; oxygen is not present
Which wavelength(s) of light is/are best absorbed by the chlorophyll in plants?
Blue and red
What do cell respiration and photosynthesis have in common?
Both produce (and use) ATP.
What are the reactants for photosynthesis?
CO2 and H2O
What is the difference between the use of the terms cellular respiration and respiration in biology?
Cellular respiration refers only to the breakdown of energy-rich molecules to produce ATP; respiration can refer to breathing.
Using the energy from light, what is the initial electron donor in photosynthesis?
Chlorophyll
Which stage is responsible for completing the breakdown of glucose all the way to CO2 which is then released as a waste product?
Citric acid cycle
Match the following step of cellular respiration with the appropriate outputs.
Citric acid cycle - 2 CO2, ATP, 3 NADH, FADH2
Which stage of cellular respiration yields the greatest amount of ATP?
Electron transport chain
What is the role of fermentation in muscle metabolism?
Fermentation ensures a steady supply of NAD+ for proper glycolytic functioning during periods of low oxygen levels in muscles.
Which of the following depicts the correct order of how molecules move through cellular respiration?
Glucose ->pyruvic acid -> acetic acid -> acetyl CoA
Which molecules can be broken down to generate ATP?
Glucose,Fats,Proteins,Glycerol = All of the listed responses are correct.
In which stage of cellular respiration is acetyl-coA produced?
Glycolysis
Which stage of cellular respiration takes place in the cytosol?
Glycolysis
What is the correct order of cellular respiration?
Glycolysis -> citric acid cycle -> electron transport chain
Which of the following allows for ATP to be produced with the electron transport chain?
H+ concentration gradient
What is a difference between fermentation in human muscles and fermentation in yeast?
In human muscle cells lactic acid is produced, while yeast produces ethyl alcohol.
Where is chlorophyll found in chloroplasts?
In thylakoids
Not all of the energy harvested during the chemical breakdown of food molecules is captured and stored in ATP. What happens to the rest of the energy?
It is released as heat.
What is a true statement about cellular respiration?
It occurs in both producers and consumers.
Which of the following is false about glycolysis?
It requires oxygen.
Which of the following is not produced by yeast fermentation?
Lactic acid
What part of a plant can be termed its "food factory"?
Leaves
What are the products of photosynthesis?
O2 and glucose
Which of the following occurs in the first photosystem?
Photons excite electrons for transfer to an electron transport chain
Which of the following is the process that ultimately feeds the world?
Photosynthesis
Which metabolic pathways directly involve oxygen?
Photosynthesis and the electron transport chain
What is the end result of the Calvin cycle?
Produces sugar
When oxygen is released as a result of photosynthesis, what is its source?
Splitting of H2O
A plant requires which of the following for growth?
Sunlight
What provides the energy to drive the photosynthesis chemical reaction?
Sunlight
What pathway in photosynthesis captures carbon dioxide?
The Calvin cycle
What is cellular respiration?
The aerobic harvesting of chemical energy from organic fuel molecules
Why are leaves green?
The chlorophyll and other pigments reflect green light while absorbing other light.
How are photosynthesis and cellular respiration connected?
The products of photosynthesis are the reactants in cellular respiration and vice versa.
Why are protons (H+) pumped across the inner mitochondrial membrane?
Their movement back across the membrane generates ATP.
What do glycolysis and the citric acid cycle have in common?
They both produce 2 ATP
How is breathing related to cellular respiration?
When you inhale you breathe in O2 which is delivered to your cells and is used during cellular respiration. CO2 is a waste product of cellular respiration and is exhaled.
Photosynthetic organisms include __________.
both protists and bacteria
The mass of a plant comes from __________.
carbon
The preferred source of energy for glycolysis is ___________.
glucose
Which of the following depicts the correct order of the light reactions of photosynthesis?
light capture -> electron excitation -> electron transport -> making ATP -> making NADPH
A drug that blocks the electron transport chain would probably cause the organism to ___________.
make insufficient ATP to survive
The citric acid cycle is considered a cycle because __________.
the last product is used in the first reaction to start the cycle over again
Stroma is the __________.
thick fluid found inside the chloroplast
