Name: ________________________________________________________ Date: _________________
CELLULAR RESPIRATION
MULTIPLE CHOICE: Cell Respiration.
1.
_______________________ is the first step in cellular respiration that begins releasing energy stored in glucose.
a. Alcoholic fermentation
b. Lactic acid fermentation
c. Glycolysis
d. Electron transport chain
2.
If oxygen is NOT present, glycolysis is followed by _____________________
a. Krebs cycle
b. Electron Transport Chain
c. Calvin cycle
d. Fermentation
3.
Since fermentation does not require oxygen it is said to be __________________.
a. Aerobic
b. Anaerobic
c. Glycolitic
d. Ionized
4.
Which is not a product of glycolysis?
a. Pyruvate
b. Carbon Dioxide
c. ATP
d. NADH
5.
I.
II.
III.
IV.
Which of the following are products of fermentation?
Pyruvate
Carbon Dioxide
ATP
NADH
A. II, III, V, VI
6.
I.
II.
III.
IV.
III, V, VI
B. III, IV, VII
Ethanol or Lactic Acid
NAD+
FADH2
FAD
C. II, III, IV, V
Which of the following are products of the Kreb Cycle?
Pyruvate
Carbon Dioxide
ATP
NADH
A.
7.
I.
II.
III.
IV.
B. I, II, III, IV
V.
VI.
VII.
VIII.
V.
VI.
VII.
VIII.
C. I, II, IV
D. I, V, VI, VII
Ethanol or Lactic Acid
NAD+
FADH2
FAD
D. V, VI, VII
Which of the following are products of the electron transport chain?
Pyruvate
V. Ethanol or Lactic Acid
Carbon Dioxide
VI. NAD+
ATP
VII. FADH2
NADH
VIII. FAD
A.
I, III, V
B. , II, III, IV
C. II, III, V,
D. III, VI, VIII
CELLULAR RESPIRATION VOCABULARY REVIEW
1.
__ __ __ __ __ __ __ __ __ __ is a 6 carbon molecule that is produced first when acetyl-CoA joins with a 4 carbon
molecule to enter the Krebs cycle.
2.
__ __ __ __ __ __ __ __ __ __ is the process of splitting a glucose molecule into 2 pyruvic acid molecules.
3.
The molecule used by cells to store and transfer energy is __ __ __.
4.
Glycolysis happens outside the mitochondria in the __ __ __ __ __ __ __ __ __ of the cell.
5.
__ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ happens when oxygen is present and includes glycolysis,
Krebs cycle, and Electron transport.
6.
This describes a process that requires oxygen = __ __ __ __ __ __ __
7.
This high energy electron carrier produces fewer ATP’s than NADH as its electrons pass through the Electron
Transport Chain because it enters farther down the chain
a.
=__ __ __ __ __
8.
This atmospheric gas is required for aerobic respiration = __ __ __ __ __ __.
9.
This describes a process that does NOT require oxygen; it means “without air”
a.
= __ __ __ __ __ __ __ __ __
10. Product of fermentation made by human muscles in low oxygen conditions and microorganisms to make yogurt,
cheese, pickles, sauerkraut and kimchi. = __ __ __ __ __ __ __ __ __ __
11. As electrons pass down the electron transport chain, H+ ions build up in the
a.
__ __ __ __ __ __ __ __ __ __ __ __ __ space.
12. The __ __ __ __ __ cycle breaks down pyruvic acid into carbon dioxide and produces NADH, FADH 2, and ATP.
13. The NADH and FADH2 produced during the Krebs cycle pass their electrons down the __ __ __ __ __ __ __ __ __ __
__ __ __ __ __ __ __ chain to produce ATP.
14. The passage of H+ ions through __ __ __ __ __ __ __ __ __ __ __ causes it to spin and produce ATP.
15. This 3 carbon molecule is produced during glycolysis when glucose splits in half
a.
= __ __ __ __ __ __ __ __ __ __ __
16. Cell organelle which acts as the cell’s power plant to burn glucose and store energy as ATP
a.
= __ __ __ __ __ __ __ __ __ __ __ __
17. If oxygen is NOT present, glycolysis is followed by __ __ __ __ __ __ __ __ __ __ __ __.
18. This molecule has the formula C6H12O6 and is split in half during glycolysis = __ __ __ __ __ __ __
19. The carbon atoms in pyruvic acid end up as __ __ __ in the atmosphere following the Krebs cycle.
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Multiple Choice Questions Photosynthesis
1.What are the products of photosynthesis?
a. water and carbon dioxide
b. water and oxygen
c. oxygen and carbohydrate
d. carbohydrate and water
e. NAD and glucose
2. Why are plants green?
a. They absorb only green wavelengths of light.
b. They absorb only yellow and blue wavelengths of light.
c. They reflect nearly all wavelengths of light.
d. They reflect green wavelengths of light.
e. They reflect yellow and blue wavelengths of light.
3. To what does the term stroma refer?
a. the double membrane of the chloroplast
b. a flattened disk or sac in the chloroplast
c. a stack of thylakoid membrane structures
d. the central fluid-filled space of the chloroplast
e. the cytochrome system in the membranes of the thylakoids
4. Which is most closely associated with the Calvin cycle?
a. ATP production
b. oxygen production
c. carbon dioxide fixation
d. carbon dioxide production
e. removal of electrons from water for passage through an electron transport system
5. Photosynthetic pigments
a. Absorb specific wavelengths of light in their absorption spectra.
b. Include chlorophyll
c. Can have their absorption spectra analyzed using a spectrophotometer.
d. Reflect certain wavelengths of light
e. All of the choices are correct.
6. The Calvin cycle requires all of the following except _____________ to occur.
a. ATP
b. carbon dioxide
c. light
d. NADPH
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Chloroplasts
Photosynthesis is a process in which sunlight energy is used to make glucose. The site of photosynthesis is in the
chloroplast – an organelle found in the leaves of green plants. The main functions of chloroplasts are to produce food
(glucose) during photosynthesis, and to store food energy. Chloroplasts contain the pigment, chlorophyll. Chlorophyll
absorbs most of the colors in the color spectrum, and reflects only green and yellow wavelengths of light. This is why we
see leaves as green or yellow – because these colors are reflected into our eyes.
Plant Cell
1. What is photosynthesis?
2. Where does photosynthesis occur?
3.
What are chloroplasts and where are they found?
4.
What are the two main functions of chloroplasts?
5.
Why do most leaves appear green?
6.
What is the primary pigment found in the chloroplast?
Photosynthesis
Glucose is another name for sugar, the molecular formula for glucose is C6H12O6. Plants make sugar by using the energy
from sunlight to transform CO2 from the air with water from the ground into glucose. This process, called
photosynthesis, occurs in the chloroplast of the plant cell. During this process, oxygen (O 2) is created as a waste product
and is released into the air for us to breathe. The formula for photosynthesis is:
CO2 + H2O + sunlight ---- C6H12O6 + O2
This formula says that carbon dioxide and water molecules are combined with the energy from sunlight to produce sugar
and oxygen. The reactants in photosynthesis (what is used) are CO2, water and sun. The plant gets water from the ground
through its roots. The plant collects carbon dioxide from the air. Much of the carbon dioxide comes from living
organisms that exhale it, but some also comes from factory smokestacks and car fumes.
7.
What is the formula for photosynthesis?
8.
What three things are used to make glucose in photosynthesis?
9.
Where does the water come from?
10. Where does the water enter the plant?
11. What are some sources of CO2?
12. What type of energy does the plant use to convert CO2 and H2O into sugar?
The products (what is made) are glucose and oxygen. The glucose produced is used by the plant for energy and growth.
We also use this glucose by eating plants. The oxygen produced is released into the air for us to breathe. Photosynthesis
is essential for all life on earth, because it provides food and oxygen.
13. What is produced in photosynthesis?
14. What is the glucose used for?
15. What is the oxygen used for?
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