1. What is the original source of energy in the food you eat?
A. Photosynthesis
B. Sun
C. Plans
D. Sugar
2. Why are leaves red in the fall?
A. Chlorophyll breaks down because there's less sunlight.
B. Mitochondria breaks down because there's less sunlight.
C. Chlorophyll absorbs red in the fall, rather than green
D. Chlorophyll reflects green light in the fall.
3. Which statement is true?
A. The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the thylakoid membrane.
B. The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.
C. The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the thylakoid membrane.
D. The Calvin cycle is the light-dependent (needs light) step of photosynthesis and happens in the stroma.
4. Which equation best models cellular respiration?
A. 6H2O + 6CO2 → C6H12O6 + 6O2 + Energy
B. C6H12O6 + 6O2 + 6CO2 → 6H2O + Energy
C. 6H2O + 6CO2 + Energy → C6H12O6 + 6O2
D. C6H12O6 + 6O2 → 6H2O + 6CO2 + Energy
5. The following are steps of cellular respiration except
A. electron transport chain
B. glycolysis
C. electrolysis
D. the Krebs cycle
6. Which molecule provides the activation energy that is required to start glycolysis?
A. Water
B. Sugar
C. Carbon dioxide
D. ATP
7. Which compound is a reactant in cellular respiration?
A. Carbon dioxide
B. ATP
C. Oxygen
D. Water
8. Choose true or false
True
False
The Light Cycle occurs in the thylakoid
The "Dark Cycle" aka the Calvin Cycle must occur in the dark.
Plants release CO2 during photosynthesis
The Calvin Cycle occurs in the mitochondria
9. Photosynthesis occurs in the----- Cellular respiration occurs in the---
Golgi apparatus
Chloroplast
Ribosome
Mitochondria
10. Which of these would be considered an ectotherm?
A. Poor bear
B. Red tailed hawk
C. Lion
D. Rattlesnake
11. The first step of photosynthesis is the---- the second step of photosynthesis is called the---- Once glucose is created from sunlight, water, and carbon dioxide, the plant can then perform cellular respiration to obtain ATP (energy) needed to live. The steps of cellular respiration are (IN ORDER)-------,--------and -------
light cycle
Krebs cycle
Glycolysis
Calvin cycle
Electron transport chain (ETC)
12. Where does the Calvin cycle occur?
A. Mitochondria
B. Ribosomes
C. Stroma
D. Thylakoid
1. A. Photosynthesis
2. A. Chlorophyll breaks down because there's less sunlight.
3. B. The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.
4. D. C6H12O6 + 6O2 → 6H2O + 6CO2 + Energy
5. C. electrolysis
6. D. ATP
7. C. Oxygen
8. False, True, True, False
9. Chloroplast, Mitochondria
10. D. Rattlesnake
11. Light cycle, Calvin cycle, Glycolysis, Krebs cycle, Electron transport chain (ETC)
12. C. Stroma
1. The original source of energy in the food you eat is A. Photosynthesis.
2. Leaves are red in the fall because A. Chlorophyll breaks down because there's less sunlight.
3. The statement that is true is B. The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma.
4. The equation that best models cellular respiration is D. C6H12O6 + 6O2 → 6H2O + 6CO2 + Energy.
5. The step of cellular respiration that is not part of the process is C. electrolysis.
6. The molecule that provides the activation energy for glycolysis is D. ATP.
7. A compound that is a reactant in cellular respiration is C. Oxygen.
8. The true statements are:
- The Light Cycle occurs in the thylakoid
- Plants release CO2 during photosynthesis
9. Photosynthesis occurs in the B. Chloroplast. Cellular respiration occurs in the D. Mitochondria.
10. An ectotherm is D. Rattlesnake.
11. The first step of photosynthesis is the A. Light Cycle, the second step is called the D. Calvin Cycle. Once glucose is created from sunlight, water, and carbon dioxide, the plant can then perform cellular respiration to obtain ATP (energy) needed to live. The steps of cellular respiration, in order, are B. Glycolysis, C. Krebs cycle, and A. Electron transport chain (ETC).
12. The Calvin cycle occurs in the C. Stroma.
1. The original source of energy in the food you eat is A. Photosynthesis. To get the answer, you need to understand that photosynthesis is the process by which plants convert sunlight into energy in the form of glucose. This glucose is then consumed by animals, providing them with energy.
2. The correct answer is A. Chlorophyll breaks down because there's less sunlight. To understand this, you should know that leaves appear green during the growing season because of chlorophyll, which absorbs sunlight and reflects green light. In the fall, as daylight decreases, chlorophyll breaks down, revealing other pigments like red, orange, and yellow.
3. The correct answer is B. The Calvin cycle is the light-independent (does not need light) step of photosynthesis and happens in the stroma. To answer this question, you need to know that the Calvin cycle is the process in photosynthesis where carbon dioxide is converted into glucose. It is a light-independent reaction that occurs in the stroma, the fluid-filled space inside the chloroplasts.
4. The correct equation that models cellular respiration is D. C6H12O6 + 6O2 → 6H2O + 6CO2 + Energy. To solve this question, you need to understand that cellular respiration is the process by which cells break down glucose and oxygen to produce energy in the form of ATP. The given equation represents the balanced equation for this process.
5. The correct answer is C. Electrolysis. Electrolysis is not a step of cellular respiration. The other options, glycolysis, the Krebs cycle, and the electron transport chain, are all steps involved in cellular respiration, where glucose is broken down to release energy.
6. The molecule that provides the activation energy to start glycolysis is D. ATP. ATP (adenosine triphosphate) is the energy currency of the cell. It provides the activation energy required to kickstart glycolysis, the first step of cellular respiration.
7. The compound that is a reactant in cellular respiration is A. Carbon dioxide. Cellular respiration involves the breakdown of glucose and oxygen to produce carbon dioxide, water, and energy (ATP). Carbon dioxide is one of the reactants in this process.
8. The correct answers are:
- False. The Light Cycle occurs in the thylakoid. The thylakoid is where the light-dependent reactions of photosynthesis take place.
- True. The "Dark Cycle" aka the Calvin Cycle must occur in the dark. The Calvin cycle does not directly require light and can occur in the absence of light.
- True. Plants release CO2 during photosynthesis. During photosynthesis, plants take in carbon dioxide and release oxygen as a byproduct.
- False. The Calvin Cycle occurs in the stroma. The stroma is the space within the chloroplasts where the Calvin cycle, the light-independent reactions of photosynthesis, takes place.
9. Photosynthesis occurs in the Chloroplast. Cellular respiration occurs in the Mitochondria. To answer this question, you need to know the specific organelles involved in these processes. Chloroplasts are responsible for photosynthesis, while mitochondria are responsible for cellular respiration.
10. The correct answer is D. Rattlesnake. An ectotherm is an organism that relies on external sources, such as the environment, to regulate its body temperature. Rattlesnakes are ectotherms as they rely on the sun's warmth to regulate their body temperature.
11. The first step of photosynthesis is the Light Cycle, the second step of photosynthesis is called the Calvin cycle. Once glucose is created from sunlight, water, and carbon dioxide, the plant can then perform cellular respiration to obtain ATP (energy) needed to live. The steps of cellular respiration are (IN ORDER) Glycolysis, Krebs cycle, and Electron transport chain (ETC).
12. The Calvin cycle occurs in the C. Stroma. To answer this question, you need to know that the Calvin cycle, the light-independent reactions of photosynthesis, occurs in the stroma of the chloroplasts. The stroma is the fluid-filled space surrounding the thylakoid membranes.