Photosynthesis test questions
- What is the role of chlorophyll?
- Which useful energy conversion is carried out by chlorophyll?
- What are the products of the light reactions?
- In photosynthesis, what is ATP required for?
- In which cell organelles does carbon fixation occur?
What are some questions about cellular respiration?
Cellular respiration test questions
- What is the name of the high-energy molecule used by cells?
- Glycolysis occurs in which part of the cell?
- During glycolysis, glucose is split into two molecules of what?
- If oxygen is not present, pyruvate molecules undergo what?
- The diagram shows the citric acid cycle.
How are the questions for photosynthesis and cellular respiration related?
While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide.
What factors affect photosynthesis and cellular respiration?
- the intensity of the light being absorbed by the chloroplasts.
- the concentration and availability of CO2 (Carbon Dioxide)
- the temperature.
How would cellular respiration be impacted in the absence of photosynthesis?
How would cellular respiration be impacted in the absence of photosynthesis? Only aerobic respiration would take place.
Do photosynthesis and respiration both occur in plants?
Plants carry out both photosynthesis and cellular respiration. They make their own food, and then break down those glucose molecules later, generating ATP to power their cellular processes.
What product of photosynthesis is used in cellular respiration?
Photosynthesis makes glucose and oxygen, which are then used as the starting products for cellular respiration.
Which of the following occurs in both photosynthesis and respiration?
The answer is (a) chemiosmosis.
Where does photosynthesis take place?
In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.
How many photosynthesis and cellular respiration are related to each other?
Photosynthesis requires the products of respiration, while respiration requires the products of photosynthesis. Together these reactions allow cells to make and store energy and help regulate atmospheric concentrations of carbon dioxide and oxygen.
What made the cellular respiration and photosynthesis processes different from each other?
The main difference between photosynthesis and cellular respiration is that photosynthesis is an anabolic process, where the synthesis of organic compounds occurs, storing energy whereas cellular respiration is a catabolic process, where the stored organic compounds are utilized, producing energy.
Which of the following statements about the relationship between photosynthesis and cellular respiration is true?
Which of the following statements best describes the relationship between photosynthesis and cellular respiration? Photosynthesis stores energy in complex organic molecules
cellular respiration releases energy from complex organic molecules.
What would prevent photosynthesis from happening?
Three factors can limit the rate of photosynthesis: light intensity, carbon dioxide concentration and temperature.
Does light affect cellular respiration?
No, light does not affect cellular respiration as the process of cellular respiration is not dependent on light.
What is the importance of photosynthesis and cellular respiration for living things?
Cellular respiration and photosynthesis are biological processes in which matter and energy flow through the biosphere. These two processes are responsible for the exchange of oxygen and carbon dioxide between living organisms and the environment.
Why is it important that the rate of photosynthesis be greater than the rate of cellular respiration in the ecosystem?
With no light, there is no photosynthesis. So the rate of respiration is greater than the rate of photosynthesis. So this means there is an overall excess of carbon dioxide produced during respiration. An excess is the same as a negative uptake.
What happens if photosynthesis is equal to respiration?
compensation point The point reached in a plant when the rate of photosynthesis is equal to the rate of respiration. This means that the carbon dioxide released from respiration is equivalent to that which is taken up during photosynthesis. The compensation point is reached as light intensity increases.
Why must plants do cellular respiration like animals?
Plants, like animals, undergo cellular respiration to break down food (in the form of sugar, or glucose, C6H12O6) for energy to live. Respiration requires oxygen to convert the glucose into energy, water, and carbon dioxide. And in fact, plants undergo respiration all the time, both night and day.
Which is faster photosynthesis or respiration?
Well, the rate of photosynthesis is usually faster than respiration, so a plant produces more oxygen than it needs for itself.
Can photosynthesis occur without oxygen to show?
Photosynthetic reactions can occur without oxygen that is anoxygenic
thus, they do not produce oxygen. There is a process called Phototrophy by which organisms trap light energy or photons to store it as chemical energy in the form of ATP or adenosine triphosphate and/or reducing power in NADPH.
Why do animals need to carry out cellular respiration but not photosynthesis?
Why do animals need to carry out cellular respiration, but not photosynthesis? They cannot perform photosynthesis because they do not have chloroplasts and they cannot absorb solar energy. However, by consuming plants and other autotrophs, animals can get their source of glucose.
Does photosynthesis occur at night?
No, plants do not perform photosynthesis at night. Plants can perform photosynthesis at night only if they are provided with the artificial light of the corresponding wavelengths.
Do photosynthesis and cellular respiration have the same reactants?
The products and reactants for photosynthesis are reversed in cellular respiration: The reactants of photosynthesis are carbon dioxide and water, which are the products of cellular respiration. The reactants of cellular respiration are oxygen and sugar, which are the products of photosynthesis.
In what organelle does cellular respiration occur?
While most aerobic respiration (with oxygen) takes place in the cell’s mitochondria, and anaerobic respiration (without oxygen) takes place within the cell’s cytoplasm.
Does photosynthesis use ATP?
In photosynthesis energy is transferred to ATP in the light-dependent stage and the ATP is utilised during synthesis in the light-independent stage.
Does cellular respiration produce carbon dioxide?
Cellular respiration is an oxidative process whereby an electron donor is oxidized and oxygen is reduced to produce carbon dioxide, water, and energy .
Does photosynthesis release energy?
In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. Oxygen is released as a byproduct. In cellular respiration, oxygen is used to break down glucose, releasing chemical energy and heat in the process.
Does photosynthesis occur only in leaves?
Photosynthesis primarily takes place in the leaves, with a smaller amount in the stems, and has both a light independent and light dependent process.
What gas is used in photosynthesis?
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.
Can green stems photosynthesize?
All plants need carbon to grow, and most plants get carbon when they take up carbon dioxide through photosynthesis with their leaves. However, in arid ecosystems, green-stemmed plants, which are able to take up carbon dioxide through photosynthesis with their stems, are common.