Why use dead peas as a control for oxygen consumption in respiration?

1. Why do we use peas for cellular respiration?
2. Why do germinating peas use oxygen and not carry out photosynthesis?
3. Why do the germinating peas consume more oxygen than the dry peas?
4. Why do soaked peas respire more?
5. What was the effect of temperature on pea seed respiration?
6. Why do germinating peas produce carbon dioxide?
7. Do peas undergo cellular respiration during germination?
8. What is the difference between germinating and Nongerminating peas?
9. What is the difference between germinating and dormant peas?
10. Is oxygen being consumed or produced by the germinating peas?
11. At which temperature did the peas consume the most oxygen?
12. What does corrected difference mean?
13. Do dead seeds respire?
14. What gas will the peas produce as they respire?
15. Why do we respire more at higher temperatures?

Why do we use peas for cellular respiration?

Peas will carry out respiration to release the energy needed for growth and heat energy is produced as it is an exothermic reaction. The peas are also covered in microbes which also respire producing heat. The germinating peas which have been disinfected will produce less heat than Flask A.

Why do germinating peas use oxygen and not carry out photosynthesis?

Function. During germination, a pea plant is growing, meaning its cells are actively dividing. The food stored in the seed provides the pea plant cells with the energy they need to maintain themselves and divide, since the plant is not yet capturing sunlight through photosynthesis.

Why do the germinating peas consume more oxygen than the dry peas?

Why? Germinating peas consume more oxygen because they are growing and are more active than non-germinating peas.

Why do soaked peas respire more?

Because all seeds require water for germination, seeds soaked over night or for a few hours before class typically have higher respiration rates. Pea and bean seeds may even begin germinating during the experiment. All cells (plants and animals) perform cellular respiration to maintain homeostasis and grow.

What was the effect of temperature on pea seed respiration?

The effect of temperature on the rate of cell respiration in the peas is that the higher the temperature, the higher the rate of cell respiration because the cool water causes the enzymes to slow down, causing the reactions of cellular respiration to slow down, and therefore the rate of respiration to be slower.

Why do germinating peas produce carbon dioxide?

As oxygen is consumed to provide energy, germinating seeds release carbon dioxide. ... Additionally, that at higher temperatures, the rate of cellular respiration in the seeds will increase.

Do peas undergo cellular respiration during germination?

All organisms, including plants and animals, oxidize glucose for energy. Often, this energy is used to convert ADP and phosphate into ATP. Peas undergo cell respiration during germination.

What is the difference between germinating and Nongerminating peas?

Germination is the growth processes of a seed. It requires a lot of energy to break the seed coat and as it continues to grow this energy need increases. ... Non-germinating seeds, however, are dormant and use very little respiration. Some respiration must occur in order for the seed to live.

What is the difference between germinating and dormant peas?

Dormant peas do not have favorable environmental conditions, therefore they only need enough ATP to carry out normal processes. Germinating peas are actively growing and would require additional ATP, resulting in a higher rate of cellular respiration.

Is oxygen being consumed or produced by the germinating peas?

The respirometer with only germinating peas will consume the largest amount of oxygen and will convert the largest amount of carbon dioxide and potassium carbonate.

At which temperature did the peas consume the most oxygen?

This activity uses a number of controls. Identify at least three of the control, and describe the purpose of each control. The amount of oxygen consumed was greatest in germinating peas in warm water.

What does corrected difference mean?

The corrected differences shown in Table 3 are found by subtracting the difference of the bead's initial reading and reading at the moment from the difference between the initial amount and the reading of the moment of the peas. This is the amount of pressure just lost only due to cellular respiration.

Do dead seeds respire?

Dead seeds cannot germinate and so they cannot evolve carbon dioxide. ... So the conclusion for the above experiment is germinating seeds only can respire anaerobically and evolve carbon dioxide while dry seeds cannot evolve carbon dioxide as they are inactive.

What gas will the peas produce as they respire?

The CO produced during respiration is removed with potassium hydroxide (KOH), and according to the following reaction: , will form potassium carbonate (K CO ). Because of the removal of carbon dioxide, the volume of the gas in the respirometer is directly related to the amount of oxygen consumed by seeds.

Why do we respire more at higher temperatures?

The increase in temperature enhances the rate of cellular respiration. It is due to the heat speeds up the reactions, means the kinetic energy is higher. It means reactions speed up and rate of cellular respiration increases. When temperature decreases, in order to conserve energy, cellular processes slow.