7th Grade > Biology
RESPIRATION IN ORGANISMS MCQs
Total Questions : 96
| Page 2 of 10 pages
Answer: Option A. -> True
:
A
In plants, each part can independently take in oxygen from the air and give out carbon dioxide. Like all other living cells of the plants, the root cells take up air from the air spaces present between the soil particles.
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A
In plants, each part can independently take in oxygen from the air and give out carbon dioxide. Like all other living cells of the plants, the root cells take up air from the air spaces present between the soil particles.
Answer: Option D. -> oxygen
:
D
During anaerobic respiration, lactic acid is produced. This happens when the demand for energy is more and supply of oxygen is less, mainly during heavy exercise. The lactic acid thus formed is broken down by the supply of oxygen.
:
D
During anaerobic respiration, lactic acid is produced. This happens when the demand for energy is more and supply of oxygen is less, mainly during heavy exercise. The lactic acid thus formed is broken down by the supply of oxygen.
Answer: Option B. -> inhalation
:
B
:
B
- Inhalation/inspiration is the process of taking in of air through nose and passing it towards the lungs through the trachea (wind pipe).
- Exhalation/expiration is the process by which, the air is expelled from the body back into the atmosphere.
- Breathing is a physical process that involves both inhalation and exhalation.
- Respiration is a chemical process which involves breakdown of glucose into water vapour and carbon dioxide in the presence of oxygen and energy is released in the form of ATP.
Answer: Option B. -> aerobic respiration
:
B
Cellular respiration or respiration is the process by which cells breakdown glucose to realease energy. Carbon dioxide and waterare alsoreleased in the process. This can happen in the presence or absence of oxygen. When respiration takes place in the presence of oxygen, it is called aerobic respiration. If it happens in the absence of oxygen, it is called anaerobic respiration.
:
B
Cellular respiration or respiration is the process by which cells breakdown glucose to realease energy. Carbon dioxide and waterare alsoreleased in the process. This can happen in the presence or absence of oxygen. When respiration takes place in the presence of oxygen, it is called aerobic respiration. If it happens in the absence of oxygen, it is called anaerobic respiration.
Answer: Option A. -> True
:
A
The air which we breathe in and breathe out is not pure oxygen or carbon dioxide respectively. Inhaled airis a mixture of different gases present in the atmosphere. It contains around 78% nitrogen,21% oxygen, 0.04% of carbon dioxide and other gases.
:
A
The air which we breathe in and breathe out is not pure oxygen or carbon dioxide respectively. Inhaled airis a mixture of different gases present in the atmosphere. It contains around 78% nitrogen,21% oxygen, 0.04% of carbon dioxide and other gases.
Answer: Option A. -> Glucose is broken down in both processes.
:
A
In both aerobic and anaerobic respiration, glucose is broken down to release energy. In aerobic respiration the break down of glucoseoccurs in presence of oxygen and in anaerobic respiration, it occurs in the absence of oxygen.
:
A
In both aerobic and anaerobic respiration, glucose is broken down to release energy. In aerobic respiration the break down of glucoseoccurs in presence of oxygen and in anaerobic respiration, it occurs in the absence of oxygen.
Answer: Option A. -> Stomata
:
A
Stomata are small pores present on the lower surfaceofgreen leaves of plants. They are responsible for the exchange of oxygen and carbon dioxide. Excess water is also removed from the plant through the stomata. This process is called transpiration.
:
A
Stomata are small pores present on the lower surfaceofgreen leaves of plants. They are responsible for the exchange of oxygen and carbon dioxide. Excess water is also removed from the plant through the stomata. This process is called transpiration.
:
Cellular respirationtakes place in the cells all of organisms. In the cell, glucose is broken down into carbon dioxide and water with the release of energy. All organisms get energy through cellular respiration.
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Name of the part: 1 Mark
Statement: 1 Mark
Energy currency: 1 Mark
Mitochondria is the organelle in which cellular respiration takes place.
Prokaryotes are unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
The energy currency of cell is ATP (Adenosine tri phosphate).
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Definition: 1 Mark
Steps: 1 Mark
Breathing is the process of taking in of oxygen and giving out carbon dioxide with the help of respiratory organs.
It involves two steps - inhalation and exhalation.
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