Advertisements
Advertisements
Question
The exchange of respiratory gases in the cells of plants occurs by the process of _______________
(a) Osmosis
(b) Diffusion
(c) Glycolysis
(d) exhalation
Advertisements
Solution
Diffusion
Air enters the stomatal opening in plant cells, after which the exchange of respiratory gases occurs by diffusion.
APPEARS IN
RELATED QUESTIONS
Cellular respiration takes place in
(a) Lysosome
(b) Chlorophyll
(c) Mitochondria
(d) Ribosome
What are the different ways in which glucose is oxidised to provide energy in various organisms? Give one example of each.
Trace the movement of oxygenated blood in the body.
Name the process by which plant parts like roots, stems, and leaves get oxygen required for respiration.
The trachea divides into two tubes at its lower end. What is the name of these tubes?
Describe the process of respiration in the following part of a plant:
Leaves
Why do fishes die when taken out of water?
Which contains more carbon dixoide : exhaled air or inhaled air? Why?
During respiration, the exchange of gases takes place in ______.
Internal respiration may be defined as ______.
One of the following animals does not use tracheae as the respiratory organs. This animal is ______.
Out of xylem and phloem, which one carries materials only upwards?
Answer this question.
What are the holes on the sides of the body of insects called?
A student has set up "CO2 is released during respiration”. After about 1 hour he observes no change in the water level in the delivery tube. Write two possible resons for the failure of the experiment.
State one function of the following:
Pleural fluid
What percent of oxygen is transported in a dissolved state by the plasma?
The partial pressure of oxygen of blood in pulmonary capillaries is i ______ mrnHg while in alveolar air it is ii ______ mmHg.
Breathing is a process that
- provides O2 to the body.
- breaks down food to release energy.
- helps the body to get rid of CO2.
- produces water in the cells.
Which of the following gives the correct combination of functions of breathing?
Observe the figure carefully and answer the following questions.
- Which process is being tested in the activity?
- What is the result of the activity? Give reasons.
