Advertisements
Advertisements
Question
If a plant is releasing carbon dioxide and taking in oxygen during the day, does it mean that there is no photosynthesis occurring? Justify your answer.
Advertisements
Solution
No, it does not mean that photosynthesis is not taking place. During the day, carbon dioxide released by plants during respiration is used up for photosynthesis, and some of the oxygen released during photosynthesis is used for respiration by the plants. Release of oxygen is a sign that photosynthesis is occurring in plant.
APPEARS IN
RELATED QUESTIONS
Cellular respiration takes place in
(a) Lysosome
(b) Chlorophyll
(c) Mitochondria
(d) Ribosome
How are oxygen and carbon dioxide transported in human beings?
The breakdown of pyruvate to give carbon dioxide, water, and energy takes place in ______.
What type of respiration takes place in human muscles during vigorous physical exercise? Give reason for your answer
Name the type of respiration in which the end product is:
Lactic acid
Give one example where such a respiration can occur.
State the three common features of all the respiratory organs like skin, gills and lungs.
Describe the process of respiration in the following part of a plant:
Leaves
What is the function of the respiratory system?
How are oxygen and carbon dioxide exchanged in our body during respiration?
Answer this question.
Name the organ of respiration in fishes.
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.
Choose the odd one out in the following groups of four items each:
Trachea, Ciliated epithelium, Mucous, Diffusion
State one function of the following:
Intercostal muscles
State one function of the following:
Pleural fluid
Give suitable explanation for the following :
Why does a person feel breathlessness at higher altitudes?
Given below is an overall chemical reaction of a certain process:
C6H12O6 →LacticAcid+2ATP+Heat energy
Name the process.
Answer the following question.
A gas is released during photosynthesis. Name the gas and also state the way by which the gas is evolved.
The major fraction of CO2 released during cellular respiration is transported by the blood to the lung capillaries ______
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?
Exchange of gases in the leaves takes place with the help of ______.
