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प्रश्न
Explain why, a land plant may die if its roots remain waterlogged for a long time.
उत्तर
The roots of plant can not respire if they remain water logged for a long time. This is because water replaces the air present between the soil particles. Thus, the roots do not get enough air to respire and the plant may die.
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संबंधित प्रश्न
Given below are the end products of different reactions involving glucose.
Write the reaction number in front of the following:
(i) Anaerobic reaction =
(ii) Reaction in the human muscles =
(iii) Aerobic respiration =
(iv) Reaction in the plant cells =
(v) Reaction in the liver
Mention any two components of blood.
Name one substance which is produced in anaerobic respiration by an organism but not in aerobic respiration.
Name the pores in a leaf through which respiratory exchange of gases takes place.
Fill in the following blank with suitable word:
The organs of respiration in man are the _____________.
Describe the process of respiration in the following part of a plant:
Stem
Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?
Explain how, the air we breathe in gets cleaned while passing through the nasal passage.
Give the main points of difference between respiration in plants and respiration in animals.
The breathing and respiration in woody stem of a plant takes place through:
Choose the odd one out in the following groups of four items each:
Hairy, Moist, Nostril, Vocal cord
Match the items in Column A with those in Column B.
|
Column A |
Column B |
|
Cartilaginous |
Epiglottis |
|
Large surface area |
Diaphragm |
|
Breathing movements |
Bronchi |
|
Voice |
Alveoli |
|
Complemental air |
Larynx |
|
Swallowing |
Extra inhalation |
Give Suitable Explanation for the Following :
Why do you shiver and why do your teeth chatter when it is very cold in winter?
Answer the following question.
How is O2 and CO2 transported in human beings?
The Figure shown below represents an activity to prove the requirements for photosynthesis. During this activity, two healthy potted plants were kept in the dark for 72 hours. After 72 hours, KOH is kept in the watch glass in setup X and not in setup Y. Both these setups are air tight and have been kept in light for 6 hours. Then, Iodine Test is performed with one leaf from each of the two plants X and Y.
The function of KOH is to absorb ______.
Name the energy currency in the living organisms. When and where is it produced?
Explain the three pathways of breakdown in living organisms.
Mark the following statement as True or False. Correct the false statement.
Exhaled air has more percentage of CO2 than inhaled air
