Advertisements
Advertisements
Question
The breathing and respiration in woody stem of a plant takes place through:
Options
Root hair
Lenticels
Closed stomata
Open stomata
Advertisements
Solution
Lenticels
In woody stems, the bark (outer covering of the stem) has lenticels for gaseous exchange.
APPEARS IN
RELATED QUESTIONS
Carbon dioxide enters into the leaves through tiny pores present on the surface of the leaf called _________.
(a) chlorophyll
(b) chloroplast
(c) stomata
(d) epidermis
Mention any two components of blood.
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.
Name an animal which depends on simple diffusion of gases for breathing.
Define breathing. State the differences between breathing and respiration.
From where do the aquatic animals and terrestrial animals obtain oxygen for breathing and respiration?
Explain how, it would benefit deep sea divers if humans also had gills.
How are oxygen and carbon dioxide exchanged in our body during respiration?
What happens to the glucose which enters the nephron tubule alongwith the filtrate?
Answer this question.
What are the holes on the sides of the body of insects called?
What is the normal percentage composition of gases in inspired and expired air respectively?
Given below is an overall chemical reaction of a certain process:
C6H12O6→LacticAcid+2ATP+Heat energy
Is this reaction applicable to animals or to plants or to both animals and plants?
Why is respiration essential for life?
Air that enters through the nose passes into this tube.
What is the ppCO2 in alveolar air?
____________ is necessary for the respiration in plant.
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 ______.
Explain the three pathways of breakdown in living organisms.
Mark the following statement as True or False. Correct the false statement.
Insects have spiracles on the lower surface of the body
Visit a doctor. Find out about artificial respiration. Ask the doctor:
- When does a person need artificial respiration?
- Does the person need to be kept on artificial respiration temporarily or permanently?
- From where can the person get supply of oxygen for artificial respiration?
