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प्रश्न
Choose the odd one out in the following groups of four items each:
Hairy, Moist, Nostril, Vocal cord
उत्तर
Vocal cord
APPEARS IN
संबंधित प्रश्न
How are the lungs designed in human beings to maximize the area for exchange of gases?
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
Mention any two components of blood.
Name two animals which breathe through gills.
The trachea divides into tow tubes at its lower end. What is the name of these tubes?
Fill in the following blank with suitable word:
Gills are the breathing organs in ___________.
What is meant by aquatic animals and terrestrial animals?
Describe the exchange of gases which takes place in the leaves of a plant
(a) during daytime, and (b) at night.
Which of the following is the correct sequence of air passage during inhalation?
(a) nostrils → larynx → pharynx → trachea → lungs
(b) nasal passage → trachea → pharynx → larynx → alveoli
(c) larynx → nostrils → pharynx → lungs
(d) nostrils → pharynx → larynx → trachea → alevoli
Which of the following is known as the energy currency of the cells in biology?
Veins and arteries carry blood. Which of these carry blood away from the heart?
Fill in the following blanks with suitable words:
The ___________ blood cells make antibodies whereas ___________ blood cells help in respiration.
It has been found that people living in very high mountains have many more red corpuscles in their blood than people living in plains. Which one of the following best accounts for this phenomenon?
There is a pair of bean-shaped organs P in the human body towards the back, just above the waist. A waste product Q formed by the decomposition of unused proteins in the liver is brought into organ P through blood by an artery R. The numerous tiny filters S present in organ P clean the dirty blood by removing the waste product Q. The clean blood goes into circulation through a vein T. The waste substance Q, other waste salts, and excess water form a yellowish liquid U which goes from organ P into a bag-like structure V through two tubes W. This liquid is then thrown out of the body through a tube X.
(a) What is (i) organ P, and (ii) waste substance Q?
(b) Name (i) artery R, and (ii) vein T.
(c) What are tiny filters S known as?
(d) Name (i) liquid U (ii) structure V (iii) tubes W, and (iv) tube X.
Out of xylem and phloem, which one carries materials only upwards?
Answer the following in one word.
What is the muscular sheet below the lungs called?
Choose the odd one out in the following groups of four items each:
Diffusion, Respiratory gases, Alveoli, Capillary network
Name the body structure concerned with the given functional activity:
Protects the lungs from mechanical injury
Differentiate between the following pairs on the basis of the aspect given in the brackets.
Tidal volume and Residual volume (Quantity of air)
Given below is an overall chemical reaction of a certain process:
C6H12O6→LacticAcid+2ATP+Heat enengy
Name one tissue in which this reaction occur.
List the organs of Human respiratory system.
____________ is the maximum amount of air that the lungs can hold after a maximum forceful inspiration.
Lack of oxygen in muscles often leads to cramps among cricketers. This results due to:
What is common between extensive network of blood vessels around walls of alveoli and in glomerulus of nephron?
Which of the following is an incorrect statement?
Explain the three pathways of breakdown in living organisms.
The exchange of gases in the leaves takes place with the help of __________.
