Advertisements
Advertisements
प्रश्न
State whether the following statement is true or false:
Energy can be produced in cells without oxygen.
पर्याय
True
False
उत्तर
True
Energy can be produced in the cells even without oxygen.
APPEARS IN
संबंधित प्रश्न
What are the differences between aerobic and anaerobic respiration? Name some organisms that use the anaerobic mode of respiration.
What would be the consequences of a deficiency of haemoglobin in our bodies?
Which of the following is the correct statement regarding bile?
Where does the blood absorb oxygen in the human body?
What is the name of tiny air-sacs at the end of smallest bronchioles in the lungs?
Explain why, a land plant may die if its roots remain waterlogged for a long time.
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.
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
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.
Veins and arteries carry blood. Which of these carry blood back to the heart?
Tick the most appropriate answer.
The products of respiration are :
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Epiglottis and _____________.
State one function of the following:
Intercostal muscles
Given below is an overall chemical reaction of a certain process:
C6H12O6 →LacticAcid+2ATP+Heat energy
Name the process.
Define respiration.
Why is respiration essential for life?
With which of the following haemoglobin combines to form carboxyhaemoglobin?
During the process of exhalation, the ribs move
