Respiration
Trending Questions
Q.
Which is the correct sequence of the air passage in man?
Nasal cavity
pharynx
trachea
Larynx
bronchi
bronchioles
alveoli
Nasal cavity
larynx
pharynx
trachea
bronchi
bronchioles
alveoli
Nasal cavity
larynx
bronchi
pharynx
bronchioles
alveoli
Nasal cavity
pharynx
larynx
trachea
bronch
bronchioles
alveoli
Q. Explain the process of gaseous exchange in the alveoli.
Q.
How is the air passing through the nostrils in humans is filtered?
Q. Anaerobic respiration takes place in the absence of oxygen.
- False
- True
Q. Which of the following animals can breathe through both lungs and skin?
- Fish
- Leech
- Frog
- Earthworm
Q. The organic acid that is regenerated in Krebs cycle is acetyl-CoA.
True
False
Q. Give reasons for:
(iii) Respiration rate is higher in animals than in plants.
(iii) Respiration rate is higher in animals than in plants.
Q. Arrange the following in correct order through which the air flows upto alveoli
Larynx, alveoli, trachea, pharynx, external nostrils, internal nostrils, nasal cavities.
Larynx, alveoli, trachea, pharynx, external nostrils, internal nostrils, nasal cavities.
Q. State whether the following statements are true or false-
Statement 1- Aerobic respiration occurs in the presence of oxygen.
Statement 2- Energy released in aerobic respiration is less than in anaerobic respiration.
Statement 1- Aerobic respiration occurs in the presence of oxygen.
Statement 2- Energy released in aerobic respiration is less than in anaerobic respiration.
- Both the statements are true
- Statement 1- False, Statement 2- True
- Statement 1- True, Statement 2- False
- Both the statements are false
Q. Pyruvic acid is converted into ________ before formation of oxaloacetic acid in the citric acid cycle.
- Acetyl CoA
- Acetoacetic acid
- Lactic acid
- Cis aconitic acid
Q. Inhaled air contains more carbon dioxide.
- False
- True
Q. Do plants respire only during the day or day night
Q. Which of the following substances gets acted upon during respiration?
- Proteins
- Glucose
- Fats
- Carbon dioxide
Q. What is the process of glycolysis
Q.
Which of the following represents the correct biochemical reaction for wine production?
Glucose → Alcohol + Carbon dioxide + Energy
Glucose → Carbon dioxide + Water + Energy
Glucose → Ethyl alcohol + Carbon dioxide
Maltose → Lactic acid + Carbon dioxide
Q. Short / Long Answer Types :
Explain, why the process of glycolysis and cellular respiration releases the energy of glucose in small quantities rather than all at once.
Explain, why the process of glycolysis and cellular respiration releases the energy of glucose in small quantities rather than all at once.
Q. ATP generation takes place in which of the following cell organelle?
- Ribosomes
- Endoplasmic reticulum
- Mitochondria
- Lysosomes
Q.
"Respiration in plants only takes place at night".
Is this statement true? Give reasons for your answer.
Q. During heavy exercise, the breathing rate can increase upto ........... per minute.
- 35 times
- 40 times
- 20 times
- 25 times
Q. Identify a fish who breathes air through its lungs.
- Lungfish
- Rohu
- Dogfish
- Sting Ray
Q. Match the terms to these definitions.
Fermentation, glycolysis, Krebs cycle, chemiosmosis, acetyl CoA, electron transport system, ATP, cellular respiration, oxidative phosphorylation, photophosphorylation, combustion.
.......... Conversion of the chemical energy of organic substances into a metabolically usable energy within living cells.
Fermentation, glycolysis, Krebs cycle, chemiosmosis, acetyl CoA, electron transport system, ATP, cellular respiration, oxidative phosphorylation, photophosphorylation, combustion.
.......... Conversion of the chemical energy of organic substances into a metabolically usable energy within living cells.
Q. Asphyxia occurs due to
- Rise in level of CO2
- Fall in level of CO2
- Rise of O2 level
- Fall in O2 level
Q. The O2 in the exhaled air is
- About 8%
- About 10%
- About 20%
- About 15%
Q. In hurdle race, which of the following is accumulated in the leg muscle?
- Performed ATP
- Lactate
- Glycolysis
- Oxidative metabolism