Fill in the Blanks :-

(a) Carbon dioxide is used by plants to make their food.

Reason : Carbon dioxide, Water and Sunlight is used by plants to make food by the process of Photosynthesis.

(b) Fermentation occurs in the absence of oxygen.

Reason : This type of respiration is called Anaerobic Respiration.

(c) All living organisms use air to perform life functions.

Reason : Air is a very essential thing in all organisms.

(d) During respirations oxygen is taken in and carbon dioxide is given out.

Reason : During respiration oxygen is taken in and carbon dioxide is given out

(e) The first phase of respiration is known as breathing.

Reason : The inhalation and exhalation is known as Breathing.

(f) The nasal cavity leads into the pharynx.

Reason : Pharynx is the tube which leads to lungs.

(g) Air enters the nose through the nostrils.

Reason : Nostril is the opening for Lungs.

(h) Aerobic respiration takes place in the presence of oxygen.

Reason : The type of respiration which takes place in the presence of oxygen.

(i) Glucose is the most useful respiratory material.

Reason : During cellular respiration, glucose breaks to carbon dioxide and water.

(j) Tiny air sacs of lungs are called alveoli.

Reason : Alveoli is the sac of lungs. Their work is to exchange oxygen amd carbon dioxide.

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True or False :-

(1) Respiration is faster than combustion. False

(2) Larynx produces sound. True

(3)  Earthworms respire through the moist skin.

True.

(4) Exchange of gases takes place in the alveoli of lungs. True

(5) Exhaled air contains more oxygen than the inhaled air. True

Verified answer

Explanation:

1. Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose.
2. Fermentation normally occurs in an anaerobic environment. In the presence of O2, NADH, and pyruvate are used to generate ATP in respiration. ... Some fermentation processes involve obligate anaerobes, which cannot tolerate oxygen.
3. sry o I know only 2 i hope it's helpful to U.