Question

(i) Energy in the case of higher plants and animals is obtained by
a) Breathing
b) Tissue respiration
c) Organ respiration
d) Digestion of food

Answer 1

Answer:

c)organ respiration

Explanation:

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water

Answer 2

Energy in the case of higher plants and animals is obtained by (b) Tissue respiration.

Explanation:

• All living cells require energy for various activities. This energy is available by the breakdown of simple carbohydrates either using oxygen or without using oxygen.
• Respiration is an energy yielding process and takes place by the oxidation of foodstuffs.
• Higher plants and animals require oxygen in order to respire aerobically.
• However in conditions where oxygen is depleted these organisms perform anaerobic respiration to obtain energy.
• The metabolic process by which living cells absorb oxygen and release carbon dioxide. Also called internal respiration.
• The Sun is the major source of energy for organisms and the ecosystems of which they are a part.
• In photosynthesis process energy rich compounds like carbohydrates are synthesized from simple inorganic compounds like carbon dioxide and water in the presence of chlorophyll and sunlight with liberation of oxygen.
• Photosynthesis is an anabolic and endothermic reaction.