NEET BIOLOGY

ECOLOGY

ORGANISMS AND THE ENVIRONMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What process uses the principal source of energy input into biological systems?
A
ingestion
B
decomposition
C
photosynthesis
D
respiration
Explanation: 

Detailed explanation-1: -The continual input of energy, mostly from sunlight, sustains the process of life. Sunlight allows plants, algae and cyanobacteria to use photosynthesis to convert carbon dioxide and water into organic compounds like carbohydrates. This process is the fundamental source of organic material in the biosphere.

Detailed explanation-2: -The correct option is D Light from the sun

Detailed explanation-3: -The Sun is the principal source of energy input to biological systems. The Earth receives 2 main types of energy from the Sun: light (solar) and heat.

Detailed explanation-4: -Biological energy The currencies of energy are generally phosphate-containing molecules. ATP is the best known and most abundant of these, but GTP is also an important energy source (energy source for protein synthesis).

Detailed explanation-5: -The ATP molecule is the primary energy source for biological reactions. ATP (adenosine triphosphate) has three phosphate residues as part of the molecule. When they break off, energy is released which can power cellular processes.

There is 1 question to complete.