Question

Describe the structure of a Neuron or the detailed process of Photosynthesis.

Hint:

Neurons enable communication in the body, while photosynthesis supports life by producing food and oxygen — both are fundamental biological processes.

Answer 1

Concept: Neurons are the structural and functional units of the nervous system responsible for transmission of impulses. Photosynthesis is a vital biological process that sustains life by producing food and oxygen.
Option 1: Structure of a Neuron A neuron is a specialized cell designed to receive, process, and transmit nerve impulses. 
Main Parts of a Neuron: 
Dendrites: Branched projections that receive signals from other neurons and carry impulses toward the cell body. 
Cell Body (Cyton): Contains the nucleus and cytoplasm. It integrates incoming signals and maintains cell metabolism. 
Axon: A long, cylindrical structure that carries impulses away from the cell body to other neurons or effectors. 
Myelin Sheath (if present): Fatty insulating layer that increases speed of impulse transmission. 
Axon Terminals: End branches that transmit signals across synapses using neurotransmitters. 
Option 2: Detailed Process of Photosynthesis Photosynthesis is the process by which green plants synthesize food using sunlight, carbon dioxide, and water in presence of chlorophyll. Overall Chemical Equation: \[ 6CO_2 + 6H_2O \xrightarrow{\text{light, chlorophyll}} C_6H_{12}O_6 + 6O_2 \] Steps of Photosynthesis: 
Light Absorption: Chlorophyll absorbs sunlight and converts it into chemical energy. 
Photolysis of Water: Water molecules split into hydrogen and oxygen using light energy. Oxygen is released as a byproduct. 
Formation of ATP and NADPH: Energy carriers formed during light reaction. 
Carbon Fixation (Calvin Cycle): Carbon dioxide combines with hydrogen to form glucose. 
Glucose Formation and Storage: Glucose is used for energy or stored as starch.