Question
Waste products formed in body by energy generation processes are desirable to remove by which of the following life processes?
This question was previously asked in
RRB ALP 2025 CBT 2 Wiremen Question Paper (28-Jul-2026) (Shift 2)
The correct answer is
Excretion
Understanding Body Waste Removal
The body generates waste products as a natural consequence of metabolic processes, particularly during energy generation. These byproducts, often toxic, must be efficiently removed to maintain health.
Evaluating Life Processes for Waste Removal
Life processes are essential functions that organisms perform to survive. The removal of metabolic waste products from the body is specifically handled by one key process:
- Excretion: This is the biological process where metabolic waste products are eliminated from the body. Examples include urea, carbon dioxide, and excess salts.
- Digestion: This process breaks down food into smaller molecules that can be absorbed by the body. It deals with undigested food material, not metabolic waste.
- Nutrition: This involves the intake, absorption, and assimilation of food substances required for growth, metabolism, and repair. It's about acquiring necessary substances, not removing waste.
- Circulation: This system transports nutrients, oxygen, hormones, and also carries waste products (like carbon dioxide and urea) to the organs responsible for their removal (e.g., lungs, kidneys). However, circulation itself does not eliminate the waste from the body.
Therefore, the life process specifically designed for removing waste products formed by energy generation processes is excretion.
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