Concept explainers
Which of the following activities is not carried out by every cell in the body?
- Obtaining O2 and nutrients
- Performing
chemical reactions to acquire energy for the cell’s use - Eliminating wastes
- Largely controlling exchange of materials between the cell and its external environment
- Reproducing
Introduction:
In the biological system, the cell is the basic unit of life. In a multicellular highly differentiated organism, the cells combine to form tissues, the tissues combine to form organs and organs combine to form an organ system. The organ systems together form an organism.
Answer to Problem 1RE
Correct answer:
The correct answer is option (e) reproduction.
Explanation of Solution
Explanation/justification for the correct answer:
Option (e) reproduction. All the cells in the body do not undergo division. There are certain types of cells, which do not divide or divide less. For example, neurons do not divide rapidly. Hence, the correct answer is option (e).
Explanation for incorrect answer:
Option (a) obtaining oxygen and nutrients. All the cells in the body require nutrient and oxygen for their survival, in case, these cells are incapable of obtaining nutrient or oxygen, then they will die.
Option (b) performing a chemical reaction for obtaining the energy required for the cell. All the cells in the universe perform the basic metabolic functions required for their survival and in order to meet these energy requirements, they perform respiration.
Option (c) eliminating waste. During the metabolic reaction, the cells produce many byproducts, which need to be eliminated from the system.
Option (d) controlling the exchange of the substances between the cell and its environment. The cells possess a control system to check the exchange of the substance between the cell and its environment.
All cells are not involved in the process of reproduction. Hence, the correct answer is option (e).
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Chapter 1 Solutions
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