Question

Choose the incorrect statements regarding definition of Living:
(A) Cell division replaces lost cells in certain tissues
(B) In living organisms, growth is from outside
(C) Metabolism is the sum total of all chemical reactions occurring in the living organism
(D) In unicellular organisms, reproduction is not synonymous with the growth

• A. A, C
• B. A, B
• C. B, C
• D. B, D

Hint:

In biology, remember that growth and reproduction can differ in multicellular versus unicellular organisms.

Answer 1

The Correct Option is D

Option (A): Cell division indeed replaces lost cells in certain tissues, making this statement correct.
Option (B): Growth in living organisms happens internally and externally; it is not just from outside. This is incorrect.
Option (C): Metabolism is correctly described as the sum total of all chemical reactions occurring in the living organism, which is true.
Option (D): In unicellular organisms, reproduction is indeed synonymous with growth, as they both involve a form of cellular division and expansion. Hence, this statement is incorrect.

Answer 2

To solve the problem, we need to choose the incorrect statements regarding the definition of living organisms.

1. Understanding the Concept of Living Organisms:
The definition of living organisms includes various characteristics such as metabolism, growth, reproduction, and response to stimuli. We need to check which statement contradicts these characteristics.

2. Analyzing Each Statement:
(A) Cell division replaces lost cells in certain tissues: This is a correct statement because cell division is essential for replacing damaged or dead cells in living organisms.
(B) In living organisms, growth is from outside: This is an incorrect statement because growth in living organisms generally occurs from within (through processes like cell division and enlargement), not merely from outside.
(C) Metabolism is the sum total of all chemical reactions occurring in the living organism: This is a correct statement, as metabolism refers to all the chemical reactions that occur within an organism to maintain life.
(D) In unicellular organisms, reproduction is not synonymous with growth: This is an incorrect statement. In unicellular organisms, reproduction and growth are closely related, as a single cell divides to form a new organism, which involves both growth and reproduction.

3. Identifying the Incorrect Statements:
Both statements (B) and (D) are incorrect, as explained above.

Final Answer:
The incorrect statements are Option D.