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Select correct answers and mark the code
Cells regulate their activity through 1. Flow of energy 2. Flow of materials 3. Flow of information 4. Flow of smoke (A) 1, 2, 3 correct (B) 1 and 2 correct
(C) 2 and 4 correct (D) 1 and 3 correct

A

A

B

B

C

C

D

D

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the statements provided regarding how cells regulate their activity. Let's go through each option step by step. ### Step 1: Analyze the Statements 1. **Flow of Energy**: Cells indeed regulate their activity through the flow of energy. Energy is transferred from food sources (carbohydrates, lipids, proteins) and is converted into ATP, which powers various cellular processes. This statement is **correct**. 2. **Flow of Materials**: Cells also regulate their activities through the flow of materials. This includes the movement of ions, nutrients, and waste products across cell membranes via processes like osmosis, diffusion, and active transport. This statement is **correct**. 3. **Flow of Information**: The flow of information is crucial for cellular regulation. This includes the processes of transcription and translation, where genetic information is transferred from DNA to RNA and then to proteins. This statement is **correct**. 4. **Flow of Smoke**: This statement is incorrect. While smoke may be a byproduct of certain metabolic reactions, it does not play a role in regulating cellular activity. ### Step 2: Identify the Correct Options Now that we have analyzed each statement: - Statements 1, 2, and 3 are correct. - Statement 4 is incorrect. ### Step 3: Match with Given Options Now we will match our findings with the provided options: - (A) 1, 2, 3 correct - **Correct** - (B) 1 and 2 correct - **Incorrect** - (C) 2 and 4 correct - **Incorrect** - (D) 1 and 3 correct - **Incorrect** ### Conclusion The correct answer is **(A) 1, 2, 3 correct**. ---
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