Biology
Assertion (A): The movement of molecules from their lower concentration to a higher concentration requires energy in the form of ATP.
Reason (R): Active transport is the process during which root hairs of a plant absorb minerals from the soil.
- Both A and R are true.
- Both A and R are false.
- A is true and R is false.
- A is false and R is true.
Answer
Both A and R are true.
Explanation — The minerals have to be absorbed from a level of lower concentration (soil) to a level of higher concentration (cell). This movement of molecules from their lower concentration to a higher concentration requires energy and the process is called Active Transport.
Related Questions
Assertion (A): The food prepared by leaves is transported to all parts of the plant except roots.
Reason (R): Roots are the underground parts of the plant which absorb food material from the soil.
- Both A and R are true.
- Both A and R are false.
- A is true and R is false.
- A is false and R is true.
Assertion (A): Transportation of water in plants from roots to leaves is carried out by the conducting tissue phloem.
Reason (R): Roots absorb water and minerals from the soil which are transported to leaves for various metabolic activities like photosynthesis, transpiration, respiration, etc.
- Both A and R are true.
- Both A and R are false.
- A is true and R is false.
- A is false and R is true.
Assertion (A): Nitrogen is the main constituent of all proteins which helps in the growth and development of plants.
Reason (R): Nitrogen is micronutrient, which means it is required in very small amounts by the plants. It is absorbed from the soil as a nutrient element or mineral.
- Both A and R are true.
- Both A and R are false.
- A is true and R is false.
- A is false and R is true.
Assertion (A): Plants absorb water from the soil through a semi permeable membrane. The process is termed as osmosis.
Reason (R): The outermost layer of root hair cell is the cell wall which is semi permeable in nature, so it helps in the process of osmosis.
- Both A and R are true.
- Both A and R are false.
- A is true and R is false.
- A is false and R is true.