Biology
Assertion: Root hairs are very important for the survival of plants as they absorb the raw materials for photosynthesis (water and dissolved minerals) from the soil.
Reason: Photosynthesis occurs in the chloroplasts of leaf cells.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
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Answer
Both A and R are true but R is not the correct explanation of A.
Reason — A is true as root hairs increase the surface area of roots and absorb water and minerals, which are essential raw materials needed for photosynthesis.
R is true as photosynthesis takes place in the chloroplasts, mainly present in leaf cells.
Therefore, Both A and R are true but R is not the correct explanation of A is the correct option.
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Related Questions
Which of the following are non-living cell inclusions ?
- Nucleolus
- Genes
- Vacuoles
- Chromosomes
Assertion: Every organism, whether big or small, begins its life as a single cell.
Reason: The size of a single cell varies among different organisms.
- Both A and R are true and R is the correct explanation of A.
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Assertion: The cell membrane of a cell is selectively permeable as it allows the entry or exit of certain substances only.
Reason: The cell membrane acts as a rigid barrier, protecting cells from mechanical injury and pathogen attack.
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Assertion: The nucleus is an integral part of a cell which contains a definite number of chromosomes in each cell of every species.
Reason: Chromosomes carry hereditary units called genes, responsible for transmitting characteristics from parents to offsprings.
- Both A and R are true and R is the correct explanation of A.
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