Question : The lungs of a plant are:
Option 1: Leaves
Option 2: Stems
Option 3: Flowers
Option 4: Roots
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Correct Answer: Leaves
Solution : The correct answer is Leaves.
Leaves are sometimes referred to as the "lungs of plants" because they serve an important role in gas exchange, which is analogous to the function of animal lungs. During photosynthesis, plants absorb carbon dioxide (CO2) from the atmosphere via microscopic pores called stomata, mostly found on the underside of leaves. At the same time, it releases oxygen (O2) into the atmosphere as a byproduct of photosynthesis.
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Question : Opium is a plant product obtained from:
Option 1: dried leaves
Option 2: dried latex
Option 3: roots
Option 4: stem bark
Question : In cauliflower plant the useful part is :
Option 1: Underground stem
Option 2: Root
Option 3: Young inflorescence
Option 4: Leaves
Question : A number x, when divided by 289, leaves 18 as the remainder. The same number when divided by 17 leaves y as a remainder. The value of y is:
Option 1: 5
Option 2: 2
Option 3: 7
Option 4: 1
Question : Which of the following is not true about gymnosperms?
Option 1: The dominant phase is sporophytes
Option 2: Vascular bundles are absent
Option 3: Spores are heterosporous
Option 4: Flowers are absent
Question : Which of the following is not a subgroup of the plant kingdom?
Option 1: Thallophyta
Option 2: Angiosperms
Option 3: Pteridophyta
Option 4: Hemichordata
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