Tag: botany

Questions Related to botany

Green plants are absent in deep sea. Why?

botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

  1. Light is absent

  2. High pressure

  3. Low temperature

  4. Great depth

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Correct Option: A

Effect of $O _{3}$ in plants, involve:

botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

  1. Stomata burning

  2. Oxidizing burning

  3. Reduced survival

  4. All of above

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Correct Option: D

Most animals and plants can grow with pH, between

botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

  1. 4 and 9

  2. 5 and 9

  3. 6 and 9

  4. 7 and 9

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Correct Option: B

_________ plants have flattened leaf-like stems to carry out photosynthesis.

botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

  1. Prickly pear

  2. Potato

  3. A & B

  4. None of the above

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Correct Option: A
Explanation:

In Opuntia (prickly pear), the stem is modified to a flattened green structure to perform the function of leaves. Leaf-like flattened modified stems are called phylloclades. 


So the correct option is "Prickly pear". 

Nitrates, phosphates and sulphates are plants

botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

  1. Disease

  2. Pollutants

  3. Nutrients

  4. Organic pollutants

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Correct Option: C

Naturally HCs found in atmosphere are produced from the

botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

  1. Plants

  2. Soil

  3. Lithosphere

  4. Crust

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Correct Option: A

The source of atmospheric oxygen is

botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

  1. Nitrogen cycle

  2. Green Plants

  3. Water

  4. Carbon Cycle

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Correct Option: B

Cuticular transpiration is observed mainly in?

botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

  1. Xerophytes

  2. Herbaceous plants

  3. Trees

  4. Shrubs

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Correct Option: A

What reduces amount of light reaching leaf?

botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

  1. Sulfur oxide emission

  2. Carbon dioxide

  3. Dust and Smog

  4. Nitrogen

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Correct Option: C

Which of the following is the major adaptation for a plant to survive in the xerophytic conditions?

botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

  1. Long tap root

  2. Lack of stomata

  3. Spines

  4. Stipular leaves

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Correct Option: C
Explanation:

CactI are among the most drought-resistant plants on the planet, due to their absence of leaves, shallow root systems, ability to store water in their stem, spines for shade and waxy skin to seal in moisture. Xerophytes can have smaller leaves or fewer branches than other plants. An example of leaf surface reduction are the spines of a cactus. Spines also protect the plants from animals and collect moisture too.