Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

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

Green plants are absent in deep sea. Why?

  1. Light is absent

  2. High pressure

  3. Low temperature

  4. Great depth
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Photosynthesis, which is essential for green plants, requires light. In the deep sea, light cannot penetrate, making it impossible for green plants to survive.

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

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

  1. Stomata burning

  2. Oxidizing burning

  3. Reduced survival

  4. All of above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ozone (O3) is a strong oxidant that can cause damage to plant tissues, including burning of stomata, oxidative stress, and reduced survival rates.

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

Most animals and plants can grow with pH, between

  1. 4 and 9

  2. 5 and 9

  3. 6 and 9

  4. 7 and 9
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Most plants and animals have evolved to thrive within a relatively neutral pH range, typically between 5 and 9, as extreme acidity or alkalinity interferes with biological processes.

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

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

  1. Prickly pear

  2. Potato

  3. A & B

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
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". 

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

Nitrates, phosphates and sulphates are plants

  1. Disease

  2. Pollutants

  3. Nutrients

  4. Organic pollutants
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Nitrates, phosphates, and sulphates are essential inorganic compounds that plants absorb from the soil to synthesize proteins and other vital molecules, thus acting as nutrients.

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

Naturally HCs found in atmosphere are produced from the

  1. Plants

  2. Soil

  3. Lithosphere

  4. Crust
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Many plants, especially certain trees and shrubs, emit volatile organic compounds (VOCs) and hydrocarbons into the atmosphere as part of their natural metabolic processes.

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

The source of atmospheric oxygen is

  1. Nitrogen cycle

  2. Green Plants

  3. Water

  4. Carbon Cycle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Atmospheric oxygen is primarily replenished through the process of photosynthesis, which is carried out by green plants, algae, and cyanobacteria.

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

Cuticular transpiration is observed mainly in?

  1. Xerophytes

  2. Herbaceous plants

  3. Trees

  4. Shrubs
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Xerophytes are plants adapted to dry environments. They often have a thick waxy cuticle to prevent water loss, and cuticular transpiration becomes a significant pathway for water loss in these conditions.

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

What reduces amount of light reaching leaf?

  1. Sulfur oxide emission

  2. Carbon dioxide

  3. Dust and Smog

  4. Nitrogen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Dust and smog particles suspended in the air scatter and absorb sunlight, thereby reducing the intensity and quality of light that reaches the leaf surface for photosynthesis.

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

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

  1. Long tap root

  2. Lack of stomata

  3. Spines

  4. Stipular leaves
Reveal answer Fill a bubble to check yourself
C Correct answer
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.