CBSE Questions for Class 6 Biology Getting To Know Plants Quiz 1 - MCQExams.com

The number of fine outgrowths present on the surface of roots is called _______.
  • Root nodes
  • Rootlets
  • Root hairs
  • Tap root
Which gas is released in plants during the process of photosynthesis?
  • Carbon dioxide
  • Oxygen
  • Nitrogen
  • Hydrogen
Strawberry is a:
  • Twiner
  • Creeper
  • Climber
  • Trailer
Root hair are present in
  • Zone of the cell division
  • Tracheids
  • Zone of maturation
  • Zone of root hairs
Why does the stem become coloured when placed in a coloured solution?
  • Water moves up the stem
  • Stem is permeable to the colour molecules
  • Stem is impermeable to water
  • Water moves down the stem
Glucose, synthesized in leaves are transported in the form of 
  • Starch
  • Sucrose
  • Fructose
  • Carbon dioxide
Roots are responsible for the synthesis of food in plants.
  • True
  • False
The process of uptake of CO$$_{2}$$ and release of O$$_{2}$$ by plants is known as:
  • Photosynthesis
  • Endosmosis
  • Transpiration
  • Respiration
When a stem is placed in a glass with coloured water, what do you observe?
  • Leaves become coloured first
  • Stems and leaves remain colourless
  • Stems become coloured first
  • All of the above
Root hair have ................. walls.
  • Thick
  • Thin
  • Both
  • Cuticular
Nodulated roots occur in:
  • Pea
  • Wheat
  • Mustard
  • Rice
The main function of a leaf is:
  • Transpiration
  • Exchange of gases
  • Photosynthesis
  • Cooling
Which of the following process in the plants is responsible for the release of oxygen?
  • Respiration
  • Digestion
  • Photosynthesis
  • Reproduction
Phenomenon which convert light energy into chemical energy is:
  • Respiration
  • Photosynthesis
  • Transpiration
  • Metabolism
Which of the following is not needed for photosynthesis?
  • Iodine solution
  • Carbon dioxide
  • Chlorophyll
  • Water
  • If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  • If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  • If the assertion is true but the reason is false
  • If both the assertion and reason are false
State the order in which various parts of flower are arranged from outer side to inner side.
  • Carpel $$\rightarrow$$ Stamen $$\rightarrow$$ Petals $$\rightarrow$$ Sepals
  • Sepals $$\rightarrow$$ Petals $$\rightarrow$$ Stamen $$\rightarrow$$ Carpel
  • Petals $$\rightarrow$$ Sepals $$\rightarrow$$ Stamen $$\rightarrow$$ Carpel
  • Sepals $$\rightarrow$$ Petals $$\rightarrow$$ Carpel $$\rightarrow$$ Stamen
Plants that are shorter than trees and have a bushy appearance are called ____________.
  • Short trees
  • Shrubs
  • Herbs
  • Grasses
Female part of the flower is called _______.
  • Stamen
  • Pistil
  • Pollen tube
  • Petal
Which one of the following is the male part of a flower?
  • Stamen
  • Stigma
  • Egg
  • Pollen tube
Roots breathe through
  • Stomata
  • Lenticels
  • Spiracles
  • Root hair
'Quiescent centre' is found in:
  • Leaf tip
  • Shoot tip
  • Root tip
  • Flower
Plants excrete gases through 
  • Microscopic pores in leaves
  • Small porous roots
  • Flowers
  • Seeds
To survive, all plants needs _________.
  • Roots, leaves and stems
  • Light, soil and nutrients
  • Food, water and air
  • Eyes, nose and ears
In a plant, the following part performs photosynthesis:
  • Leaves
  • Seed
  • Roots
  • Root nodules
Water is absorbed by ............... part of a plant.
  • Root
  • Stem
  • Flower
  • Seed
The medium-sized plants which grow to a height of 8 -9 feet are called ______.
  • Shrubs
  • Herbs
  • Trees
  • Long trees
Which of the following are called food factories of the plants?
  • Leaves
  • Stem
  • Roots
  • Flowers
Veins
  • Absorb water and minerals from the soil.
  • Absorb carbon dioxide from the atmosphere.
  • Transport water, food and minerals in a leaf.
  • Release oxygen and carbon dioxide into the atmosphere.
Which of the following is not a function of the roots?
  • Anchoring of plant
  • Absorption of water
  • Absorption of mineral salts
  • Preparation of starch
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