Last updated on June 28th, 2023 at 09:17 pm
Class 5 Plants are our green friends
Q: What are some examples of things we obtain from plants?
We obtain a wide range of things from plants, including cereals, pulses, vegetables, fruits, wood, fiber, rubber, gum, tea, coffee, and more.
Q: What are the basic parts of a plant?
The basic parts of a plant include roots, stems, leaves, flowers, fruits, and seeds.
Q: What is the function of roots in plants?
Roots serve to anchor the plant in the soil, absorb water and minerals from the soil, and store excess food.
Q: What are some examples of modified roots in plants?
Examples of modified roots in plants include storage roots (e.g. carrot, sweet potato), aerial roots (e.g. banyan trees), and aquatic roots (e.g. water lily).
Q: What is the Shoot System?
It is the aerial part of the plant body that enables a plant to grow taller to gain access to energy-giving light, and helps plants to prepare food.
Q: What is the function of the Stem in plants?
It supports the upper parts of plants, carries water and nutrients from roots to leaves, and stores food for the plant.
Q: What are Tendrils in plants?
They are coil-like structures found in various climbing plants that help them climb up and grow.
Q: What are Runners or Stolons?
They are stems that grow horizontally above the soil and give rise to new plants if their nodes touch the soil.
Q: What are examples of underground modified stems?
Potato, garlic, onion, and ginger.
Q: What is photosynthesis and where does it occur in plants?
Photosynthesis is the process by which plants produce food using sunlight, water, and carbon dioxide. It occurs in the leaves of the plant.
Q: What is the function of stomata in leaves?
The stomata are tiny openings on the surface of the leaves that help in the exchange of gases, allowing carbon dioxide to enter and oxygen to exit.
Q: Name some modified leaves and their functions.
Spines in cactus for protection, tendrils for support in plants like peas, onion leaves as storage organs, needle leaves in plants like pines for water conservation, and Venus flytrap plants with specialized leaves to capture and digest insects.
Q: What is the function of petals in a flower?
Petals are often brightly colored or unusually shaped to attract pollinators.
Q: What are sepals and where are they located in a flower?
Sepals are small and green in color composing the outermost part of a flower. They enclose and protect the bud and may remain after the fruit forms.
Q: What are the three parts of a pistil?
The three parts of a pistil are the stigma, style, and ovary.
Q: What is the function of the anther in a flower?
The anther is the pollen-producing part of a flower.
Q: What is a fruit?
A fruit is a fleshy or dry ripened ovary of a plant, enclosing the seed or seeds.
Q: What is a seed?
A seed is a miniature plant with a protective outer covering called the seed coat, usually with some stored food.
Q: How are seeds dispersed?
Seeds are dispersed either by wind, water, or animals.
Q: Where do most plants grow?
Most plants grow in the ground, with stems above and roots below.
Q: What is seed dispersal?
Seed dispersal refers to the movement of seeds from the parent plant to another location, which is important to prevent overcrowding and to create new colonies.
Q: How are seeds dispersed by wind?
Seeds that are dispersed by wind usually have wing-like husks or fluffy coverings that help them to fly away long distances from the parent plant. Examples of such seeds include dandelion seeds, which develop light and fluffy parachute-like structures.
Q: How are seeds dispersed by water?
Aquatic plants and plants that grow beside water have buoyant, waterproof coverings that allow them to float and disperse their seeds by water. Fruits that float, such as those of the water lily and the coconut palm, are carried by water and can travel long distances.
Q: How are seeds dispersed by animals and humans?
Seeds with sticky hairs, bristles, hooks, or barbs can be transported by sticking to the fur of animals or on the clothing of human beings and can be carried long distances. Birds and other animals may eat fleshy fruits and discard the seeds or pass them out as waste, ready to grow.
Q: What is explosive dispersal?
Explosive dispersal occurs when plants distribute their seeds by ejecting them with force when they are dried in the sun, so that they fall far away from the parent plant. An example of this is plants which belong to the Pea Family.
Q: What is vegetative propagation in plants?
Vegetative propagation is a process by which new organisms arise without the production of seeds or spores. In this process, only one plant is involved, and the offspring is genetically identical to the parent.
Q: What are some parts of the plant that are used for asexual reproduction?
Stems, leaves, and roots of some plants are used for asexual reproduction.
Q: What are some examples of vegetative propagation using stems?
Examples of vegetative propagation using stems are strawberry, grass, ginger, banana, and turmeric.
Q: What are some examples of vegetative propagation using leaves?
Bryophyllum is an example of vegetative propagation using leaves.
Q: What are some examples of vegetative propagation using roots?
Guava, dahlia, and sweet potato are examples of vegetative propagation using roots.
