Question

2. Differentiate between:
(a) autotrophs and heterotrophs
(b) insectivorous plants and parasitic plants
(c) xylem and phloem​

Answer 1

Answer:

Autotrophs are known as producers because they are able to make their own food from raw materials and energy. Examples include plants, algae, and some types of bacteria. Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs.

The green plants which obtain their food partly from insects are called insectivorous plants. Example -Pitcher plant, Sundew plant, venus fly-trap plant etc. However, the plants which live on or inside another organism and derives their food from it are called parasitic plants. Example - Cuscuta plant.

Phloem. Xylem is the complex tissue of plants, responsible for transporting water and other nutrients to the plants. Phloem is living tissue, responsible for transporting food and other organic materials. Xylem consists of dead cells (parenchyma is the only living cells present in the xylem).

Answer 2

Explanation:

a)

• auto means self and trophic means to feed

• hetero means other and trophic means to feed

• autotrophs make their own food with the help of photosynthesis

• heterotrophs cannot make their own food but depend on autotrophs or other organisms for food

• Example - plants

• Example - giraffe,human being

b)

• Insectivorous plants depend partly on insects for food

• parasitic plants live on or other side of organism and derives their food from it

•Example - Venus flytrap

•Example - Cuscuta plant

c)

• Xylem helps in transport of water

• Phloem helps in transport of food

• Most of the cell are dead cell

• Most of the cell are living

• Xylem goes in only upward direction

• Phloem goes in both directions

• The process by which Xylem transports water is called ascent of sap

• The process by which Phloem transports food food is called transpiration