After getting few concepts of science, lets move to one more interesting term, that is transport in plants. The term transport in plants can be defined as, the movement of water and nutrients in the plants using some complex tissues in order to distribute water and nutrients to all parts of the plant. The plant contains two types of complex tissues are named as, xylem and phloem. Solets see the tissues of plants.
1) Xylem : It is a complex tissue made up of both living and non living cells. The xylem is responsible for specially upward movement in plants.
- Non living cells for example : Tracheid, vessels and fibers.
- Xylem also contains living cells such as parenchyma.
- All the cells of xylem play major role in transport or uptake of water and nutrients from the soil. They also uptake minerals from the soil such as Zn, Mo, Fe, B, Na, Ni, N.
2) Phloem : Phloem is also one type of complex tissue in plants that help in transportation of photosynthesis product that is sugar. It is also made up of different type of cells.
- Sieve elements : They are of 2 types. Namely, sieve tube elements and sieve cells. In which sieve tube elements are present in angiosperms and sieve cells are present in gymnopserms.
- Companion cells : These are green cells of phloem.
- Parenchyma cells :It stores and release food material.
- Fiber and sclerids : It provides protection and mechanical strength.
Process of transport in plants :
- The first step in transport of nutrients and water, the roots absorb the nutrients, minerals and water from soil
- Xylem transports nutrients, minerals and water in upward direction, the process is called ascent of sap.
- Water transport to every part of the plant and distributed to leaves also from the leaves transpiration process occurs.
- Leaves take in carbon dioxide via stomata use carbon dioxide and water to make food via photosynthesis release carbon dioxide.
- Then phloem transport sugar to other plant parts.
- Roots take in oxygen which is needed for respiration and release carbon dioxide.
Question and answers :
1) What is transport in plants ?
Answer :The plant contains two types of complex tissues are named as, xylem and phloem. Solets see the tissues of plants.
2) What are the cells involved in transport in plants ?
Answer :The term transport in plants can be defined as, the movement of water and nutrients in the plants using some complex tissues in order to distribute water and nutrients to all parts of the plant.
3) Explain the term xylem.
Answer : It is a complex tissue made up of both living and non living cells. The xylem is responsible for specially upward movement in plants. Non living cells for example : Tracheid, vessels and fibers. Xylem also contains living cells such as parenchyma.All the cells of xylem play major role in transport or uptake of water and nutrients from the soil. They also uptake minerals from the soil such as Zn, Mo, Fe, B, Na, Ni, N.
4) Explain the term phloem.
Answer :Phloem is also one type of complex tissue in plants that help in transportation of photosynthesis product that is sugar. It is also made up of different type of cells.
- Sieve elements : They are of 2 types. Namely, sieve tube elements and sieve cells. In which sieve tube elements are present in angiosperms and sieve cells are present in gymnopserms.
- Companion cells : These are green cells of phloem.
- Parenchyma cells :It stores and release food material.
- Fiber and sclerids : It provides protection and mechanical strength.
5.) Describe the process of transport in plants.
Answer :
- The first step in transport of nutrients and water, the roots absorb the nutrients, minerals and water from soil
- Xylem transports nutrients, minerals and water in upward direction, the process is called ascent of sap.
- Water transport to every part of the plant and distributed to leaves also from the leaves transpiration process occurs.
- Leaves take in carbon dioxide via stomata use carbon dioxide and water to make food via photosynthesis release carbon dioxide.
- Then phloem transport sugar to other plant parts.
- Roots take in oxygen which is needed for respiration and release carbon dioxide.