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explain 1. Function of xylem 2. Features and Functions of xylem 3. Fu...

Feb 25, 2024

explain 1. Function of xylem 2. Features and Functions of xylem 3. Function of phloem 4. Function of root hair 5. Function of lignin 6. Vascular bundles 7. Transpiration pull 8. How water is transported in xylem 9. Conditions that affect the transpiration rate

Answer

The xylem is responsible for the transport of water and minerals from the roots to the rest of the plant.

Solution

Structural support: Xylem vessels also provide mechanical support due to their lignified walls

Key Concept

Xylem's primary function

Explanation

Xylem vessels transport water and minerals and provide structural support to plants.

Answer

Features of xylem include vessels and tracheids, and its functions are transport and support.

Solution

Functions: It transports water and minerals, and provides mechanical support

Key Concept

Features and functions of xylem

Explanation

Xylem has specialized structures for efficient water transport and structural support.

Answer

The phloem is responsible for the transport of organic nutrients, particularly sucrose, throughout the plant.

Solution

Key Concept

Phloem's primary function

Explanation

Phloem distributes the products of photosynthesis from sources to sinks within the plant.

Answer

Root hairs increase the surface area for water and mineral absorption from the soil.

Solution

Key Concept

Function of root hairs

Explanation

Root hairs are extensions of root epidermal cells, increasing efficiency in water and nutrient uptake.

Answer

Lignin provides structural support to plant cells, particularly in xylem vessels and tracheids.

Solution

Key Concept

Function of lignin

Explanation

Lignin is a complex polymer that reinforces cell walls, making them rigid and less prone to collapse.

Answer

Vascular bundles consist of xylem and phloem and are responsible for the transport of fluids and nutrients in plants.

Solution

Function: They transport water, minerals, and organic nutrients throughout the plant

Key Concept

Vascular bundles

Explanation

Vascular bundles are the plant's transport system, allowing for the distribution of essential substances.

Answer

Transpiration pull is the main mechanism driving the ascent of water in the xylem.

Solution

Key Concept

Transpiration pull

Explanation

Transpiration pull is a result of water evaporation from leaves, creating a suction force that moves water up the xylem.

Answer

Water is transported in the xylem through a combination of root pressure, capillary action, and transpiration pull.

Solution

Key Concept

Water transport in xylem

Explanation

Water ascends through the xylem due to various physical forces and processes.

Answer

Factors such as light intensity, temperature, humidity, and wind speed affect the transpiration rate.

Solution

Key Concept

Transpiration rate factors

Explanation

Environmental conditions influence the rate at which water is lost from leaves through transpiration.