CH 5: Uptake of Water and Minerals in Plant Roots

How do root hairs increase the absorption of water and minerals from the soil?

By increasing the surface area available for absorption

In the process of osmosis in root hairs, water molecules move from __________.

an area of higher water concentration to an area of lower water concentration

How are mineral salts absorbed by plant cells from the soil?

Actively by moving against their concentration gradient

Which structure in the root prevents water movement along the apoplast pathway?

Casparian strip Signup and view all the answers

How does water move through the symplast pathway in roots?

Through interconnected cytoplasm of cells Signup and view all the answers

Which pathway involves water moving along cell walls and intercellular spaces without crossing cell membranes?

Apoplast pathway Signup and view all the answers

Active transport of minerals involves moving them __________ their concentration gradient.

Against Signup and view all the answers

What is the role of root hairs in the uptake of water and minerals from the soil?

Increase surface area for absorption Signup and view all the answers

What is the role of the Casparian strip at the endodermis?

It acts as a barrier forcing substances to enter the symplast to reach the vascular cylinder. Signup and view all the answers

What is translocation in plants?

Process by which water and minerals are moved from roots to leaves. Signup and view all the answers

How does root pressure contribute to water movement in plants?

It generates pressure to push water up through the xylem. Signup and view all the answers

What is the primary force driving capillarity in plant physiology?

Adhesion and cohesion Signup and view all the answers

How does sugar transport occur in plants?

Actively loading sucrose into sieve tubes of the phloem Signup and view all the answers

What causes water to move into sieve tubes of phloem in plants?

Adhesion and cohesion forces Signup and view all the answers

What investigation helps understand how adhesion and cohesion contribute to water movement against gravity?

Investigation of capillarity Signup and view all the answers

'Translocation' is essential for which aspect of plant physiology?

Water movement from roots to leaves Signup and view all the answers

What practical investigation is used to observe the rise of water in capillary tubes due to root pressure?

Investigation of root pressure Signup and view all the answers

What is the primary function of sugar transport in plants?

Actively loading sucrose into sieve tubes for transportation Signup and view all the answers

Which pathway for water movement involves crossing cell membranes?

Transmembrane Pathway Signup and view all the answers

What process primarily facilitates the absorption of water through root hairs?

Osmosis Signup and view all the answers

Which structure in the root prevents water movement along the apoplast pathway?

Casparian Strip Signup and view all the answers

How are mineral salts absorbed by plant cells from the soil?

Active Transport Signup and view all the answers

What happens to water molecules during the process of osmosis in root hairs?

They move from higher water concentration to lower water concentration Signup and view all the answers

Which pathway involves water moving along cell walls and intercellular spaces without crossing cell membranes?

Apoplast Pathway Signup and view all the answers

What is the role of root hairs in the uptake of water and minerals from the soil?

They increase the surface area available for absorption Signup and view all the answers

What is the primary function of sugar transport in plants?

To distribute sugar throughout the plant Signup and view all the answers

What investigation helps understand how adhesion and cohesion contribute to water movement against gravity?

Investigating the Rise of Water in Capillary Tubes Signup and view all the answers

In which pathway for water movement do cells interconnect through plasmodesmata?

Symplast Pathway Signup and view all the answers

Which of the following best describes the role of the Casparian strip in plant physiology?

It prevents water movement along the apoplast pathway Signup and view all the answers

What is the primary force driving capillarity in plant physiology?

Cohesion and adhesion Signup and view all the answers

How does sugar transport occur in plants?

Actively loaded into the sieve tubes of the phloem Signup and view all the answers

What is the primary function of sugar transport in plants?

To transport nutrients to various parts of the plant Signup and view all the answers

Which of the following does not contribute to water movement in plants?

Photosynthesis Signup and view all the answers

What causes water to move into sieve tubes of phloem in plants?

Osmosis Signup and view all the answers

What is translocation in plants?

The process of transporting water and minerals from the roots to the leaves Signup and view all the answers

Which of the following is not a mechanism of movement in translocation?

Photosynthesis Signup and view all the answers

Which of the following is not a practical investigation related to fluid dynamics in plants?

Investigation of photosynthesis rate Signup and view all the answers

What is the role of cohesion and adhesion in plant physiology?

They facilitate the process of capillarity Signup and view all the answers

What mechanism allows plants to absorb mineral salts against their concentration gradient?

Active transport Signup and view all the answers

What mechanism is responsible for the active loading of sucrose into the sieve tubes of the phloem in leaves?

Active transport Signup and view all the answers

Which pathway does water follow after reaching the Casparian strip in the endodermis?

Transmembrane pathway Signup and view all the answers

What type of transport is responsible for water movement along the symplast pathway through plasmodesmata?

Passive transport Signup and view all the answers

Which force contributes to the movement of water and minerals from the roots to the leaves through the xylem?

Cohesive force Signup and view all the answers

Which statement best describes the function of the Casparian strip in plant physiology?

It prevents water and dissolved substances from moving along the apoplast pathway Signup and view all the answers

Which pathway plays a crucial role in allowing water to reach the Casparian strip in the endodermis?

Apoplast pathway Signup and view all the answers

What is the primary force driving water movement in the symplast pathway?

Osmosis Signup and view all the answers

Which mechanism of solute transport in plants is driven by the concentration gradient?

Passive transport Signup and view all the answers

Which process primarily facilitates the absorption of water through root hairs?

Osmosis Signup and view all the answers

Which investigation is used to quantify the rate of transpiration under various environmental conditions?

Measuring the speed of movement of an air bubble in a capillary tube attached to a leafy shoot Signup and view all the answers

What causes water to move from the soil into the root hairs during the process of osmosis?

Lower water concentration in the root hairs Signup and view all the answers

What is the role of cohesion and adhesion in the process of capillarity?

They help water rise through the narrow tubes in the xylem Signup and view all the answers

Which statement best describes the process of translocation?

It is the process by which water and minerals are moved from the roots to the leaves Signup and view all the answers

How does the Casparian strip affect water movement in the root?

It blocks water movement along the apoplast pathway Signup and view all the answers

What is the primary function of sugar transport in plants?

It is essential for plant nutrition and growth Signup and view all the answers

Which pathway for water movement involves crossing cell membranes and moving through the cytoplasm?

Symplast pathway Signup and view all the answers

How does active transport enable plants to absorb mineral salts from the soil?

By using energy to move against their concentration gradient Signup and view all the answers

What is the role of root pressure in the movement of water through the xylem?

It helps push water up through the xylem towards the leaves Signup and view all the answers

Which statement best describes the function of the phloem in plant physiology?

It is responsible for the transport of sucrose from the leaves to various parts of the plant Signup and view all the answers

CH 5: Uptake of Water and Minerals in Plant Roots

Questions and Answers

How do root hairs increase the absorption of water and minerals from the soil?

In the process of osmosis in root hairs, water molecules move from __________.

How are mineral salts absorbed by plant cells from the soil?

Which structure in the root prevents water movement along the apoplast pathway?

How does water move through the symplast pathway in roots?

Which pathway involves water moving along cell walls and intercellular spaces without crossing cell membranes?

Active transport of minerals involves moving them __________ their concentration gradient.

What is the role of root hairs in the uptake of water and minerals from the soil?

What is the role of the Casparian strip at the endodermis?

What is translocation in plants?

How does root pressure contribute to water movement in plants?

What is the primary force driving capillarity in plant physiology?

How does sugar transport occur in plants?

What causes water to move into sieve tubes of phloem in plants?

What investigation helps understand how adhesion and cohesion contribute to water movement against gravity?

'Translocation' is essential for which aspect of plant physiology?

What practical investigation is used to observe the rise of water in capillary tubes due to root pressure?

What is the primary function of sugar transport in plants?

Which pathway for water movement involves crossing cell membranes?

What process primarily facilitates the absorption of water through root hairs?

Which structure in the root prevents water movement along the apoplast pathway?

How are mineral salts absorbed by plant cells from the soil?

What happens to water molecules during the process of osmosis in root hairs?

Which pathway involves water moving along cell walls and intercellular spaces without crossing cell membranes?

What is the role of root hairs in the uptake of water and minerals from the soil?

What is the primary function of sugar transport in plants?

What investigation helps understand how adhesion and cohesion contribute to water movement against gravity?

In which pathway for water movement do cells interconnect through plasmodesmata?

Which of the following best describes the role of the Casparian strip in plant physiology?

What is the primary force driving capillarity in plant physiology?

How does sugar transport occur in plants?

What is the primary function of sugar transport in plants?

Which of the following does not contribute to water movement in plants?

What causes water to move into sieve tubes of phloem in plants?

What is translocation in plants?

Which of the following is not a mechanism of movement in translocation?

Which of the following is not a practical investigation related to fluid dynamics in plants?

What is the role of cohesion and adhesion in plant physiology?

What mechanism allows plants to absorb mineral salts against their concentration gradient?

What mechanism is responsible for the active loading of sucrose into the sieve tubes of the phloem in leaves?

Which pathway does water follow after reaching the Casparian strip in the endodermis?

What type of transport is responsible for water movement along the symplast pathway through plasmodesmata?

Which force contributes to the movement of water and minerals from the roots to the leaves through the xylem?

Which statement best describes the function of the Casparian strip in plant physiology?

Which pathway plays a crucial role in allowing water to reach the Casparian strip in the endodermis?

What is the primary force driving water movement in the symplast pathway?

Which mechanism of solute transport in plants is driven by the concentration gradient?

Which process primarily facilitates the absorption of water through root hairs?

Which investigation is used to quantify the rate of transpiration under various environmental conditions?

What causes water to move from the soil into the root hairs during the process of osmosis?

What is the role of cohesion and adhesion in the process of capillarity?

Which statement best describes the process of translocation?

How does the Casparian strip affect water movement in the root?

What is the primary function of sugar transport in plants?

Which pathway for water movement involves crossing cell membranes and moving through the cytoplasm?

How does active transport enable plants to absorb mineral salts from the soil?

What is the role of root pressure in the movement of water through the xylem?

Which statement best describes the function of the phloem in plant physiology?

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