Ground Tissue: Functions and Structure Quiz & Flashcards

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Questions and Answers

What is the primary location of ground tissue in plants?

Only in leaves and flowers

Within all plant organs (correct)

Only in the shoot system

Only in roots and stems

What is the main function of parenchyma cells in seeds?

To facilitate photosynthesis

To promote buoyancy

To provide structural support

To create the endosperm (correct)

What is the role of ground tissue in plant growth?

To regulate plant temperature

To help the plant grow and heal (correct)

To provide protection from injury

To facilitate water absorption

Which cell type is responsible for storing sugar or starch in the root system?

Parenchyma cells Signup and view all the answers

What is the function of palisade mesophyll in parenchyma cells?

To facilitate light absorption and photosynthesis Signup and view all the answers

What is the purpose of ground tissue in aquatic plants?

To promote buoyancy Signup and view all the answers

What is the role of ground tissue in plant organs?

To provide structural support and promote growth Signup and view all the answers

What is the primary function of collenchyma cells in a plant?

To provide structural support throughout the plant's growing shoot system Signup and view all the answers

What is the difference between sclerenchyma cells and other parenchyma cells?

Sclerenchyma cells have a secondary cell wall, while other parenchyma cells do not Signup and view all the answers

Where is the ground tissue system found in a plant?

Between the vascular and dermal tissues of each plant organ Signup and view all the answers

What is the function of the endodermis in a plant's roots?

To facilitate the passage of minerals and nutrients from the soil into the vascular tissue Signup and view all the answers

What is the primary function of the vascular tissue system in a plant?

To transport water, hormones, and minerals to the stem and leaves, and sugar from the leaves to the roots Signup and view all the answers

What is the difference between the xylem and phloem in a plant's vascular tissue system?

The xylem is responsible for transporting water, while the phloem is responsible for transporting sugar Signup and view all the answers

What is the function of palisade mesophyll in a plant's leaves?

To facilitate photosynthesis in plant leaves Signup and view all the answers

What is the function of medullary rays in a plant's woody stem?

To transport sap to the plant's outer edge Signup and view all the answers

Study Notes

Ground Tissue Overview

Ground tissue is the most abundant part of a plant, found within all plant organs.
It includes underground organs (roots, tubers, rhizomes) and above-ground organs (stem, leaves, petiole, buds, flowers, fruits).

Ground Tissue Functions

Helps plants grow, heal after injury, and produce and store food.
Provides structural support, allowing plants to stand upright.
Promotes buoyancy in aquatic plants.

Cell Types in Ground Tissue

Parenchyma cells: most common, can divide into any plant cell, contain chloroplasts and palisade mesophyll for light absorption and photosynthesis.
Collenchyma cells: have thicker cell walls, provide structural support, found in corner of angled stems or bundles of vascular tissue.
Sclerenchyma cells: hard and tough, die at maturity, provide structural support in mature stems, source of fiber for rope and linen.

Cell Wall Characteristics

Primary cell wall: elastic, allows cells to grow and expand.
Secondary cell wall (in sclerenchyma cells): rigid and inflexible, contains lignin, provides structural support in trees and shrubs.

Ground Tissue System

Found within each plant organ, consists of different types of tissue.
In leaves: palisade mesophyll, site of photosynthesis.
In stems: cortex (outer layer) and pith (spongy center).
In roots: cortex (outer layer) and pith (center), facilitate storage of sugar or starch.

Additional Ground Tissue Types

Endodermis: site where minerals and nutrients pass from soil into vascular tissue system.
Pericycle: ring of tissue separating endodermis from vascular tissue system.
Medullary rays: criss-cross vascular tissue, transport sap to plant's outer edge.
Ground meristem: site of plant growth via cellular division, found in root and shoot tips.

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Description

Learn about the structure and function of ground tissue in plants, including its location and role in different plant organs. Discover the importance of ground tissue in the root and shoot systems.