Pharmaceutical Botany and Taxonomy Quiz

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which part of the seed does the taproot develop from?

Radicle is the first to grow and will become taproot if it continues to grow

Upper axis - epicotyl

Growing tip of hypocotyl - radicle (correct)

Lower axis - hypocotyl

What is the major function of the root system?

Anchoring the plant firmly to a substrate

Absorbing water and minerals

Producing hormones

All of the above (correct)

Which type of root system is usually seen in monocot plants?

Taproot

Fibrous or diffuse (correct)

Adventitious

All of the above

What is the external structure of a taproot system?

Structure of individual roots Signup and view all the answers

What is an example of a herbaceous taproot?

Carrot Signup and view all the answers

Which root system arises because the radicle dies during or immediately after germination?

Fibrous or diffuse Signup and view all the answers

What are the major functions of the root system?

All of the above Signup and view all the answers

What are the types of root systems mentioned in the text?

All of the above Signup and view all the answers

What is the structure of individual roots in a taproot system called?

Structure of individual roots Signup and view all the answers

Which root system is usually seen in annual plants that are short-lived?

Fibrous or diffuse Signup and view all the answers

Which part of the plant do adventitious roots arise from?

Stems Signup and view all the answers

What is the function of root hairs?

Increase absorptive area Signup and view all the answers

What is the function of the root cap?

Meristem protection Signup and view all the answers

What is the function of Casparian strips in the endodermis?

Control mineral passage Signup and view all the answers

How many xylem poles are present in a monocot root?

Many (polyarch) Signup and view all the answers

Which type of stele is present in a dicot root?

Protostele Signup and view all the answers

What is the primary function of apoplast and symplast in root tissues?

Water and mineral diffusion Signup and view all the answers

How are lateral roots initiated?

By cell divisions in the pericycle Signup and view all the answers

What is the purpose of prop roots in plants?

Additional support and absorption Signup and view all the answers

Which type of modified root is found in bulbs like onions and garlic?

Contractile roots Signup and view all the answers

Study Notes

Seed and Root Development

The taproot develops from the radicle of the seed, which is the embryonic root.

Root Systems Functions

The major function of the root system includes anchorage, nutrient absorption, and water uptake.

Monocot Root System

Monocot plants typically have a fibrous root system, characterized by a network of thin roots.

External Structure of Taproot System

A taproot system features a main central root that grows deeper, with smaller lateral roots branching off.

Herbaceous Taproot Example

An example of a herbaceous taproot is the carrot, known for its edible taproot.

Germination and Root Development

The fibrous root system arises when the radicle dies during or immediately after germination, leading to the development of secondary roots.

Major Functions of Root System

Root systems are responsible for anchoring plants, storing nutrients, and facilitating nutrient and water absorption.

Types of Root Systems

The two main types of root systems are taproot systems and fibrous root systems.

Structure of Individual Roots

The individual roots in a taproot system are referred to as primary roots and their lateral branches.

Annual Plants and Root Systems

Annual plants that are short-lived typically exhibit a fibrous root system.

Adventitious Roots Origin

Adventitious roots arise from non-root parts of the plant, such as stems or leaves.

Function of Root Hairs

Root hairs increase surface area for absorption, enhancing water and nutrient uptake from the soil.

Function of Root Cap

The root cap protects the growing tip of the root as it pushes through the soil, facilitating growth.

Casparian Strips Function

Casparian strips in the endodermis regulate water and nutrient flow into the vascular system, ensuring selective absorption.

Xylem Poles in Monocot Roots

Monocot roots typically contain multiple xylem poles, which are arrangements of xylem tissue.

Stele Structure in Dicot Roots

Dicot roots usually have a central stele structure that consists of a single vascular bundle.

Apoplast and Symplast Functions

Apoplast and symplast serve in plant root tissues to facilitate the movement of water and solutes, with apoplast being the intercellular space and symplast involving cytoplasm.

Lateral Roots Initiation

Lateral roots are initiated from pericycle tissue, which is located just inside the root’s endodermis layer.

Purpose of Prop Roots

Prop roots provide stability and support for plants, especially in windy conditions or shallow soil.

Modified Roots in Bulbs

Modified roots found in bulbs like onions and garlic are known as storage roots, helping in nutrient storage for the bulb.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge of pharmaceutical botany and taxonomy with this quiz. Explore the major functions and organization of root systems, the external structure of taproot systems, diffusion paths in roots, modified roots, and more. Perfect for students of the University of Santo Tomas - Faculty of Pharmacy.