6-BIOLOGY 1. THE LEAF 1

According to the lesson, which option correctly answers: What does the root system primarily do? According to the lesson, which option correctly answers: What does the root system primarily do?

1 Mark(s)

Absorbing moisture from air or rain Absorbing moisture from air or rain
They help plants obtain oxygen for respiration
Hold the plant firmly and absorb water and minerals

According to the lesson, which root system generally has roots of similar size and diameter? According to the lesson, which root system generally has roots of similar size and diameter?

1 Mark(s)

Fibrous root system Fibrous root system
Food storage Food storage
A tuft of numerous roots A tuft of numerous roots

What are secondary roots? What are secondary roots?

1 Mark(s)

The main root from which secondary roots arise
A single main primary root with branches
Roots that arise from the primary root Roots that arise from the primary root

According to the lesson, which option correctly answers: Which two types of root systems are named in the lesson? According to the lesson, which option correctly answers: Which two types of root systems are named in the lesson?

1 Mark(s)

Its haustoria enter the host and absorb food and water
Tap root and fibrous root Tap root and fibrous root
Pneumatophores Pneumatophores

Which system is the aerial part of a plant? Which system is the aerial part of a plant?

1 Mark(s)

The shoot system The shoot system
The root system The root system
The leaf system The leaf system

Which description correctly identifies the two major systems of a plant mentioned in the lesson? Which description correctly identifies the two major systems of a plant mentioned in the lesson?

1 Mark(s)

The root system and the shoot system The root system and the shoot system
The flower and fruit systems The flower and fruit systems
The seed and leaf systems The seed and leaf systems

According to the lesson, which option correctly answers: What characterizes a tap root system? According to the lesson, which option correctly answers: What characterizes a tap root system?

1 Mark(s)

Pillar-like roots growing downwards from branches
The main root from which secondary roots arise
A single main primary root with branches

Which plant is given as a tap-root example? Which plant is given as a tap-root example?

1 Mark(s)

Mustard Mustard
Carrot Carrot
Banyan Banyan

Where is the root system mainly found? Where is the root system mainly found?

1 Mark(s)

On the lower surface of leaves On the lower surface of leaves
Above the soil Above the soil
In the soil In the soil

What is the primary root? What is the primary root?

1 Mark(s)

The main root from which secondary roots arise
Roots that arise from the primary root Roots that arise from the primary root
A single main primary root with branches

What characterizes a tap root system? What characterizes a tap root system?

1 Mark(s)

A tuft of numerous roots A tuft of numerous roots
Rope-like roots growing down from lower nodes of the stem
A single main primary root with branches

Which description correctly identifies secondary roots? Which description correctly identifies secondary roots?

1 Mark(s)

A tuft of numerous roots A tuft of numerous roots
Roots that arise from the primary root Roots that arise from the primary root
Rope-like roots growing at an angle from lower stem nodes that help in respiration

Which statement best describes the primary root? Which statement best describes the primary root?

1 Mark(s)

Pillar-like roots growing downwards from branches
No distinct main root; many roots form a tuft
The main root from which secondary roots arise

Which two types of root systems are named in the lesson? Which two types of root systems are named in the lesson?

1 Mark(s)

Tap root and fibrous root Tap root and fibrous root
Roots that arise from the primary root Roots that arise from the primary root
Rope-like roots growing at an angle from lower stem nodes that help in respiration

Which system is identified in the lesson as is the aerial part of a plant? Which system is identified in the lesson as is the aerial part of a plant?

1 Mark(s)

The root system The root system
The leaf system The leaf system
The shoot system The shoot system

What characterizes a fibrous root system? What characterizes a fibrous root system?

1 Mark(s)

Rope-like roots growing at an angle from lower stem nodes that help in respiration
No distinct main root; many roots form a tuft
A single main primary root with branches

Based on the lesson, choose the correct answer to: What characterizes a tap root system? Based on the lesson, choose the correct answer to: What characterizes a tap root system?

1 Mark(s)

A single main primary root with branches
Rope-like roots growing down from lower nodes of the stem
Roots that arise from the primary root Roots that arise from the primary root

Which plant is given as a fibrous-root example? Which plant is given as a fibrous-root example?

1 Mark(s)

Banyan Banyan
Rice Rice
Carrot Carrot

What is the usual shape and structure of a fibrous root system? What is the usual shape and structure of a fibrous root system?

1 Mark(s)

A tuft of numerous roots A tuft of numerous roots
Rope-like roots growing at an angle from lower stem nodes that help in respiration
Roots that arise from the primary root Roots that arise from the primary root

Which statement best describes the usual shape and structure of a fibrous root system? Which statement best describes the usual shape and structure of a fibrous root system?

1 Mark(s)

Roots that arise from the primary root Roots that arise from the primary root
Rope-like roots growing down from lower nodes of the stem
A tuft of numerous roots A tuft of numerous roots

What are the two major systems of a plant mentioned in the lesson? What are the two major systems of a plant mentioned in the lesson?

1 Mark(s)

The root system and the shoot system The root system and the shoot system
The flower and fruit systems The flower and fruit systems
The seed and leaf systems The seed and leaf systems

What does the root system primarily do? What does the root system primarily do?

1 Mark(s)

Hold the plant firmly and absorb water and minerals
They help plants obtain oxygen for respiration
Food storage Food storage

Which plant is identified in the lesson as is given as a fibrous-root example? Which plant is identified in the lesson as is given as a fibrous-root example?

1 Mark(s)

Mustard Mustard
Rice Rice
Sugarcane Sugarcane

Which plant is identified in the lesson as is given as a tap-root example? Which plant is identified in the lesson as is given as a tap-root example?

1 Mark(s)

Banyan Banyan
Rice Rice
Mustard Mustard

Which root system has primary, secondary and tertiary roots? Which root system has primary, secondary and tertiary roots?

1 Mark(s)

Tap root system Tap root system
The root system The root system
The leaf system The leaf system

According to the lesson, where is the root system mainly found? According to the lesson, where is the root system mainly found?

1 Mark(s)

On the lower surface of leaves On the lower surface of leaves
In the soil In the soil
Above the soil Above the soil

According to the lesson, which root system has primary, secondary and tertiary roots? According to the lesson, which root system has primary, secondary and tertiary roots?

1 Mark(s)

The root system The root system
Tap root system Tap root system
The shoot system The shoot system

Based on the lesson, choose the correct answer to: Which root system has primary, secondary and tertiary roots? Based on the lesson, choose the correct answer to: Which root system has primary, secondary and tertiary roots?

1 Mark(s)

The leaf system The leaf system
Tap root system Tap root system
The shoot system The shoot system

According to the lesson, which option correctly answers: What characterizes a fibrous root system? According to the lesson, which option correctly answers: What characterizes a fibrous root system?

1 Mark(s)

Pillar-like roots growing downwards from branches
No distinct main root; many roots form a tuft
Finger-like structures that penetrate a host for nutrients and water

Which root system generally has roots of similar size and diameter? Which root system generally has roots of similar size and diameter?

1 Mark(s)

Plants growing in swamps and marshy areas
Roots that arise from the primary root Roots that arise from the primary root
Fibrous root system Fibrous root system

6-BIOLOGY 1. THE LEAF 1 : Question 1 of 30