G7 plants V2

• New lesson editor

Biology

Grade 7 – English

Unit III Terrestrial Life

Chapter 1: Plants

Al Mabarrat Association

Part 2

Objectives

2. Specify the role of each plant’s part.

3. Define autotroph and heterotroph.

4. Differentiate between the two types of roots.

1. The Parts of the plant

Roots

Flower

Green

leaves

Stem

2. Role of each part

Roots

Flower

Green

leaves

Stem

1. Roots:

a. Process:

2. Role of each part

Absorb water and mineral salts from the soil

1. Roots:

b. function:

2. Role of each part

• Provide anchoring of the plant in the soil.

• Some can store sugar and carbohydrates.

1. Roots:

c. Types of roots:

2. Role of each part

1. Roots:

c. Types of roots:

2. Role of each part

Tap root

1. Roots:

c. Types of roots:

2. Role of each part

Fibrous root

2. Role of each part

Roots

Flower

Green

leaves

Stem

II. Stem:

a. Process:

2. Role of each part

Made of 2 conducting vessels:

Xylem and Phloem.

II. Stem:

a. Process:

2. Role of each part

Xylem: Conduct water and mineral salts (crude sap) from the roots to the leaf.

Water + mineral salt = crude sap

Roots 🡪 leaf

II. Stem:

a. Process:

2. Role of each part

Phloem: Conduct the glucose and water (elaborated sap) from the leaf to other parts of the plant.

Glucose + water = elaborated sap

Leaf 🡪 other parts of the plant

II. Stem:

b. Function:

2. Role of each part

• Provide support to the plant.

• Some stem acts as storage organ (potatoes)

2. Role of each part

Roots

Flower

Green

leaves

Stem

III . Leaves:

1. Function: 1st function, Site of

photosynthesis 🡪 food making factory

2. Role of each part

III . Leaves:

1. Function: 2nd function, site of respiration.

2. Role of each part

III. Leaves:

b. characteristics:

Leaves contain chlorophyll

It give the plant its green color it is the site of photosynthesis

2. Role of each part

2. Role of each part

Roots

Flower

Green

leaves

Stem

IV. Flower:

1. Function:

Some flowers are transformed into fruits

2. Role of each part

IV. Flower:

1. Function:

Some flowers are transformed into fruits

2. Role of each part

IV. Flower:

1. Function:

Site of reproduction

2. Role of each part

3. Characteristics of plants.

1. Multicellular: Made up of more than one cell.

3. Characteristics of plants.

2. Autotroph: An organism that can manufacture its own food (Glucose) by a process called photosynthesis.

3. Characteristics of plants.

• Chloroplast: An organelle that contains chlorophyll and performs photosynthesis.

• Chlorophyll: A green pigment present in green plants that absorbs sun light (all colors except green which is reflected) to make photosynthesis.

Underline your biology copy book as follows

CW(2)

Unit III, chapter 1 plants

Date

Application 2:

Construct a table showing the parts of the green plant, the process in each part, the function and characteristics of each part.

Parts of the plant

Title:

A table showing the parts of the green plant, the process in each part, the function and characteristics of each part.

Application 3:

a. List the characteristics of a green plant.

b. Define autotrophs and heterotrophs and give an example in each case.

a. Characteristics of green plants:

Multicellular: Made up of more than one cell.

Autotroph: An organism that can manufacture its own food (Glucose) by a process called photosynthesis.

Chloroplast: An organelle that contains chlorophyll and performs photosynthesis.

Chlorophyll: A green pigment present in green plants that absorbs sun light (all colors except green which is reflected) to make photosynthesis.

b. Definition of autotrophs and heterotrophs:

HW(1)

Unit III, chapter 1 plants

Date

Copy these questions and solve it, then apply the correction using a black pen depending on the answer key on the coming video

Parts of the plant

Exercise 1: Choose the correct answer

 

Exercise 2: Answer by true or false, then correct the wrong statement. (Write the entire sentence)

 

1. Xylem is a conducting vessel responsible for transporting the elaborated sap.

2. Root hairs decrease the surface area of absorption.

3. Chlorophyll is a violet pigment that absorbs all the colors of light and reflects the violet color.

4. Stem is the part of the plant responsible for absorbing water and mineral salt.

5. Elaborated sap is the substance produced by the green plants during photosynthesis.

Exercise 3:

Match the terms in the first column with its definition in the second column