Photosynthesis - Worksheet | Printable and Distance Learning ... - Free Printable

Let's solve the worksheet step by step.

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Q.1: Label the blanks on the diagram to show the overall process of photosynthesis

We need to label the arrows and boxes around the plant to represent the inputs and outputs of photosynthesis.

The overall equation for photosynthesis is:

> Carbon dioxide + Water + Light energy → Glucose (food) + Oxygen

Now, let’s identify what each arrow represents:

#### Inputs (going into the plant):
- Sunlight → comes from the sun (top left)
- Carbon dioxide (CO₂) → enters through the leaves (from air, shown as clouds)
- Water (H₂O) → absorbed from soil by roots (bottom left)

#### Outputs (coming out of the plant):
- Oxygen (O₂) → released into the air (top right)
- Glucose (C₆H₁₂O₆) → used by the plant for energy and growth (bottom right, represented by sugar cubes)

So, labeling the blanks:

1. Top left blank (sun) → Sunlight
2. Middle left blank (cloud) → Carbon dioxide
3. Bottom left blank (water drop) → Water
4. Top right blank (cloud) → Oxygen
5. Bottom right blank (sugar cubes) → Glucose

✔ Final labels:
- Top left: Sunlight
- Middle left: Carbon dioxide
- Bottom left: Water
- Top right: Oxygen
- Bottom right: Glucose

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Q.2: Fill in the blanks with suitable words

a) Green plants make their own food through a process known as photosynthesis.
✔ *Photosynthesis* is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

b) Carbon dioxide enters the leaf by the way of tiny pores or openings called stomata.
✔ *Stomata* are small openings on the surface of leaves that allow gas exchange (CO₂ in, O₂ out).

c) Plants gather the sun’s energy with light absorbing pigments called chlorophyll.
✔ *Chlorophyll* is the green pigment in chloroplasts that captures light energy.

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✔ Final Answers:

#### Q.1 Labels:
- Top left: Sunlight
- Middle left: Carbon dioxide
- Bottom left: Water
- Top right: Oxygen
- Bottom right: Glucose

#### Q.2 Answers:
a) photosynthesis
b) stomata
c) chlorophyll

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