Problem: Fill in the blanks with the correct answers related to the process of photosynthesis.
#### Given Information:
-
Water: food, transpiration
-
Carbon dioxide: xylem, process
-
Phloem: sunlight, guard cells
-
Stomata: chlorophyll
#### Questions:
1. Photosynthesis is the process by which plants make their own ________.
2. Plants use ________, ________, and ________ to produce glucose and oxygen.
3. The green substance called ________ helps in absorbing sunlight.
4. The small pores called ________ help in absorbing carbon dioxide.
5. The ________ helps in controlling the rate of transpiration.
6. Water is transported from the roots to the stem and leaves via the ________.
---
Solution:
#### Step-by-Step Explanation:
1.
Photosynthesis is the process by which plants make their own ________.
- Photosynthesis is the process by which plants produce their own
food (glucose). This is the primary purpose of photosynthesis.
-
Answer: food
2.
Plants use ________, ________, and ________ to produce glucose and oxygen.
- Plants require three main components for photosynthesis:
-
Sunlight: as the energy source.
-
Water: absorbed through the roots.
-
Carbon dioxide: absorbed through the stomata.
-
Answer: sunlight, water, carbon dioxide
3.
The green substance called ________ helps in absorbing sunlight.
- Chlorophyll is the green pigment found in plant cells that absorbs sunlight during photosynthesis.
-
Answer: chlorophyll
4.
The small pores called ________ help in absorbing carbon dioxide.
- Stomata are tiny openings on the surface of leaves that allow gases (such as carbon dioxide) to enter the plant and water vapor to escape.
-
Answer: stomata
5.
The ________ helps in controlling the rate of transpiration.
- Guard cells surround the stomata and regulate their opening and closing, thereby controlling the rate of transpiration (loss of water vapor).
-
Answer: guard cells
6.
Water is transported from the roots to the stem and leaves via the ________.
- Xylem is a type of vascular tissue in plants that transports water and minerals from the roots to the rest of the plant.
-
Answer: xylem
---
Final Answers:
1.
food
2.
sunlight, water, carbon dioxide
3.
chlorophyll
4.
stomata
5.
guard cells
6.
xylem
Boxed Final Answer:
\[
\boxed{\text{food, sunlight, water, carbon dioxide, chlorophyll, stomata, guard cells, xylem}}
\]
Parent Tip: Review the logic above to help your child master the concept of photosynthesis worksheet 7th grade.
