Let's solve each question step by step and explain the reasoning:
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Question 1: Spinach is a _______ of a spinach plant.
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Options: A. Stem, B. Fruit, C. Flower, D. Leaf
Explanation:
Spinach is a leafy green vegetable. The part we eat is the leaf of the spinach plant.
Answer: D. Leaf
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Question 2: Which part of a plant produces pollen?
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Options: A. Seed, B. Root, C. Flower, D. Cell
Explanation:
Pollen is produced in the male reproductive parts of a flower. Flowers are responsible for producing both pollen (male gametes) and ovules (female gametes).
Answer: C. Flower
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Question 3: A tomato is a _______ of a tomato plant.
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Options: A. Stem, B. Fruit, C. Leaf, D. Root
Explanation:
A tomato is the fruit of the tomato plant. It develops from the ovary of the flower after fertilization.
Answer: B. Fruit
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Question 4: Which part of a plant helps keep the plant in an upright position?
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Options: A. Stem, B. Root, C. Sun, D. Branch
Explanation:
The stem is the main structural support of a plant. It holds up the leaves, flowers, and other parts of the plant, allowing it to stand upright.
Answer: A. Stem
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Question 5: What makes the color of leaves green?
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Options: A. Chlorophyll, B. Green Paint, C. Oxygen, D. Cells
Explanation:
Chlorophyll is a green pigment found in the chloroplasts of plant cells. It is responsible for capturing light energy during photosynthesis, which gives leaves their green color.
Answer: A. Chlorophyll
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Question 6: Which of the following is the smallest part of a plant?
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Options: A. Plant seed, B. Plant cell, C. Flower, D. Leaf
Explanation:
Among the given options:
- A
plant seed is larger than a single cell but smaller than a flower or leaf.
- A
plant cell is the basic unit of a plant and is much smaller than a seed, flower, or leaf.
- A
flower and a
leaf are larger structures composed of many cells.
Thus, the smallest part is the
plant cell.
Answer: B. Plant cell
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Final Answers:
1. D. Leaf
2. C. Flower
3. B. Fruit
4. A. Stem
5. A. Chlorophyll
6. B. Plant cell
Boxed Final Answer:
\[
\boxed{D, C, B, A, A, B}
\]
Parent Tip: Review the logic above to help your child master the concept of 2nd grade science worksheet free printables.
