Lab Report: Flowers, Fruits and Seeds

Lab Report: Flowers, Fruits, and Seeds

Part 1: Flowers

Directions: Answer the questions below using the picture of the Gladiolus, or Lily flower, below.

1. How many petals does this flower have? From this point of view, I can see 10 colorful petals.
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3. How many stamens does this flower have? I see about 3.
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5. How many stigmas does this flower have? I can see about 6 or 7 stigmas.
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7. Is this the flower of a monocot or a dicot? A monocot.
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9. Explain your answer for question #4. Monocots have veins that are almost always aligned parallel to each other. A monocot will also grow in pairs of three leaves.

10. Is this flower perfect or imperfect? Perfect. This is because a Lillie flower has both male and female parts, the stamens and pistils.

11. Look at the image of the lily ovary below.

How many locules are in this ovary? It is a bit hard to tell, but I am guessing there is about 6.
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14. Part 2: Fruits
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Directions: Answer the questions below using your knowledge and the information from the lesson over fruits.

1 Where would you expect to find the withered sepals and petals on a freshly picked tomato? You would find the sepals and petals on top. This is the green leaf style that most tomatoes have.
16. How about the style and stigma? The style and stigma are found at the bottom of the tomato. Though you may not see it, they will fall off.
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18. How does this compare to the apple fruit? The apple is the same nature.

19. Bean plants have superior ovaries. Where would you expect to find the withered sepals and petals on a freshly picked bean pod? It will be all around the bean pod.
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21. How about the style and stigma? You can find the style and stigma at the very end of the pod.

22. How does this compare to the tomato fruit? Both are similar in almost all aspects, but if you were to take a look at where the ovary is, the placing is different.

Part 3: Seeds

Directions: Answer the questions below using your knowledge and the information from the lesson over fruits.

1 Since there are two seed cotyledons in bean seeds, beans are classified as dicots. The image below shows several bean plants.
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Using the picture above, are the leaves of the bean plants consistent with the venation pattern of the leaves of dicots?

2 If you stain a cut corn kernel with a drop of potassium iodide, the cotyledon and the endosperm, but not the embryo, will stain blue-black. What does this indicate the presence of?
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3 Why is this important to the plant embryo?

4 Examine various stages of the germination of both beans and corn shown in the diagrams below.

List two similarities and two differences between the germination of corn and bean seeds below.