Unit 7: PlantsBy: Rachel Lea

& Victoria Chris-Anderson

Name:

Date:

Unit 7: Plants Questions

For questions 1-19 choose the correct answer

1. Which of the following controls the opening and closing of the stomata to allow gas exchange?

A. CambiumB. Meristematic tissueC. Guard cellsD. Chloroplasts

2. The formula for photosynthesis is shown below: Light Energy

6CO2+6H2O-----------C6H12O6+6O2

What are the reactants in this process?

A. Light energy+6O2B. 6CO2+6H2OC. C6H12O6+6CO2D. C6H12O6+6O2

3. The epidermis is part of which tissue?

A. Dermal tissueB. Meristematic tissueC. Ground tissueD. Vascular tissue

4. When the stomata is open water enters,

A. True B. False 5. In which of these are cones found?

A. Angiosperms B. Gymnosperms

6. Which of the following increases the roots’ surface area?

A. Lateral rootsB. Root capsC. Root tipsD. Root hairs

7. This cell is the most common type of plant cell that stores starch, oils, and water for the plant.

A. Phloem B. CollenchymaC. ParenchymaD. Sclerenchyma

8. Carries water and dissolved mineral nutrients from the roots of the plant, to the rest of the plant.

A. XylemB. Ground tissueC. PhloemD. Parenchyma

9. What is the function of the vascular, ground, and dermal tissue?

Vascular tissue:

Ground tissue:

Dermal tissue:

10. If he apical meristem of a plant was damaged, what function would be affected?

A. TranspirationB. PhotosynthesisC. Primary growthD. Secondary growth

For 11-19 match each plant part with is definition/description in the box.

11. Sepal

12. Petal

13. Stamen

14. Carpel

15. Ovary

16. Style

17. Filament

18. Anther

19. Stigma

A. Supports anther.B. Where female gametophytes are

produced.C. Covered with a sticky substance that

holds pollen grains.D. Their bright colors often help to attract

animal pollinators.E. Tube that leads from the stigma to the

ovary.F. Produce pollen grains.G. Modified leaves that protect the

developing flower.H. Makes up the innermost layer of a

flower.I. Male structure of a flower.

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Date:

Unit 7: Plants Answer Key/Rational

For questions 1-19 choose the correct answer

Green=correct Red=incorrect

1. Which of the following controls the opening and closing of the stomata to allow gas exchange?

A. Cambium- Cambium growth results in increased stem diameterB. Meristematic tissue- Meristematic tissue produces growth at the tips of the stems

and root tips.C. Guard cells- Guard cells open and close the stomata to allow gas exchangeD. Chloroplasts- Chloroplasts are the main site of photosynthesis and absorb light

energy.

2. The formula for photosynthesis is shown below: Light Energy

6CO2+6H2O-----------C6H12O6+6O2

What are the reactants in this process?

A. Light energy+6O2-incorrectB. 6CO2+6H2O- Carbon dioxide (6CO2) and water (6H2O) are taken into the plant

during photosynthesis. Along with these materials light energy is used in the plant to produce glucose (C6H12O6) and oxygen (6O2). The reactants are the substances changed by a chemical reaction (6CO2 and H2O) and the products are formed by a chemical reaction (C6H12O6 and 6O2).

C. C6H12O6+6CO2-incorrectD. C6H12O6+6O2-incorrect

3. The epidermis is part of which tissue?

A. Dermal tissue- Dermal tissue made up of live parenchyma cells is called epidermis.B. Meristematic tissue-Meristematic tissue produces growth at the tips of the stems

and root tips.C. Ground tissue-Ground tissue is responsible for structure, support, and metabolism

of the plant.D. Vascular tissue- Vascular tissue is made up of xylem and phloem which transport

materials throughout the plant.

4. When the stomata is open water enters,A. True- Incorrect B. False- When the stomata is open, carbon dioxide enters the leaf

while water and oxygen exit.5. In which of these are cones found?

A. Angiosperms- Flowers B. Gymnosperms- Cones

6. Which of the following increases the roots’ surface area?

A. Lateral roots- Lateral roots help with water absorption.B. Root caps- Root caps protect the root’s apical meristem.C. Root tips- Root tips help with water absorption.D. Root hairs- Increase the roots’ surface area.

7. This cell is the most common type of plant cell that stores starch, oils, and water for the plant.

A. Phloem- Phloem is the vascular tissue that carries the products of photosynthesis through the plant.

B. Collenchyma- Collenchyma cells have cell walls that range from thick to thin and are most common in the younger tissues of leaves and shoots.

C. Parenchyma- Parenchyma cells can be found throughout a plant. They are the most common type of plant cell, and they store starch oils and water for the plant.

D. Sclerenchyma- Sclerenchyma supports the cell, even when the cells die.

8. Carries water and dissolved mineral nutrients from the roots of the plant, to the rest of the plant.

A. Xylem- Carries water and dissolved mineral nutrients from the roots of the plant, to the rest of the plant.

B. Ground tissue- Provides support and stores materials in roots and stems.C. Phloem- Carries the products of photosynthesis through the pantD. Parenchyma- Stores starch oils and water.

9. What is the function of the vascular, ground, and dermal tissue?

Vascular tissue: Transports water, mineral nutrients, and organic compounds.

Ground tissue: Provides support and stores materials in roots and stems.

Dermal tissue: Covers and protects the outside of the plant.

10. If he apical meristem of a plant was damaged, what function would be affected?

A. Transpiration- Transpiration is the loss of water vapor from plants. Occurs In leaves.

B. Photosynthesis- Takes place in chloroplasts C. Primary growth- Takes place in the apical meristemD. Secondary growth- Takes place in lateral meristems in the outer trunk layers.

For 11-19 match each plant part with is definition/description in the box.

11. Sepal G

12. Petal D

13. Stamen I

14. Carpel H

15. Ovary B

16. Style E

17. Filament A

18. Anther F

19. Stigma C

A. Supports anther.B. Where female gametophytes are

produced.C. Covered with a sticky substance that

holds pollen grains.D. Their bright colors often help to attract

animal pollinators.E. Tube that leads from the stigma to the

ovary.F. Produce pollen grains.G. Modified leaves that protect the

developing flower.H. Makes up the innermost layer of a

flower.I. Male structure of a flower.

Summary

Plants are very complex organisms that take in carbon dioxide and water, and excrete oxygen while keeping the glucose for itself. A plant contains a root system which anchors the plant in the soil and transports materials, a root cap which protects the apical meristem, and root hairs which increase the roots surface area. Besides roots, a plant is also made up of other structures such as the stem which supports the plant, the leaf which is the primary site of photosynthesis, and the flower made up of sepals and brightly colored petals. The plant also consists of male and female parts. The pistil (which is made up of the stigma, style, carpel with ovules, and an ovary) is the female part, and the stamen (made up of the anther with pollen and the filament) is the male part.

Plants have three different tissues. The first is vascular tissue which contains xylem and phloem. Xylem transports water throughout the plant as phloem transports nutrients. Next, is the ground tissue which is the bulk of the plant and the meristematic tissue which produces growth at the tips of the stem and root tips. Last you have the dermal tissue which provides protection and is located on the leaf with the stomata and guard cells which open and close the stomata for exchanging of gases. As you can see the plant is a very unique organism that helps us humans to survive, without it none of us would be here today.