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1
What is a characteristic common to all plants?
a. All plants have multicolored flowers.
b. All plants are made of cells.
c. All plants are about the same size and shape.
d. All plants use cones and seeds to reproduce.
b. All plants are made of cells.
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2What is the process by which plants obtain
food?
a. stomata
b. chlorophyll
c. chloroplasts
d. photosynthesis
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d. photosynthesis
3Where in the plant does photosynthesis take
place?
a. in chloroplasts in the leaf cells
b. in the plant’s roots
c. in tubes in the stems
d. in stomata on the underside of leaves
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a. in chloroplasts in the leaf cells
4
How do the shape and arrangement of leaves help a plant?
a. by supporting the plant in an upright position
b. by catching the most sunlight
c. by discouraging insects and other pests
d. by helping nutrients move faster throughout the plant
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b. by catching the most sunlight
1
Which plant organ carries materials and also supports the plant?
a. flower
b. root
c. stem
d. leaf
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c. stem
2
What kind of root system spreads out to absorb water and nutrients from a large area?
a. a root system with chlorophyll to make food
b. a taproot system
c. a root hair system
d. a fibrous root system
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d. a fibrous root system
3
What is a characteristic of soft stems such as dandelions have?
a. They carry out photosynthesis just like the leaves do.
b. They grow strong and thick.
c. They produce bark to protect the stem.
d. They are flexible and can bend in your hand.
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a. They carry out photosynthesis just like the leaves do.
4
How do carbon dioxide, oxygen, and water pass into and out of a leaf?
a. through the chloroplasts
b. through chlorophyll
c. through the tubes that carry water and food in the plant
d. through openings on the underside of leaves
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d. through openings on the underside of leaves
1
What is the main job of a flower?
a. to make seeds to produce new flowering plants
b. to produce colorful petals and attractive scents
c. to attract insects, bats, birds, and other living things
d. to cover and protect the developing plant
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a. to make seeds to produce new flowering plants
2
Which part of a complete flower produces pollen?
a. stamens
b. pistil
c. petals
d. sepals
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a. stamens
3
What is the role of the ovary in the process of fertilization?
a. The pollen tube grows deep inside the ovary.
b. Sperm and egg cells combine inside the ovary.
c. Pollen grains are found inside the ovary.
d. Animals are attracted by nectar found inside the ovary.
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b. Sperm and egg cells combine inside the ovary.
4Jennifer is studying the flowers in a local park. She finds a ragweed plant that does not have big flowers or a sweet scent. However, there seem to be many plants of the same kind around it. What can Jennifer conclude about how this plant was pollinated?
a. This plant has incomplete flowers and was self-pollinated.
b. Animals in search of nectar helped pollinate as they moved from flower to flower.
c. Wind blew pollen from the stamens of another plant to pistils of this plant.
d. The colors of the petals and scent attracted animals who carried the pollen.
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c. Wind blew pollen from the stamens of another plant to pistils of this plant.
1
What happens in a flower after fertilization takes place?
a. A pollen tube grows up through the pistil.
b. The flower develops from a tiny bud.
c. More pollen grains form at the top of the pistil.
d. The fertilized egg in the ovary develops into a seed.
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d. The fertilized egg in the ovary develops into a seed.
2
What conditions does a seed need in order to germinate?
a. stored food, soil, time, gravity, and shade
b. pollen, wind, nectar, and an unfertilized egg cell
c. carbon dioxide, nutrients, sunlight, and water
d. water, oxygen, and the right temperature
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d. water, oxygen, and the right temperature
3Which statement describes one way animals help to
scatter seeds?
a. Wind blows tumbleweeds across the land.
b. Some animals gather and bury seeds for winter.
c. Nuts and seeds float and drift along in rivers or the ocean.
d. Wing-shaped fruits of maple trees twirl through the air.
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b. Some animals gather and bury seeds for winter.
4
Where does a seed get the energy it needs to start growing?
a. from sunlight through photosynthesis
b. from the fruit that grows around the seed
c. from food stored inside the seed
d. from the seed coat
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d. from the seed coat
1
How are spores different from seeds?
a. A spore is just a single cell.
b. A spore cannot become dormant.
c. Spores develop into cones instead of flowers.
d. Spores do not grow into new plants.
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a. A spore is just a single cell.
2
What important event can happen during the first step of the fern life cycle?
a. A fertilized egg grows into a plant that produces the next generation.
b. Male and female spore cells combine.
c. A spore can develop into a plant that makes male and female cells.
d. Spore cases burst and spores explode into the air.
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c. A spore can develop into a plant that makes male and female cells.
3
When tulips start from bulbs, which plant parts are used to grow the new plants?
a. underground roots
b. seeds and fruits
c. flowers and seeds
d. leaves and stems
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d. leaves and stems
4
When Jerome puts an African violet stem and leaf into potting mix, which of the following methods is he using to grow the new plant?
a. cuttings
b. grafting
c. bulb culture
d. sprouting buds
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a. cuttings