What Have You Learned About Plants

Organisms that produce their own food are called

• autotrophs

• heterotrophs

• herbivores

The green pigment found in chloroplasts of plants is called

• carotene

• chlorophyll

• carbon dioxide

Which of the following is a nonvascular plant?

• moss

• fern

• tree

Plant cells are enclosed by a

• vacuole

• chloroplast

• cell wall

In vascular plants, water moves through which tissue?

• xylem

• phloem

• rhizoids

Which type of plant has seeds that are encased in a protective fruit?

• gymnosperms

• angiosperms

• conifers

Animals are helpful to plants in the process of

• germination

• pollination

• fertilization

Because it lives for many years, a maple tree is

• perennial

• annual

• biennial

To which three stimuli do plants respond?

• water, light, and sun

• water, soil, and touch

• touch, gravity, and light

When chlorophyll in leaves breaks down, ________.

• photosynthesis begins

• the plant becomes very active

• yellow and orange pigments become visible