Plant anatomy
Vascular Transport
Gymnosperms vs. Angiosperms
Roots and Stems
Life Cycles and Diversity
100

This waxy outer layer is produced by epidermal cells to help reduce water evaporation from the leaf.

Cuticle

100

This type of vascular tissue is responsible for carrying water and dissolved nutrients from the roots to the stem and leaves.

Xylem

100

These seed plants produce flowers and seeds that are part of a fruit.

angiosperms

100

State one important function of roots for the plant?

Anchorage

support

storing food

100

These plants complete their entire life cycle—growing, flowering, and seeding—in just one growing season.

annuals

200

These are the small openings in the epidermis of a leaf that allow carbon dioxide, oxygen, and water vapor to pass through.

stomata

200

This type of vascular tissue carries dissolved sugars throughout the plant. Answer: What is phloem?


Phloem

200

In these types of plants, seeds are produced in a cone rather than a fruit. 

gymnosperms

200

Stems that are soft and green are classified as this type

herbaceous

200

Plants that can live for more than two growing seasons, such as trees and shrubs, are called this.

perennials

300

These two cells surround each stoma and perform this critical function of controlling the size of the stoma.


Guard cells

300

These are the two types of cells that make up phloem tissue.

 sieve-tube elements and companion cells?

300

This group of gymnosperms, which includes pines and redwoods, is the most familiar and grows on every continent except Antarctica.

conifers

300

These types of stems are stiff and typically not green, commonly found on trees and shrubs.

woody stems

300

This type of plant, such as a carrot or beet, requires two growing seasons to complete its life cycle

biennial

400

This layer of tissue produces new vascular tissue and grows between the xylem and phloem.

Cambium

400

These long, narrow xylem cells with tapered ends are found in all vascular plants and form strawlike tubes for water flow.

 tracheids?


400

While angiosperm leaves are often flat and broad, gymnosperm leaves usually have these two shapes to help conserve water

needlelike or scalelike

400

Some plants, like radishes and carrots, use their roots for this specific purpose to survive dry or cold seasons.

storing food

400

Flowering plants are traditionally grouped into monocots and dicots based on the number of these "seed leaves

cotyledons

500

Most photosynthesis occurs in these tightly-packed cells located below the upper epidermis of a leaf.

palisade mesophyll cells

500

Which of these xylem cells are more efficient at transporting water because their end walls have large openings or are completely open? 

A) Tracheids             B) Vessel elements 

C) Sieve-tube elements      D) Companion cells

B) Vessel elements

500

This gymnosperm group is unique because it contains only one remaining species, which is often used as an ornamental tree in cities.

ginkgo

500

These two specific plants are examples of organisms with underground stems that are often mistaken for roots

potato and the iris

500

If there are 300,000 species of seed plants and 9,000 of them are grasses, what percentage of seed plants are grasses?

3%? (9,000 / 300,000 = 0.03; 0.03 x 100 = 3%)

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