Science 11A

Question 1

Name two ways to classify a plant:

Answer 1

1. Do they produce seeds?

2. Does the plant have vascular tissue?

Question 2

Most plants use seeds to reproduce? These do not. How do these reproduce: Mosses and FernsTulipsPine trees

Answer 2

Mosses and Ferns: sporesTulips: flowers and fruits produce their seedsPine trees: pine cones

Question 3

_______ ______ conducts water and other materials in some plants.

Answer 3

vascular tissue

Question 4

If a plant has a phloem or a xylem, is it classified a vascular plant, or non-vascular plant?

Answer 4

vascular plant

Question 5

True or False: if a plant does NOT have vascular tissue (nonvascular), it does NOT produce seeds?

Answer 5

True. Nonvascular plants reproduce by producing gammates and spores. Vascular plants (with phloem or xylem reproduce with seeds)

Question 6

Plants can be divided into three major categories (give examples): (Study Figure 11-1)

1. Non-vascular
2. Vascular with seeds
3. Vascular without seeds

Answer 6

1. nonvascular (mosses, liverwarts, hornwarts) (short and in water areas)
2. vascular with seeds - redwood, conifer trees
3. vascular without seeds (ferns, club mosses, horsetails)

Question 7

If nonvascular plants dont have phloem or xylem, how do they transport material?

Answer 7

Diffusion (usually shorter b/c diffusion can’t push materials up very high like a vascular plant with “tubes”. Nonvascular plants are usually near water

Question 8

True mosses belong to a group called b______

Answer 8

bryophytes

Question 9

Moss has two sections, _____ (lower part is always present) and a stalk (top part).

Answer 9

rhizoids (rootlike) is ALWAYS present

Question 10

Mosses have two stages in their life cycle where a different form of reproduction happens. This is called Alternation of _________.

Answer 10

Alternation of generations.

Question 11

What are the two type of “Alternation of Generations” in a moss?

Answer 11

gametophyte generation (produces stalk and capsule)

sporophyte generation (spores create leafy gametophyte)

Question 12

Which type of plants grow taller and in drier places, vascular or nonvascular? Why?

Answer 12

vascular. They move water easy inside themselves

Question 13

The leaf of a fern is called a ________?

Answer 13

frond

Question 14

Fronds are attached to an underground stem called a _______. These are true stems. They contain vascular tissue

Answer 14

Rhizome (unlike rhizoids in mosses which are not true stems/roots because they do NOT have vascular tissue)

Question 15

The young fronds are in tight coils that emerge upwards from the rhizome (true stem) in a fern are called ________?

Answer 15

fiddleheads

Question 16

In ferns, the thing that produces the spores are called? (SEE PICTURE)

Answer 16

sori (in alternation of generations, dominate fern stage is the sporophyte)

Question 17

Seed plants drop seeds, not spores. Spores are single-celled, but seeds are multi cells and contain a young plant inside the seed called an _______

Answer 17

embryo (have more energy and barriers than spores)

Question 18

The two main type of seed plants are _______ and ________?

Answer 18

Angiosperms - largest group of plants in the worldGymnosperms -

Question 19

How are Angiosperms different than gymnosperms?

Answer 19

1. Angiosperm seeds produce fruit which cover their seed! Thus, angiosperm means covered seed. Gymnosperm means (naked), or uncovered seeds.
2. All Angiosperms produce flowers, gymnosperms do not. Fruits spawn from flowers

Question 20

True or False: All Angiosperms produce flowers, and all flowering plants are Angiosperms?

Answer 20

True

Question 21

Angiosperm or gymnosperm?Apple tree?Christmas tree?Giant redwood tree?Orange tree?

Answer 21

AGGA

Question 22

Pine trees, giant redwood trees are this type of Gymnosperm? it is the most common gymnosperm and the most important to humans? (wood, paper, houses)

Answer 22

conifer

Question 23

Plants can be divided into how many seasons they grow?
Annual - ?
Biennial - ?
Perennial - ?

Answer 23

Annual - one season (sprout, grow, flower and make seeds)

Biennial - two seasons (sprout, grow) then (flower)

Perennial - grow all year

Question 24

This is someone who works with growing vegetables, fruits, flowers or plants (Hanna’s Dad)

Answer 24

Horticulturist