Grade 5 - Plant Reproduction

Question 1

Are plants may or may not produce seeds?

Answer 1

Yes

Question 2

Is it true that plants like mosses and ferns are seedless plants? They grow close to the ground in moist and shady environments found in forests and swamps?

Answer 2

True

Question 3

Is a type of plant that does not produce seeds. It does not have tubes or vessels to move materials from one part of the plant to another. It does not have true roots, stems, or leaves, but has structures that carry out the same functions.

Answer 3

nonvascular plant

Question 4

It is a slender, hairlike threads of cells that can be seen in a moss plant is called?

Answer 4

rhizoids or setae

Question 5

What are the two stages of life cycle of a moss plant?

Answer 5

sporophyte stage
gametophyte stage

Question 6

Is a stage in the life cycle of a plant wherein the plant produces spores?

Answer 6

sporophyte stage

Question 7

Is a stage in the life cycle of a plant wherein the plant produces sperm cells and egg cells?

Answer 7

gametophyte stage

Question 8

What is the role of the moss plant in our environment?

Answer 8

It covers bare rocks on which new plants can grow, reducing soil erosion. It also provides nesting materials for birds.

Question 9

Most ferns have underground stems called 1._______ the produce roots and leaves called 2. _______.

Answer 9

1. rhizomes
2. fiddleheads

Question 10

Why are they called fiddleheads?

Answer 10

They look like the ends of a violin or a fiddle.

Question 11

Seed plants are classified into two groups based on the structure of their seeds.

Answer 11

gymnosperm
angiosperm

Question 12

Is a group of plants that produce seeds with no covering. They produce their seeds in cones.

Answer 12

Gymnosperms

Question 13

The largest group of gymnosperm is?

Answer 13

conifer

Question 14

The word “conifer” means?

Answer 14

cone-bearing

Question 15

What are the two kinds of cone in a pine tree?

Answer 15

female cone
male cone

Question 16

This is an act when pollen is carried from the male cones to the female cones by wind, water, and even animals. This allows the sperm cells to fertilize the egg cells.

Answer 16

Pollination

Question 17

The most economically important group of gymnosperms are the ______.

Answer 17

conifers.

Question 18

Pine trees produce a sticky fluid called ________ which is used to make soap, turpentine, paint, and ink.

Answer 18

resin

Question 19

Is a group of plants that produce flowers and fruits.

Answer 19

angiosperms

Question 20

It means “covered seeds”

Answer 20

angiosperms

Question 21

The male part of the flower is the ______.

Answer 21

stamen

Question 22

The stamen contains the ______ and the _______.

Answer 22

anther
filament

Question 23

The anther contains the ______.

Answer 23

pollen grains

Question 24

The female part of the flower is the ________.

Answer 24

pistil

Question 25

The slender part of the pistil is the ______.

Answer 25

style.

Question 26

At the tip of the style is the ______.

Answer 26

stigma

Question 27

Is it true that the stigma produces a sticky material that traps the pollen grains?

Answer 27

True

Question 28

The base of the pistil is the _____.

Answer 28

ovary

Question 29

The ovary contains the _____.

Answer 29

ovules.

Question 30

Each ovule contains the ____.

Answer 30

ovum or the egg.

Question 31

____ grow from the base of the flower and enclose the flower before it opens.

Answer 31

Sepals

Question 32

____ grow above the sepals and protect the stamen and pistil.

Answer 32

Petals

Question 33

Flowers that have petals, sepals, stamens, and pistil are called _____.

Answer 33

complete flowers.

Question 34

Flowers that have missing parts are _____.

Answer 34

incomplete flowers.

Question 35

____ flowers lack either stamens of pistils.

Answer 35

Imperfect

Question 36

Is it true that pollen grains contain the male reproductive cells? Pollen is carried to the egg cells by the wind, insects, and other animals?

Answer 36

True

Question 37

The transfer of pollen grains from the anther of a stamen to the stigma of a pistil is called?

Answer 37

Pollination

Question 38

_____ occurs when one sperm combines with an ovum to form a zygote.

Answer 38

Fertilization

Question 39

What are the changes that take place in the flower after fertilization?

Answer 39

First, the zygote, or the fertilized ovum, develops into an embryo.

Second, the ovule develops into a seed.

Third, the ovary swells and grows into a fruit.

Question 40

The seed goes through a period of inactivity called ______.

Answer 40

dormancy.

Question 41

_______ is the growth of a young plant from a seed.

Answer 41

Germination

Question 42

What are cotyledons?

Answer 42

They are the young leaves inside the seed.

Question 43

Is true that plants need certain amount of nutrients which are taken up by plants through the roots.

Answer 43

True

Question 44

The 3 most important nutrients for plants.

Answer 44

nitrogen
phosphorus
potassium

Question 45

Is it true that the amount of water affects plant growth?

Answer 45

True

Question 46

True or False: Plants need sunlight to grow.

Answer 46

True

Question 47

Is temperature important to plant growth?

Answer 47

True

Question 48

Is it true that plants need the right type of habitat to grow?

Answer 48

True

Question 49

The transmission of traits from one generation to the next is called?

Answer 49

heredity

Question 50

______ are chemical messengers that control the growth and development of an organism.

Answer 50

Hormones

Question 51

Is a plant hormone that affects plant growth and causes flower stalks to grow longer.

Answer 51

Gibberellin

Question 52

Modern technology has made it possible to produce a large number of identical plants through a process called _____.

Answer 52

cloning

Question 53

The oldest plant clones on Earth are the ____________ that grow in the Mojave Desert in California.

Answer 53

creosote bushes