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Science 7 - McQuaid > Unit 9 - Test > Flashcards

Unit 9 - Test Flashcards

1
Q

What are the four general characteristics of all plants?

A
  1. They all go through the process of photosynthesis
  2. They all have cell walls
  3. They all have cuticles
  4. They all reproduce in a 2-stage cycle
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2
Q

All plants contain ______________ for photosynthesis, and have cell walls made of ___________.

A

chloroplasts, cellulose

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3
Q

It is believed that modern day plants most likely evolved from what?

A

green algae

Image of green algae in a river in China
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4
Q

Directions: True or false? If false, correct the statement.

Some scientists believe that plants evolved from green algae because they both contain similar chlorophyll and have cell walls.

A

True

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5
Q

Plant cells are surrounded by cell walls. List the three things a cell wall provides.

A
  1. Protection
  2. Structure
  3. Shape
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6
Q

What is a cuticle?

A

A waxy, transparent layer that surrounds the epidermis of a plant

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7
Q

Directions: Answer the statement with the best available option.

The main job of a cuticle is to…

A. Keep in moisture
B. Provide structure
C. Scare off predators
D. Serve as protection

A

A. Keep in moisture

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8
Q

Most plants have _______ and _______ to transport water and nutrients.

A

roots, stems

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9
Q

What are the two main divisions of plants?

A
  1. Nonvascular
  2. Vascular
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10
Q

Directions: After being provided the definition, list the plant classification.

  • Do not have true roots, stems, or leaves
  • Need to live in or near water (take in water through osmosis)
A

Non-Vascular Plants

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11
Q

List three examples of non-vascular plants.

A
  1. Moss
  2. Liverwort
  3. Hornwort
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12
Q

What is the definition of a vascular plant?

A

A plant that has vascular tissue and roots, stems, and leaves

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13
Q

Directions: Answer the statement with the best available option.

Xylem is a vascular tissue that moves…

A. Conifers
B. Food
C. Water
D. Spores

A

C. Water

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14
Q

What is a phloem?

A

A tissue in vascular plants that carries (moves) food and nutrients

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15
Q

Directions: True or false? If false, correct the statement.

The two main classifications of vascular plants are gymnosperms and angiosperms.

A

False. The two main classifications of vascular plants are seedless plants and seed plants.

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16
Q

How do seedless plants reproduce?

A

By spores

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17
Q

What are some examples of seedless vascular plants?

A

Ferns, horsetail, and club mosses

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18
Q
A

A: Gymnosperms
B: Angiosperms

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19
Q

This diagram is an example of what?

A

A seed

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20
Q

What are the five parts of all seeds?

A
  1. Plumule (future leaves)
  2. Hypocotyl (stem)
  3. Radicle (future root)
  4. Cotyledon (stored food)
  5. Seed coat (protective coating)
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21
Q

List two traits that only Gymnosperms possess.

A
  1. They produce seeds in cones
  2. They have needle-like leaves
Image showing the “needle-like” leaves on gymnosperms
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22
Q

What are some examples of gymnosperms?

A
  1. Conifers
  2. Ginkgoes
  3. Cycads
  4. Gnetophytes
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23
Q

Directions: After being provided the definition, name the plant classification.

  • Produce seeds in flowers
  • Seeds are eventually contained in fruits
A

Angiosperms

Clarifier:

Angiosperms are one of two members of the category seed plants, meaning they are vascular.

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24
Q

Monocots and dicots are the two broad groups of ___________ plants.

A

flowering

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25
Q

What are the differences between monocots and dicots?

Hint: Think about the veins, the flowers, the cotyledons, the vascular tissue, and the roots

A
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26
Q

List 5-10 examples of monocots.

A
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27
Q

List 5-10 examples of dicots.

A
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28
Q

Is this an image of a male or female cone?

A

female

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29
Q

What are the three main functions of roots?

A
  1. Supply plants with water and dissolve nutrients
  2. Hold plants securely in soil
  3. Store surplus food
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30
Q

Directions: Answer the statement with the best available option.

Stems help…

A. Support the plant body
B. Transport materials between roots and shoots
C. Store materials like water
D. All of the above

A

D. All of the above

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31
Q

There are _____ different types of stems.

A

two

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32
Q

What are the two types of plant stems?

A
  1. Herbaceous
  2. Woody
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33
Q

Directions: True or false? If false, correct the statement.

Woody stems are spongy and flexible, resembling one of a flower.

A

False. Woody stems are rigid and strong, like a tree.

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34
Q

What are herbaceous stems?

A

Stems that are spongy and flexible, and they are found on a flower.

35
Q

Based on the diagram below, what can you conclude about phloem and xylem?

A

Xylem tissue is usually more toward the inside of a plant compared to phloem.

36
Q

What is another name for vascular tissue?

A

vessels

37
Q

Directions: True or false? If false, correct the statement.

Leaves vary in shapes and sizes.

A

True

38
Q

What is the most important function of a leaf?

A

To make food through the process of photosynthesis

39
Q

Leaf cells are arranged in ________, allowing the leaf to work _____________.

A

layers, efficiently

40
Q

What layer of this leaf has been removed?

A

Upper epidermis

41
Q

The __________ layer in a plant leaf is responsible for photosynthesis, containing ______________ that capture light energy and convert it into chemical.

A

palisade, chloroplasts

42
Q

Directions: True or false? If false, correct the statement.

The palisade layer in a plant leaf is positioned just beneath the upper epidermis to maximize light absorption.

A

True

43
Q
A

Palisade layer

44
Q

The xylem and phloem are the two vascular tissue that run through the ______ layer.

A

spongy

45
Q

There are a lot of loosely packed cells with _____ spaces in the spongy layer. These spaces allow for the exchange of gases, such as ________ and carbon dioxide, which are vital for photosynthesis and respiration in the plant.

A

air, oxygen

46
Q
A

Spongy layer

47
Q

What do guard cells and stomata do?

A

They regulate gas exchange and water loss in plants. The guard cells surround and control the opening and closing of the stomata, which are small pores near the lower epidermis of leaves.

48
Q

Directions: True or false? If false, correct the statement.

The upper epidermis of leaves is usually not transparent.

A

False. The upper epidermis of leaves is usually transparent to allow light to penetrate and reach the paliside layer.

49
Q

Possibility of being a bonus question.

Being as specific as possible, where does photosynthesis take place?

A

In the grana of the chloroplasts, which are found in the palisade layer

50
Q

Flowers contain a plant’s _____________ organs, which are the stamen and the ________.

A

reproductive, pistil

51
Q

Why do most flowers contain sweet scents and have bright colorings?

A

To attract bees for pollination

52
Q

Directions: After being provided the definition, name the term.

The movement of pollen from the anther of one plant (male reproductive part) to the stigma of another (female reproductive part).

A

pollination

53
Q

Directions: Answer the statement with the best available option.

Part of a flower eventually turns into a…

A. pistil
B. stamen
C. sepal
D. fruit

A

D. fruit

54
Q

The stamen is the basic name for the male reproductive part of a flower. What two parts can the stamen be broken down into?

A
  1. The anther
  2. The filament
55
Q

The ________ is the first part of the stamen. It is where the ________ is actually produced.

A

anther, pollen

56
Q

What does the filament do in flowers?

A

It is the base of the stamen, and helps it stay upright

57
Q

In a plant, the female pistil is more complicated than its male counterpart. How many different parts does it have?

A

four

58
Q

Fill in the blank:

The ________ is the receptive surface of a flower, where pollen grains land.

A

stigma

59
Q

Possibility of being a bonus question.

The style is sometimes also called what?

A

The pollen tube

60
Q

What is the main job of the style?

A

To connect the stigma to the ovary of a flower

61
Q

List the two main actions that the ovary performs.

A
  1. The ovary contains one or more ovules, protecting and nourishing them.
  2. Once fertilization has taken place, the ovary develops into a fruit.
62
Q

Pertaining to female plant structures, where are the eggs located?

A

Inside the ovules

63
Q

After fertilization, the fertilized _____ within the ovule develops into an embryo. The ovule itself develops into a ______.

A

egg, seed

64
Q

Directions: After being provided the role, name the plant part.

  • Protects the flower during its bud stage
  • Supports the petals
  • Plays a role in attracting pollinators
A

sepal

65
Q

What is the higher part of a flower stem?

A

The receptacle

66
Q

Provide the definition of the term:

Photosynthesis

A

The process of changing light energy into chemical energy

67
Q

Fill in the blank:

Plants not only provide food for humans but also ________.

A

oxygen

68
Q

What is the formula for photosynthesis?

A

H20 + CO2 > C6H12O6 + O2

69
Q

After being provided the definition, name the term:

when cells use oxygen and glucose to make energy (ATP)

A

(cellular) respiration

70
Q

What are the two main things that respiration uses (needs)?

A
  1. Oxygen
  2. Glucose
71
Q

True or false? If false, correct the statement:

Respiration takes place in the lysosomes of the cells.

A

False. Respiration takes place in the mitochondria of the cells.

72
Q

What is the formula for cellular respiration?

A

C6H12O6 + O2 > CO2 + H2O + ATP

73
Q

Possibility of being a bonus question:

What are the folds in the inner mitochondria membrane?

A

Cristae

74
Q

Possibility of being a bonus question:

Approximately how many units of ATP are made each time respiration occurs?

A

38

75
Q

Gas exchange in a plant occurs where?

A

In the leaf

76
Q

In gas exchange, _____ enters and ____ exits the leaf. Gases enter through tiny pores in a leaf called _________. They are opened and closed by the _____________.

A

CO2, O2, stomata, guard cells

77
Q

Provide the definition of the term:

Transpiration

A

When plants release water vapor via the stomata

78
Q

Complete the statement with the best available option:

Transpiration occurs mostly during…

A. Daytime
B. Nighttime
C. Dusk
D. Storms

A

A. Daytime

Added Information/Explanation:

Transpiration occurs mostly during the daytime because of the presence of sunlight. Sunlight stimulates photosynthesis, which leads to the opening of stomata to allow for the intake of carbon dioxide. Additonally, during the daytime, temperatures are often higher, creating a greater gradient for water movement from the plant to the surrounding air.

79
Q

A plant’s version of “sweating” would be what?

A

Transpiration

80
Q

After being provided the definition, name the term:

Plants reacting to stimulation

A

Tropisms

81
Q

Give three different examples of tropisms, and what each of them mean.

A
  1. Phototropism - Plants responding to light
  2. Thigmotropism - Plants responding to touch
  3. Gravitropism - Plants growing according to gravitational pull
82
Q

True or false? If false, correct the statement:

Plants can detect the change in seasons.

A

True

83
Q

What are some responses to seasonal changes?

clarifier: think about in winter what happens to plants/trees

A
  • Loss of flowers
  • Loss of leafs
84
Q

How does a plant know when a season changes?

clarifier: when plants lose flowers, how do they know it’s winter?

A
  • Change in temperature
  • Change in water amount
  • Change in daytime hours (days get shorter during autumn/winter)
  • Change in chlorophyll amount

Science 7 - McQuaid (20 decks)

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