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Bio 2 H 1st Semester Exam > Bio 2 H 1st Semester Exam > Flashcards

Bio 2 H 1st Semester Exam Flashcards

Study for 1st Semester Exam

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Biology 101 flashcards
1
Q

What is one advantage of transpirational water loss in plants?

A

Assists in the transport of minerals throughout the plant

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2
Q

Legumes are valuable crops because they have protein-rich seeds and because

A

They improve the nitrogen content of the soil

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3
Q

In woody stems and roots, the epidermis is replaced by

A

Cork cells

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4
Q

One of the inorganic nutrients recycled by plants is

A

Phosphorus

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5
Q

Mycorrhizal fungi

A

Infect plant roots without harming the roots

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6
Q

About half of the worlds species of plants and animals live in

A

Tropical rain forests

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7
Q

Some bacteria can take what atmospheric gas and convert it into a form plants can use

A

Nitrogen

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8
Q

What step has been taken to reduce the introduction of plant pests and diseases into the US from other locations

A

Government inspectors screen incoming plant materials

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9
Q

Giant ragweed in pollinated by

A

Wind

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10
Q

Grasses that contain grains are called

A

Cereals

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11
Q

Why are redwoods resistant to fire

A

Their bark is very thick

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12
Q

Grains can be fermented into alcohol and mixed with gasoline to make

A

Gasohol

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13
Q

Growing plants and animals for human use is called

A

Agriculture

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14
Q

A crop that would be an example of a tuber would be

A

Yam

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15
Q

What type of plant would this alternation-of-generation diagram represent

A

Vascular plant

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16
Q

Plant tissue that carries organic nutrients in any direction depending on a plants needs is

A

Phloem

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17
Q

A plant that grows on another plant is called a what

A

Epiphyte

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18
Q

What is a rhizome

A

An underground stem found in most ferns

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19
Q

What is one role of stomata on plants

A

Allow exchange of oxygen and carbon dioxide

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20
Q

The occurence of the first land plants coincided with what event

A

The formation of the ozone layer

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21
Q

How many chloroplasts does a hornwort cell have

A

1

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22
Q

Mosses are called pioneer plants because they

A

Are often the first species to inhabit a barren area

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23
Q

The plant tissue that transports water from the roots to the leaves is the

A

Xylem

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24
Q

The mobile sexual reproductive parts of all seedless plants are

A

Spores

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25
Q

Most monocots

A

Have parallel venation

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26
Q

One of the differences between angiosperms and gymnosperms is that

A

Angiosperms have a more efficient vascular system

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27
Q

Primary growth refers to

A

An increase in the length of a plant

28
Q

These meristems allow grass leaves to quickly regrow after being grazed or mowed

A

Intercalary

29
Q

A cactus is called a ___ because of its fleshy water-storing stems

A

Succulent

30
Q

New xylem with cells that are wide and this walled are a type of wood called

A

Springwood

31
Q

What is the major limitation to plant photosynthesis

A

Insufficient water due to transpiration

32
Q

Leaf veins are part of the ___ system

A

Vascular

33
Q

Why do annual rings often not occur in tropical trees

A

The have a uniform year-round environment

34
Q

Which of the following are found in both roots and stems

A

Vascular tissues

35
Q

Most roots form symbiotic relationships with fungi to form a ___________

A

Mycorrihiza

36
Q

The innermost boundary of the cortex is the __________

A

Endodermis

37
Q

Which section should include your hypothesis and a brief statement about why you expected certain types of results

A

Discussion

38
Q

A complex series of reactions in which one product is consumed in the next reaction is called a ___________ _______

A

Biochemical pathway

39
Q

The final product of the Calvin cycle (that is used to make organic compounds) is

A

G3P

40
Q

Plants that utilize the CAM pathway tend to be found in _____ climates

A

Hot, dry

41
Q

In glycosis, organic compounds are converted into three-carbon molecules of _____

A

Pyruvic acid

42
Q

In eukaryotic cells, the Krebs cycle and the electron transport chain takes place in the ____

A

Mitochondria

43
Q

What process in plants is important for reducing competition

A

Dispersal

44
Q

Which of the following is NOT used by pine seeds for dispersal

A

Forcible discharge

45
Q

The embryonic root is known as the

A

Radicle

46
Q

In the pine seed, the embryo is surround by what

A

The tissue of the female gametophyte

47
Q

Double fertilization occurs in

A

Angiosperms

48
Q

A thick layer of cells that surrounds megasporangium in conifers

A

Integument

49
Q

This structure on ferns is where haploid spores are formed and released

A

Sorus

50
Q

Joining two or more plant parts to form a single plant is known as what

A

Grafting

51
Q

One structure that is found in ferns but not in mosses or conifers is

A

A sorus

52
Q

What is the dominant generation in the fern life cycle

A

Sporophyte

53
Q

In a flowering plant, the female gametophyte is referred to as

A

An embryo sac

54
Q

In a flowering plant, one sperm fertilizes the polar nuclei to form the

A

Endosperm

55
Q

Enzyme that allows protons to flow through down a concentration gradient, ATP is made as a result

A

ATP synthase

56
Q

What molecule does oxygen become a part of at the end of the electron transport

A

Water

57
Q

Lactic acid fermentation occurs in the ______ cells of humans during very strenuous exercise

A

Muscle

58
Q

Beginning of Glycolysis, two phospates are add to the ______ at the expense of ATP

A

6-Carbon glucose

59
Q

In what part of the chloroplast does the Calvin cycle take place

A

Stoma

60
Q

Neither chlorophyll a nor chlorophyll b absorb much _____ light

A

Green

61
Q

What is the energy lost by the electron transport chain used for

A

To move protons into the thylakoid

62
Q

Why should the discussion section be written after the results section

A

So you have a good idea of what the experiment has demonstrated

63
Q

Which tense is generally recommended for writing the materials and methods section

A

Past

64
Q

It is acceptable to set out to do which of the following in your experiment and writing

A

Test something

65
Q

Which part of a lab report should be written first

A

Materials and Methods

66
Q

Direct quotes are rarely used in laboratory reports and should be avoided. T/F

A

True

Bio 2 H 1st Semester Exam (3 decks)

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