Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PBIO 1030 > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

Conservation group that protects medicinal plants in our local forests

A

Goldenseal Sanctuary (nonprofit) protects more than 600 kinds of medicinal plants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Ecosystem

A

a community of interacting services and their physical enviorment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

ecosystem services

A

any positive benefit that an ecosystem may provide to people

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

biodiversity

A

the variety of life found in a particular ecosystem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

four categories of ecosystem services

A

provisioning, regulating, cultural, and supporting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

greenhouse gas

A

gasses that trap heat in the atmosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

carbon sequestration

A

the process in which atmospheric carbo dioxide is taken up by trees, grasses, and other plants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

perfect flower

A

flower housing both sexes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

imperfect flower

A

flower with only one functional sex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

monoecious

A

separate male and female flowers on one plant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

dioecious

A

individual plants that bear only male or female flowers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

4 ways that fruits and seeds are dispersed

A

wind, animals, water, and ejection by plant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

mechanical defences

A

cacti spines, fine leaf hairs, waxes and saps, venus fly traps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

chemical defenses

A

cyanogenic glycosides (cyanide containing molecules), neurotoxic chemicals found in hemlock, ricin, spices, and medicines.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

how can herbivores overcome plant defense mechanisms

A

evolution. monarch butterflies are an example, as they can safely consume toxic cardiac glycosides produced by milkweed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

why do plants produce tannins

A

help protect the plant species, they also play a role in human health, mainly in medicine (witch hazel)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

how is the doctrine of signatures is used to remember plants for medicinal purposes

A

swiss herbalist paracelsus believed that the medicinal use of plants could easily be ascertained by recognized distinct signatures visible on the plant that corresponded to human anatomy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

goldenseal

A

dye, insect repellant, and an antiseptic/antibiotic wash for treating wounds, mouth sores, and eye inflammations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

echinacea

A

purple cornflower was used medicinally by the plains indians as an antidote for snake bites as well as for bites and stings of other animals

20
Q

herbal remedies lead to the development of modern medicine

A

75 to 90 percent of the population still relies on herbal medicine as their only health care

21
Q

effect of fox glove glycosides on the heart

A

reduces/eliminates all symptoms of dropsy (inflammation in extremities/heart). slows the heart rate while increasing the amount of blood pumped per rate.

22
Q

use of willow bark

A

has long been used for effective treatment in reducing fever and relieving pain. first found in the 18th century as beneficial for fevers and colds, then refined synthetically.

23
Q

jesuits bark

A

native to the eastern slopes of the andes mountains, has fever reducing capabilities. jesuits used it to treat peoples suffering from malaria.

24
Q

why is arteminsinin an important alternative to chloroquine

A

shows fewer side affects than quinine or synthetics and is effective against chloroquine resistant strains of p. falciparum

25
Q

medicinal uses of aloe vera

A

applying the sap for minor burns and cuts, treatments for various skin ailments, rashes, sunburns, scalds, and minor wounds

26
Q

plants used in anticancer therapies

A

vinca alkaloids: found to be effective against leukemia cells
taxol: obtained from the bark of a pacific yew, effective against ovarian cancer
campothecins: designed to treat various forms of cancer - suspended because of high toxicity and severe side effects

27
Q

advantages of using synthetic compunds

A

readily available to consumers, avoids over consumption of natural resources

28
Q

medicinal uses for st johns wort

A

helps treat depression

29
Q

how does play and physical activity in natural spaces contribute to children’s health

A

develop fine motor skills, keep positive attitudes, attention restoration theory

30
Q

horticulture therapy

A

employs plants and gardening activities in therapeutic and rehabilitation activities

31
Q

what are the effects of horticulture therapy

A

improved sleep, decreased agitation, improved cognition in dementia patients, improved chronic pain, cardiac, and post stroke rehabilitation

32
Q

purpose of green infrastructure

A

improves stormwater managements and includes tree paintings, green roofs, bioswlaes, rain gardens, permeable pavement, and rain barrels

33
Q

how do green roofs affect the lifespan of a rooftop

A

while costly, green roofs improve the lifespan of a rooftop

34
Q

how do green roofs affect tempratures

A

temperature reduction in buildings achieved by the vegetation on the top of the roof shading the surface and removing heat through evapotranspiration

35
Q

strychnine

A

alkaloid obtained commercially from the seeds of the asian indian tree strychnos nux-vomica and is a stimulant of the central nervous system.

36
Q

curare

A

arrow poison employed by south american tribes in hunting hame. injecting it produces immediate muscle relaxation by blocking nerve impulses. has been utilized as a muscle relaxant in surgery.

37
Q

most poisonous plant in north america

A

poison hemlock

38
Q

ricin

A

found in the castor bean, it is extremely poisonous. concern over its use as a bio terrorist weapon

39
Q

philodendron and dumbcane

A

houseplants that are the most common call to poison control, causes painful burning, swelling on lips and tongue, and throat

40
Q

hevea latex

A

species from which almost all natural rubber is obtained

41
Q

effect of ww2 on rubber production

A

cut off the supply of rubber to the us, began experimentation with other sources of rubber

42
Q

guayule

A

alternative plant source of rubber

43
Q

why do plants produce resins

A

herbivory defense, can be used for humans in the medicinal feild, incense, embalming, and laquer

44
Q

who brought chicle to the us

A

antonio lopex de santa

45
Q

how are plant fibers classified

A

according to their uses (ie fibers that are used to weave cloth are known as textile fibers, cordage fibers are used to make rope, ext)

46
Q

diffrent types of fibers

A

surface: covering of leaves
bast: used for linnen
hard: obtained from veins of leaves

47
Q

advantages of hemp over cotton

A

staminate plants produce the longest fibers, up to two meters. primarily used to make industrialized fabrics.

PBIO 1030 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions