Brainscape's Knowledge GenomeTM

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


See full index

BIOL 225 > Week 10 - Flowers and Pollinators > Flashcards

Week 10 - Flowers and Pollinators Flashcards

1
Q

Explain the simple pistil

A

GARDEN PEA- single unfused carpel
RASPBERRY - multiple unfused carpels

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

Explain compound pistils

A

Fused carpels. Stigma and style may or may not be fused

ALL CITRUS

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

What are incomplete flowers?

A

Had missing parts

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

How can you tell if it’s multiple unfused carpels of one fused carpel by the fruit?

A

You have to cut an orange to see the diff parts but you can tell with a raspberry

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

What is nectar?

A

Sugar liquid in glands ate tje base of flower

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

What is the function of flowers?

A

Facilitate sexual reproduction

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

What id the calyx?

A

Fused sepal. MORE ovary protection and increases pollinator attraction

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

What are nectar guides?

A

Signal nectar glands?

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

What is a nectar spur?

A

Long, narrow tube that protects nectar from random animals that dont pollinate. You need a long mouth

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

What is inflorescence

A

Tight clustering of a bunch of tiny and seperate flowers

each tiny flower is cslled a disk floret

ex: sunflower

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

What are ray florets

A

They look like petals but around inflorescence

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

What is the huge plant family?

A

Composite/asteraceae family

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

What macronutrient is needed for the production of pollen?

A

Nitrogen

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

How many pollen sacks does an anther have

A

4

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

What is sporopollenin?

A

Durable polimer that makes the pollen grain indestructible

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

Describe double fertilization

A

Will mitate to have two sperm cells

  1. will fert egg to make a zygote
  2. will fuse with polar nuclei to make a 3n
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the twi important scars of a seed?

A
  1. from funiculus
  2. from microphyle
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Describe beetle pollinated plants

A

Large, WHITE, no nectar

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

What were the first pollinators?

A

beetles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is a pollination syndrome?

A

A pollinator specific trait

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Describe fly pollinated plants

A

Visit very often
Bee flies have long straws
Hover flies eat pollen

Many fly pollinated flowers smell like dead animals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Describe butterfly pollinated plants

A

Coiled tube fills up with hemolymph to uncoil.

Need low viscosity nectar (less than 10%)

LARGE INFLORESCENCE

23
Q

Describe bee pollinated plants

A

Most highly evolved pollinators

Flowers are typically blue purple or yellow

Bees eat nectar and pollen

24
Q

What are the benefits of being pollinated by bees?

A
  1. Endotherms. Bees will keep pollinating even if it’s cold
  2. Bees travel far between flowers. Pollen travels far
25
Q

Describe bird pollinated plants

A

Red flowers with long stamens

ex: hummingbird feeders

26
Q

Describe bat pollinated plants

A

Fragrent, dull in colour.

Thick tissues, sturdy branches

27
Q

Describe wind pollinated plants

A

small, scentless flowers.

Flowers must overproduce pollen since it’s up to chance

28
Q

Do orchids make a lot of very little pollen?

A

VERY LITTLE (1-20 per ovule)

29
Q

What is the first part of the eudicot seed to emerge out

A

The radical

30
Q

What does the terminal cell develop into?

A

The prodmbryo

31
Q

What does the basal cell develop into?

A

suspensor cells

32
Q

What are the embryonic leaves called?

A

Cotyledon

33
Q

What is needed to boot off germination?

A

Water

34
Q

How many cotyledons do eudicots have?

A

2

35
Q

What is the hypocotyl?

A

Region of embryonic plant that leads down to the radicle

36
Q

What is the cotyledon of monocots called?

A

Scutellum

37
Q

What protectd the radicle?

A

Coleorhiza

38
Q

What protects the stem?

A

Coleoptile

39
Q

Define sacrification

A

Raking forest floor so that small seeds can sprout

40
Q

Why are trees cut down in the winter in quebec? what is this strategy called?

A

Snow protects soil from the logging equipment

CPRS-S

41
Q

Define fruits

A

Mature ovaries thst protect seeds and help in their dispersal

42
Q

What are the three types of fruits

A

Simple
a) fleshy
b) dry

Aggregate

Multiple

43
Q

Define simple fleshy fruits

A

Originate from a single flower from a dingle carpel or compound pistel

BERRIES come from compound pistils
grapes, berries
modified berries: squashes, watermelon, citrus

DRUPE hard pit
cherry, avocados, peaches

POME
apple
*seperation of the sepal from the pedicel

44
Q

Describe dry dehiscent fruits

A

ex of dry: milkweed, gardenpea, star anise

Ovary wall tears open along pre determined line

45
Q

Describe indehiscent dry fruits

A

Ovary wall does not tear. Ovary with seed disperse as one unit

Achenes = dry fruit of dandelions (little white stuff)

46
Q

Describe aggregate fruits

A

Originate from a single flower with multiple unfused carpels

ex: raspberry, strawberry
tiny fruit of raspberry is a fruit

47
Q

Describe a multiple fruit

A

Derived from an inflorescence

Black mullberry is actually a bunch of tiny fruits all stuck together. Unlike a raspberry, each droop is from a seperate flower

48
Q

Give three exmapled of wind dispersed indehiscent fruit

A

maple seeds, birch seeds, ash seeds

49
Q

How di gymnosperms disperse?

A

By wind. Humidity flips cone scales and carries away the seeds that are underneath

50
Q

What is the elaiosome?

A

Nutrient rich pod of ant-mediated seeds

51
Q

What is cacheing?

A

Stashing fruit with large lipid seeds. When they lose them or they die, seed sprouts

52
Q

Explain root suckering. Name an example of a tree that does this

A

New stems are sprouted from underground root network

Aspen

53
Q

Explain apomixis

A

Diploid cell in ovule develops into embryo with no pollen.

Asexual reproduction

BIOL 225 (17 decks)

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