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botany > Exam 1 slides 1 and 2 > Flashcards

Exam 1 slides 1 and 2 Flashcards

1
Q

plants face

A

the light

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2
Q

photoperiodism

A

length of the day and night

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3
Q

light quality

A

intensity,light spectrum

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4
Q

cytoplasmic streaming, cyclosis

A

the circulation of the chloroplasts being carried in by the cytoplasm

elodea (cytoplasmic movement)

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5
Q

sensitive plants

A

for example mimosa they leaflets close when touched

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6
Q

are plant cells eukaryotic or prokaryotic

A

eukaryotic

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7
Q

dictyosomes

A

Golgi bodies
-stacks of flattened disks
each stack=dictyosomes (AKA Golgi body animals)

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8
Q

Angiosperm

A

seeds in a vessel fruits or flowers etc

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9
Q

gymnosperm

A

Seed plant that produces naked seeds, conifers

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10
Q

cytomembrane system

A

membrane bound organelles of the endomembrane system

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11
Q

scanning electron microscope

A

surface

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12
Q

transmission electron microsope

A

inside

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13
Q

vascular membrane=

A

tonoplast

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14
Q

vascular membrane are

A

-derived from the er or Golgi apparatus
-controls the movement of substances into and out of vacuole which is an important organelle.

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15
Q

Plant cell biology (cytology)

A

the study of the
structure and function of plant cells

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16
Q

plant anatomy

A

the study of the internal structure of plants

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17
Q

Plant physiology

A

the study of the physiological
processes or functions of plants

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18
Q

Plant molecular biology

A

the study of plants at the
DNA, RNA, and protein level.

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19
Q

Plant biotechnology

A

the introduction of desirable
traits into plants through genetic modification

20
Q

Plant pathology

A

the study of plant diseases

21
Q

Plant morphology

A

the study of the external form of
plants as well as their life cycles

22
Q

Evolutionary plant biology

A

the study of how plants
have evolved or changed over time resulting in the plant
diversity that exists today.

23
Q

Economic botany

A

a study of the relationship between
plants and people, and how plants are used by people

24
Q

Plant ecology

A

a study of the interactions between
plants and other organisms, and interactions with the
environment

25
Q

Plant geography

A

a study of how and why plants
are distributed where they are

26
Q

Plant taxonomy

A

involves describing, naming, and
classifying plants

27
Q

Plant systematics

A

the science for developing
methods of grouping organisms

28
Q

Plant genetics

A

the study of heredity in plants

29
Q

The Large Central Vacuole develops

A

Develops from small vacuoles

30
Q

role of central vacoule

A
  1. Helps provide rigidity to living cells
  2. Helps maintain homeostasis in cell
  3. Contains cell sap
31
Q

Cell Sap of Vacuole

A

It is acidic
* Contains:
– Water
– Wastes
– Oils
– Sugars
– Proteins
-Plant pigments
-salts

32
Q

plant pigments

A

e.g. anthocyanins: water soluble, red, purple, blue
pigments (color is pH dependent)
– Japanese barberry
– Red cabbage
– Cherries
– Hydrangeas

33
Q

cell saps salts

A

Can form crystals
– e.g. Calcium oxalate crystals (high amount in spinach, rhubarb, Swiss chard, (can promote kidney stone formation)

  • Types of crystals
    – Druses
    – Raphides
34
Q

Roles of crystals

A

– Defense against grazing animals and other herbivores such as insects
– Regulation of calcium concentrations in cells and tissues

35
Q

Types of crystals

A

– Druses
– Raphides

36
Q

Not part of Endomembrane System

A

Mitochondria;
Chloroplasts & other Plastids

37
Q

Endosymbiosis Theory:

A

Mitochondria and chloroplasts developed from bacteria
that were taken into eukaryotic cells to live in symbiosis.

38
Q

why do Mitochondria and chloroplasts, have characteristics of
prokaryotic bacteria

A

-have their own circular DNA
* have their own ribosomes
* they are of similar size to bacteria
* they divide by fission

39
Q

Plastids

A

1.leucoplast
2.chromoplasts
3.chloroplasts
4. proplastids

40
Q

Leucoplasts

A

colorless
amyloplasts
elaioplasts

41
Q

Amyloplasts

A

have amylose (starch), contain 3 or
more starch grains

42
Q

chromoplasts

A

Contain red, orange, yellow carotenoid pigments

42
Q

Elaioplasts

A

store oils

43
Q

chloroplasts

A

green
-Contain chlorophyll and carotenoid pigments
– Sites of photosynthesis

44
Q

Proplastids

A

give rise to plastids

45
Q

Plant Cells are diff from animal cells cause

A

-Cell wall
* Plastids
* Large central vacuole

46
Q

Animal cells are diff from plant cells cause

A
  • No cell wall
  • No plastids
  • Small vacuoles

botany (25 decks)

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