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Flashcards in Class 1 Deck (95)
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1

A plant is -- branch off the tree of life

one

2

plants have typical characters at the cell level: cellulose cell walls, -- and chloroplasts

vacuole

3

-- species of plants

250k

4

T/F: chloroplasts evolved way before plants

true

5

Goethe's -- scientist sells soul to devil to get fame

Italian Journey

6

Classic "unified plant" idea: Goethe's 'Ur-plant' all plants are variations on a single unified theme, and that each carries within it the -- for huge variation

potential

7

Modern "unified plant" idea: emphasis in much -- on 'model' plants, with genomes determined, functionally elucidated, modified

physiology

8

Arabidopsis (thale cress) has a small genome, sequenced in 2000, -- week life cycle, easy to propagate

6

9

used in classic genetic and molecular biology experiments (McClintock); important fast-growing crop

Zea mays (corn, maize)

10

model especially for flower developmental genetics

Antirrhinum (snapdragon)

11

other model plant species include brassica (cabbage, canola), --, tobacco, and rice

tomato

12

cell wall is rigid, made of cellulose, with --

proteins

13

primary cell walls are --, characteristic of young, growing cells

thick

14

model plants should be able to -- fast (easily propagated)

grow

15

plants have typical characters at the whole-plant level:

roots, leaves

16

secondary cell walls have deposited of -- so are up to several um thick and stronger

lignin

17

model plants should have -- fecundity

high

18

model plants should be -- to grow

cheap

19

model plants should be easy to -- for genetic experiments

manipulate

20

If a model plant's genome was --, it would be easier to discover, clone, and transfer genes

sequenced

21

Other important aspects of model plants are that it should be -- of most plants in terms of genetics and have variable phenotypes

representative

22

Does arabidopsis have phenotypic plasticity?

no

23

typical body = stem, -- and root

leaf

24

softer more flexible cell wall

primary wall

25

-- also bridges the cells

endoplasmic reticulum

26

vacuole is the -- compartment

storage

27

vacuole can press up against cell membrane/wall

hydrostatic pressure

28

outside the protoplasts, the cell walls also form a continuous space, a potential pathway

apoplast

29

all of the membranes within the cell are --

interconnected

30

vacuole contains water, organic and inorganic ions, ---, enzymes, and metabolites

sugars