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Flashcards in Exam 3 Deck (26):
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What are tracheophytes?

Club mosses and ferns, vascular seedless plants

1

What are club mosses?

Small evergreen plants with roots, sporangia at top in cone like strobilus

2

What is microphyll evolution?

The evolution of "leave" like structures, they are outgrowths of stem tissue with one singular vascular strand.

3

How does the sporangium of a fern work?

The sporangium holds all the spores. The water backbone starts to evaporate and the sporangium starts to open and then acts like a catapult and flings the spore away from its self.

4

What are gymnosperms?

Seeded vascular plants also knows as conifers

5

What is monoecious?

Reproductive parts are borne in male and female strobilus

6

What are microsporangia?

Contain microsporocytes that undergo meiosis to form microspores of male gametophytes

7

What is megasporangia?

Female reproductive part...megasporocyte undergoes meiosis to create megaspores

8

What are the three components of the female reproductive structure of an angiosperm?

Called a Pistil, it is made up of the stigma, style and ovary

9

Three types of tissues in a plant?

Dermal tissue- (epidermal)
Ground tissue
Vascular tissue- (xylem and phloem)

10

Epidermal cell types

Pavement cells- under cell wall
Guard cells- around the stomata
Trichomes- provide protection and shade

11

Ground tissue types

Parenchyma- primary cell wall
Collenchyma- lots of pectin, primary and secondary cell wall
Sclerenchyma- pectin, lignin, hemicellulose (primary and secondary)

12

What does the xylem do?

Transport water

13

What does the phloem do?

Transport sugars

14

What does it mean for a plant to be DECIDUOUS?

They drop their leaves seasonally

15

What is the function of a stem?

Support, photosynthesis and storage

16

What is a rhizome?

Horizontal stems that grow below the ground with adventitious roots

17

What is a tuber?

Accumulation of food at the tips of underground stolons

18

What are the types of roots?

Tap, fibrous, buttress, and pneumatophores

19

What is the endodermis?

Innermost cells of the cortex

20

What is the pericycle?

The outermost cells of vascular bundle

21

What is the casparian strip?

Runs thru the endodermis

22

Where does secondary growth occur?

The vascular cambium and the cork cambium

23

Secondary xylem is made up of what two kinds of wood?

Sapwood (younger) and heartwood (older)

24

What are lenticels and what is their function?

Openings on the periderm that allow gas exchange

25

What plants DO NOT have secondary growth?

Monocots