Plant Structure

Question 1

Vascular bundle

Answer 1

part of the transport system in vascular plants consisting of xylem, phloem and supporting tissues

Question 2

Meristems

Answer 2

A region of undifferentiated tissue found in root and shoot tips where primary growth occurs

Question 3

Hormone

Answer 3

Any chemical messenger that is transported to target cells for regulation

Question 4

Primary Growth

Answer 4

Growth in length, occurs at apical meristems

Question 5

What controls flowering?

Answer 5

Photoperiodism: night length

Question 6

Transpiration

Answer 6

the loss of water vapor form the leaves and stems of plants

Question 7

Auxins

Answer 7

Hormones that regulate plant primary growth and phototropism

Question 8

Phytochrome red in summer

Answer 8

low

Question 9

Classification System

Answer 9

Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

Question 10

Phytochrome red in winter

Answer 10

High

Question 11

Domains

Answer 11

Bacteria
Archaea
Eukaryotes

Question 12

Adhesion

Answer 12

Sticking to other things due to water’s polar nature

Question 13

Species

Answer 13

A group of organisms which can interbreed and produce fertile offspring

Question 14

Subspecies

Answer 14

Smaller taxonomic group, but may interbreed at species level

Question 15

Bryophyta

Answer 15

No true roots (only rhyzoids) and spores are released from sporangia for reproduction Ex. Moss

Question 16

Filicinophyta

Answer 16

Have fronds, spores from sporangia and stem curled as fiddleheads Ex. Ferns

Question 17

Coniferophyta

Answer 17

Woody stem and needles, female cone has seed Ex. Blue spruce and firs

Question 18

Angiospermophyta

Answer 18

Flowers Ex. Orchids and grass

Question 19

H2O Molecule

Answer 19

Partially negative oxygen, partially positive hydrogen

Question 20

Transpiration Stream

Answer 20

Due to adhesion and cohesion, a tree is able to move water up the trunk and stem of plants

Question 21

Factors that affect transpiration

Answer 21

Light - increase
High temp - increase
Wind - increase
Humidity - decrease

Question 22

C4 Plants

Answer 22

Take in CO2, uses enzymes to make 4 carbon compound and stores it in bundle sheath cells

Question 23

Adaptations of halophytic plants

Answer 23

(adapted to saline soils) reduced leaves, active transport of salt to leaves (succulent)

Question 24

Adaptations of xerophytes

Answer 24

reduced leaves, thick stems, rolled leaves, thick cuticle, stomata in pits

Question 25

CAM Plants

Answer 25

Open stomata at night, creates malic acid, takes CO2 out of malic acid and uses it in Calvin cycle

Question 26

Cohesion

Answer 26

Water sticking to itself due to hydrogen bonding

Question 27

Cell turgor

Answer 27

Pressure exerted by fluid in a cell that presses the cell membrane against the cell wall

Question 28

Abscisic acid

Answer 28

Hormone that results in stomata closing