BotZoo Test 2

Question 1

plants

Answer 1

domain- eukarya
kingdom- plants
cell type- eukaryotic
cell #- multi
nutrition- autotrophs- photosynthesis

Question 2

photosynthesis equation

Answer 2

CO2+H2O–> C6H12O6+O2

Question 3

evolution of plants

Answer 3

• evolved from green algae

- aquatic to land= terrestrial environment

Question 4

advantages to living on land

Answer 4

• sunlight, CO2

- lack of competition and predators/ parasites

Question 5

disadvantages to living on land

Answer 5

• limited water
• no buoyancy, reproduction limitations
• might dry out

Question 6

adaptations of virtually all land plants

Answer 6

• root/root-like structure; anchor plant; absorb H20 and minerals
• cuticle covering-prevent water loss
• stomata: pores; allow for gas exchange CO2–>O2

Question 7

adaptations of some land plants

Answer 7

• vascular tissue: xylem and phloem transport

- lignin- stiffening molecule

Question 8

xylem

Answer 8

transports water and minerals

Question 9

phloem

Answer 9

transports sugars

Question 10

adaptations of some vascular plants

Answer 10

• pollen: male gametophyte (sperm)
• seed: protect the embryo
• flowers: sex
• fruits: responsible for seed dispersal

Question 11

non vascular plants

Answer 11

bryophytes

Question 12

characteristics of nonvascular plants

Answer 12

-gametophyte stage dominates
-no vascular tissue
-no lignin
-no true roots, stems, leaves
-small
-moist environments
EX: moss, liverwort, hornwort

Question 13

male and female on separate plants

Answer 13

dioecious

Question 14

male and female on the same plant

Answer 14

monoecios

Question 15

vascular plants

Answer 15

tracheophyte

Question 16

characteristics of vascular plants

Answer 16

• vascular tissue (xylem, phloem)
• lignin
• true roots, stems, and leaves
• taller
• sporophyte stage dominates
• less dependent/ independent of water

Question 17

seedless vascular plants

Answer 17

ex: club moss, fern, horsetail, tree fern

Question 18

seed vascular plants

Answer 18

• seeds
• pollen: male gametophyte
• 90% of plants are seedless

Question 19

Gymnosperms

Answer 19

Naked seeds

Ex: ginkgo, cycad, ephedra, a conifer

Question 20

female pine cones

Answer 20

ovulates

Question 21

male pine cones

Answer 21

staminates

Question 22

Angiosperms

Answer 22

• flowering plant

- flowers and fruit

Question 23

Two groups of angiosperms:

Answer 23

1. monocot- one cotyledon (seed leaf)

2. dicot- two cotyledons (seed leaves)

Question 24

shoot system

Answer 24

(stem, leaves, flower, fruit)

• support
• photosynthesis
• reproduction

Question 25

root system

Answer 25

• absorb h2o and minerals
• anchor plant
• storage of food (sugar, starches)

Question 26

meristematic cells

Answer 26

capable of dividing and differentiating

Question 27

primary growth

Answer 27

• meristematic cells

- apical meristem- tip of top, tip of bottom

Question 28

secondary growth

Answer 28

• meristematic cells

- lateral meristem

Question 29

lifespan

Answer 29

• annuals
• biannual
• perennial

Question 30

dermal tissue

Answer 30

(outer covering)

1. epidermis- cuticle
2. periderm- cork cells; bark
   - protection
   - prevent water loss

Question 31

ground tissue

Answer 31

• major component of plant organs

- photosynthesis, support, storage

Question 32

vascular tissue

Answer 32

Xylem: (transports water and minerals)
-one way flow
-vessel elements and tracheids
-dead at maturity
Phloem: (transports sugars)
-two way flow
-sieve tube elements and companion cells
-alive at maturity