Algae

Question 1

What are algae classified by

Answer 1

colour
shape
type of chlorophyll/accessory pigments 
form of food storage 
substance and cell wall composition

Question 2

what is the holdfast for

Answer 2

to anchor agae to substrate

Question 3

what are the blades for

Answer 3

large surface area= good for ps

Question 4

what is the bladder used for

Answer 4

buoyancy

Question 5

what is in the bladder

Answer 5

gasses

Question 6

what does the visible spectrum have

Answer 6

different wavelengths of light energy

Question 7

surface water absorbs high medium or low energy light?

Answer 7

low energy

Question 8

what are the colours of low energy light

Answer 8

red orange yellow

Question 9

where does green algae live

Answer 9

shallow depths

Question 10

Where does the blue end of the spectrum reach?

Answer 10

deep

Question 11

why does the blue spectrum reach deeper than the rest?

Answer 11

higher energy wavelenghts

Question 12

red algae ives where

Answer 12

deepest depths

Question 13

whatis the re algae accessory pigment

Answer 13

phycobilin

Question 14

where does brown algae live

Answer 14

middle depths

Question 15

brown algae accessory pigment

Answer 15

fucoxanthin

Question 16

Chlorophyta

Answer 16

green algae

Question 17

describe phylum chlorophyta

Answer 17

mostly single cell, but also colonial and multi cellular 
contains chlorophyll a and b 
green 
cellulose cell wall 
lives at the surface

Question 18

which chlorophyll does chlorophyta have

Answer 18

a and b

Question 19

phylum that lives at the surface

Answer 19

chlorophyta

Question 20

Rhodophyta

Answer 20

red algae

Question 21

descrbe phylum rhodophytA

Answer 21

most large and multicelular, but few unicellular 
chlorophyll a and c 
accessory pigment phicobilina
red in colour
stored sugar as floridean starch 
cell walls with agar and or carageenan 
deepest living algae

Question 22

deepest living algae

Answer 22

rhodophyta

Question 23

stores sugar as floridean starch

Answer 23

rhodyphyta

Question 24

what form does rhodophyta store their sugar

Answer 24

floridean starch

Question 25

what accessory pigment does rhodophyta have

Answer 25

phicobilina

Question 26

what phylum has chlorophyll a and d

Answer 26

rhodophyta

Question 27

what chlorophyll does rhodophyta have

Answer 27

a and d

Question 28

phaeophyta

Answer 28

``` all multicellular chlorophyll a and c accessory pigment fucoranthin brown to olive green in colour cell wall of cellulose and algin fod storage as laminarin starch or oil ```

Question 29

has chlorophyll a and c

Answer 29

phaeophyta

Question 30

has accessory pigment fucoranthin

Answer 30

phaeophyta

Question 31

what accessory pigment does phaeophyta have

Answer 31

fucoranthin

Question 32

what chlorophyll does phaeophyta have

Answer 32

a and c

Question 33

gamete fertalizaton

Answer 33

diploid zygote | zygote matures to sporophyte

Question 34

what so sporophytes produce

Answer 34

spores

Question 35

what do gametophytes produce

Answer 35

gametes

Question 36

gametophytes are diploids or haploids

Answer 36

haploids

Question 37

Ecological role of algae

Answer 37

primary producers oxygen producer habitat for many species

Question 38

human uses for algae

Answer 38

food source medicine indstrial/scientific

Question 39

why are algae restricted to a wet environment

Answer 39

- not stable | - no vascular system

Question 40

which phylum (chlorophyts, rhodophyts, phaeophyta) can live in moist soil?

Answer 40

chlorophyta

Question 41

which phylum stores sugar as laminarin starch or oil

Answer 41

Phaeophyta

Question 42

has a cell wall of cellulose and algin

Answer 42

phaeophyta

Question 43

has cell walls of agar and/or carageenan

Answer 43

rhodophyta

Question 44

stores sugar as floridean starch

Answer 44

rhodophyta

Question 45

describe gamete fertilization

Answer 45

diploid zygote -> zygote matures to sporophyte

Question 46

ecological role of algae

Answer 46

primary producer, oxygen producer, habitat

Question 47

human uses for algae

Answer 47

food, medicine, industrial/scientific

Question 48

How are algae well adapted to life in water

Answer 48

no vascular system flagellated cells food storage alternation of generations

Question 49

how do the names "red, brown, and green" reflect the most important differences between these groups?

Answer 49

Th colour of the algae determines what part of the water column they can live in.

Question 50

How do the light gathering pigments effect the depth at which various algae can live

Answer 50

The light gathering pigments which the algae contain determines which part of the light spectrum they can use for photosynthesis . Some parts of the visible light spectrum penetrate deeper than some, therefore the algae which photosynthesize with these wavelengths can survive deeper.

Question 51

describe the role of a holdfast

Answer 51

anchors algae to substrate

Question 52

stipe

Answer 52

transports nutrients and h2o

Question 53

bladder

Answer 53

for buoyancy, full of gasses

Question 54

what is alternation of generations

Answer 54

a pattern of reproduction involving regular alternation between the two distinct forms (asexual and sexual)