Definitions

Question 1

Autotrophic plants

Answer 1

Make their food from inorganic nutrients

Question 2

Thallus

Answer 2

Body of a plant that does not have leaves stems and roots

Question 3

Pneumatocysts

Answer 3

Floats in seaweed

Question 4

Microscopic photosynthetic algae

Answer 4

Free-living or attached

Question 5

Monoecious

Answer 5

Both sexes

Question 6

Substratum

Answer 6

Soil or rock under seaweed

Question 7

CO2 sequestration

Answer 7

Acting as a carbon sink and removing CO2

Question 8

Oogonia

Answer 8

Female reproductive structures in brown algae

Question 9

Antheridium

Answer 9

Male reproductive structures in brown algae

Question 10

Spermatagnia

Answer 10

Male sexual gametes in polysiphonia

Question 11

Carpogonial

Answer 11

Female sex gametes in polysiphonia

Question 12

Dioecious

Answer 12

Separate sexes

Question 13

Gametophyte

Answer 13

Forms gametes for Sexual reproduction in seaweed

Question 14

Sporophyte

Answer 14

Forms spores for asexual reproduction in seaweed

Question 15

Conceptacles

Answer 15

Where gametes production takes place in the fucus serratus (brown seaweed)

Question 16

Fucoid

Answer 16

Type of brown seaweed

Question 17

Antheridia

Answer 17

Male reproductive structures on fucus seaweed. They undergo meiosis from male gametes.

Question 18

Antherozooids

Answer 18

Male gametes in fucus seaweed (brown seaweed).

Question 19

Protists

Answer 19

Eukaryote

Question 20

Heterotroph

Answer 20

Require outside food sources

Question 21

Mixotrophs

Answer 21

Make own food but also eat others

Question 22

Osmotrophs

Answer 22

Use diffusion and osmosis to get food

Question 23

Photographs

Answer 23

Photosynthesise to get food

Question 24

Polyphyletic

Answer 24

Grouped but don’t share a common ancestor

Question 25

Lateral gene transfer (LGT)

Answer 25

Transmission of genes between unicellular or multicellular organisms other than transferring DNA from parent to offspring.

Question 26

Thermopyles

Answer 26

High temp (greater than 60 degrees Celsius

Question 27

Acidophilus

Answer 27

pH 3 or below

Question 28

Xerophyles

Answer 28

Dry areas

Question 29

Halophyles

Answer 29

High salt content

Question 30

Organotrophs

Answer 30

Organism that obtains hydrogen or electrons from organic substrates

Question 31

Diazotrophic

Answer 31

Fix nitrogen to useful compounds

Question 32

Gram negative bacteria

Answer 32

Only visualised by certain stain due to it containing peptidoglycan

Question 33

Filamentious

Answer 33

Cells elongate but can’t divide and have multiple chromosomal copies. These filaments that we formed then go in to form colonies.

Question 34

Heterocysts

Answer 34

Thick walled cells that contain nitrogen fixing bacteris

Question 35

Nitrogenase

Answer 35

Enzyme that fixes nitrogen

Question 36

Cyanobacteria

Answer 36

Uses photosynthesis to get its own energy

Question 37

Coccoliths

Answer 37

CaCO3 plates on a Haptophyt