Ch. 26: Cyanobacteria

Question 1

phycobilins

Answer 1

phycoerythrin
-red
phycocyanin
-dominant
-blue
pigments

Question 2

thylakoid

Answer 2

found in cytoplasm
not associated
site of light-dependent reactions of photosynthesis

Question 3

heterocyst

Answer 3

specialized cell that fixes nitrogen

Question 4

nitrogen fixation

Answer 4

take N2 (oxidized) out of the air and convert it to ammonia (NH3) or NH4+ (reduced)
takes more energy to reduce nitrogen than carbon

Question 5

gas vesicles

Answer 5

formed by bacteria to float in water columns

Question 6

glycogen

Answer 6

BOOK

Question 7

peptidoglycan

Answer 7

composition of the cell wall
-in prokaryotes
most complicated wall material we know of

Question 8

slime sheath

Answer 8

around the cell wall
contains colloids
-pectin is the colloid

Question 9

fission

Answer 9

divide by binary fission rather than mitosis
asexual reproduction
division into two cells

Question 10

heterocysts

Answer 10

nitrogen-fixing cells