unit 3: cytoskeleton & semiautonomous organelles

Question 1

Peroxisome 3 functions

Answer 1

1. detoxification
2. get rid of oxygen
3. oxidize large fatty acids

Question 2

peroxisome 1 structure

Answer 2

single membrane with crystalline core

Question 3

mitochondria 1 function

Answer 3

powerhouse -> ATP

Question 4

Mitochondria 3 structures

Answer 4

1. double membrane
2. the matrix
3. circular DNA

Question 5

why do we think mitochondria was once a bacteria? 2 reasons

Answer 5

1. divides on its own

2. circular DNA

Question 6

Chloroplast 1 function

Answer 6

solar powerhouse

Question 7

Chloroplast (solar energy) 3 Structure

Answer 7

1. triple membrane
2. thylakoid
3. circular DNA

Question 8

Cytoskeleton has 3 things, what are they?

Answer 8

microtubule
microfilament/ actin filaments
intermediate filaments

Question 9

Actin has 1 structure

Answer 9

small 2 stranded rope made from actin monomers

Question 10

actin has 3 properties, how does it act

Answer 10

1. flexible
2. dynamic (changing)
3. directional (+/-)

Question 11

actin has 1 motor

Answer 11

myosin (fibrous proteins that form filaments of muscle cell)

Question 12

actin has 3 functions

Answer 12

1. cell division
2. cell movement
3. muscle contraction

Question 13

what is actin cell division called

Answer 13

cytokinesis

Question 14

what is actin cell movement called

Answer 14

lamellipodia

Question 15

what filament is a jack of all trades/ does it all

Answer 15

actin

Question 16

actin is like a what

Answer 16

rope

Question 17

Intermediate Filaments is like a what

Answer 17

bungee cord

Question 18

Intermediate Filament has 3 structures

Answer 18

1. rolled up cable/ rope
2. made up of diverse proteins
3. crosslinked together

Question 19

Intermediate Filament has 3 properties, what are they like

Answer 19

1. elastic
2. flexible
3. permanent

Question 20

Intermediate Filament has what motor

Answer 20

NONE

Question 21

Intermediate Filament has 4 functions

Answer 21

1. resist pulling forces
2. give nucleus its shape
3. connect skin cells
4. hair, horns, claws

Question 22

microtubules is like a what

Answer 22

big hallow tube

Question 23

microtubule has 3 structures

Answer 23

1. hollow tube
2. made from tubulin subunits
3. made at centrosome (made of 2 centrioles )

Question 24

microtubule has 3 properties

Answer 24

1. rigid
2. dynamic (changing)
3. directional (add and take away)

Question 25

microtubule has 2 motors

Answer 25

1. kinesin (motors move away from centrosome) | 2. dynein (moves toward centrosome )

Question 26

microtubule has 3 functions

Answer 26

1. highway of the cell 2. chromosome separation (spindle apparatus) 3. cell motility (cilia, flagella)( part of cell moves but not the whole. ex. arms moving but you're body doesn't)

Question 27

stroma

Answer 27

in chloroplast | space between thylakoid and inner membrane

Question 28

thylakoid

Answer 28

in chloroplast

Question 29

granum

Answer 29

in chloroplast

Question 30

Calvin cycle is where

Answer 30

stroma (chloroplast)

Question 31

krepe cycle is where

Answer 31

matrix (mitochondria)