Chapter 4

Question 1

Robert Hook

Answer 1

created 1st microscope and coined the term “cell”

Question 2

Cell theory states 2 thing…

Answer 2

1. all living things are composed of cells

2. all cells come from other cells

Question 3

Bacteria and Archaea are eukaryotic or prokaryotic?

Answer 3

prokaryotic

Question 4

Plasma membrane

Answer 4

identifies cell as unit separate from other cells

Question 5

Cytoplasm is also known as..

Answer 5

intracellular compartment

Question 6

4 major functions of membranes

Answer 6

1. compartmentalization
2. selective passage of material (semi-permeable)
3. sites of chemical reaction
4. cell communication and interaction w/ outside world

Question 7

Plant cells don’t have ___ that animals have

Answer 7

lysosomes

Question 8

What organelles do plant cells have that animals do not?

Answer 8

rigid cell wall, chloroplasts, and central vacuole

Question 9

Nucleus

Answer 9

contain most of cells DNA and activities by directing protein synthesis

Question 10

Endomembrane is..

Answer 10

many of the membranes within a eukaryotic cell

Question 11

2 types of ER

Answer 11

smooth and rough

Question 12

Smooth ER

Answer 12

lacks attached ribosomes, produce enzyme for protein synthesis

Question 13

Rough ER

Answer 13

have ribosomes attached to side of membrane

Question 14

Golgi apparatus

Answer 14

finishes sorts and ships cell products

Question 15

Lysosome

Answer 15

membranous sac containing digestive enzymes

Question 16

Mitochandria

Answer 16

organelles that carry out cellular respiration

Question 17

Chloroplasts

Answer 17

photsynthesizing organelles

Question 18

Photosynthesis

Answer 18

conversion of light NRG from the sun to the chef NRG of sugar molecules

Question 19

Cytoskeleton composed of 3 kinds of fibre

Answer 19

Microfilaments, intermediate filaments, microtubules

Question 20

Extracellular matrix

Answer 20

(ECM) helps hold cells together in tissues and protect/support the membrane