Unit 3

Question 1

nucleus

Answer 1

control center, largest structure, DNA and RNA

Question 2

nucleolus

Answer 2

makes ribosomes

Question 3

Cytoplasm

Answer 3

holds all organelles, large carbs, fats, and protein molecules

Question 4

cytosol

Answer 4

semi-fluid, 75%-95% of water

Question 5

cell membrane

Answer 5

what comes in and out of cell, phospholipidbilary

Question 6

selectively permeable membrane

Answer 6

cell membrane function, flexible boundary, mediates entrance/exit of material into and out of cell.

Question 7

facts affect selective permeability(4)

Answer 7

size of molecules
solubility in lipids
charge on ions
presence of carrier molecules

Question 8

Intracellular fluid

Answer 8

fluid INSIDE the cell

Question 9

Extracellular fluid

Answer 9

fluid found in microscopic spaces between cells
(ex: plasma/spinal fluid)

Question 10

interstitials

Answer 10

between tissues

Question 11

intercellular

Answer 11

between cells

Question 12

passive transport processes

Answer 12

diffusion
facilitated diffusion
osmosis
dialysis
filtration

Question 13

diffusion

Answer 13

movement of molecules from high to low concentration (no energy required)

Question 14

facilitated diffusion

Answer 14

high to low concentration through protein channels of cell membrane

Question 15

dialysis

Answer 15

diffusion of waste, excessive particles and water

Question 16

Filtration

Answer 16

removing particles from solution by allowing liquid and substances that are smaller.

Question 17

osmosis

Answer 17

diffusion of water

Question 18

Active transport processes

Answer 18

endocytosis
exocytosis
active transport

Question 19

Endocytosis

Answer 19

molecules are too big to enter cell, vesicle is formed or “cell eating”

Question 20

Exocytosis

Answer 20

remaining particles from cell

Question 21

Active Transport

Answer 21

ions move against concentration

Question 22

isotonic solution

Answer 22

equal

Question 23

hypotonic solution

Answer 23

low/more particles in cell

Question 24

hypertonic solution

Answer 24

high/ more particles in water

Question 25

Mitosis

Answer 25

2 daughter cells with identical genetic make-up of parent cell

Question 26

Meiosis

Answer 26

sperm/egg cells are produced

Question 27

organelles

Answer 27

specialized structures with certain roles.

Question 28

ribosomes

Answer 28

makes proteins

Question 29

endoplasmic reticulum(smooth)

Answer 29

makes lipids

Question 30

endoplasmic reticulum(rough)

Answer 30

produces/stores proteins

Question 31

Golgi complex

Answer 31

packaging, processing, shipping

Question 32

Lysosome

Answer 32

waste disposal system, breaking down and digesting warn out cells

Question 33

Mitochondria

Answer 33

powerhouse

Question 34

Centrosome

Answer 34

helps cell division, duplicates cells before dividing (split during mitosis)

Question 35

centrioles

Answer 35

Organizing microtubules (split during mitosis)

Question 36

Microtubules

Answer 36

creates cytoskeleton (giving cell its structure)

Question 37

cilia

Answer 37

moving things across the surface of cell