microscope & cell membrane

Question 1

active transport

Answer 1

molecules moving into cell

Question 2

which form of transport requires ATP energy

Answer 2

active transport

Question 3

passive transport

Answer 3

molecules moving out of cell

Question 4

cell membranes are composed of

Answer 4

protein channels, lipids, and protein receptors

Question 5

purpose of the membrane

Answer 5

protect inside of cell

Question 6

chemicals are able to bind to cell receptors because..

Answer 6

of their specific shape

Question 7

osmosis

Answer 7

solution with a high concentration diffuses into another solution with a low concentration to balance the molecules

Question 8

hypotonic

Answer 8

low concentration, water moves into cell

Question 9

hypertonic

Answer 9

higher concentration, water moving out of cell

Question 10

when too much water moves into a cell

Answer 10

it can burst

Question 11

when not enough water is in the cell

Answer 11

it will shrink

Question 12

selectively permeable

Answer 12

cell membrane selects what is allowed into cell

Question 13

diffusion

Answer 13

high concentration of liquid moving to a lower concentration because of diluted water added to cell

Question 14

atp

Answer 14

energy molecules produced in mitochondria

Question 15

allowed into cell membrane

Answer 15

h20, glucose, 02 and c02

Question 16

not allowed into cell membrane

Answer 16

lipids, starch, and proteins

Question 17

how can a microscope slide viewed on high power be damaged

Answer 17

increasing the coarse adjustment knob

Question 18

what will happen if you increase magnification and the subject is not centered

Answer 18

you will not be able to see it completely, it will be off view

Question 19

increasing the magnification of the microscope will do what to the subject view

Answer 19

it will limit your field of view across the entire subject, but you will be able to see it in more detail

Question 20

decreasing the magnification of the microscope will do what to the subject view

Answer 20

will let you see the entire subject, but you won’t be able to see as much close-up detail

Question 21

how to find total magnification

Answer 21

multiply eyepiece by the objective lens

10x eyepiece, 40x objective lens = 400x total magnification

Question 22

how to perform wet mount slide

Answer 22

place subject on slide, drop water on slide, then add cover slip

Question 23

how to add stain/salt water

Answer 23

place a paper towel on one side of the coverslip and use a dropper to place stain/salt water on the other side of coverslip

Question 24

what does the coarse focus knob do

Answer 24

moves stage up and down quickly

Question 25

what does fine focus knob do

Answer 25

used to make small focus adjustment especially when using high power objective lens

Question 26

purpose of stage

Answer 26

holds the slide and allows light to pass through and make the subject more clear

Question 27

purpose of diaphragm

Answer 27

controls the amount of light going into the subject view

Question 28

after switching from the high power to low poer objective lens of a compounds light microscope,

Answer 28

the area of the low power field will appear larger and brighter