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Bio 108 LAB > midterm 2 > Flashcards

midterm 2 Flashcards

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Biology 101 flashcards
1
Q

Condenser

A

focuses light that passes through stage

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2
Q

Field of View

A

thickness of element in focus

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3
Q

Depth of field

A

distance between closest and farthest objects that are in focus

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4
Q

Inter pupillary distance

A

distance between eyepieces

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5
Q

Letter e under micro….

A

upside down and flipped (180 degrees)

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6
Q

HPD = (LPD x LPM) / HPM

A

HP - high
LP low
D - diameter of FOV
M = magnification

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7
Q

The LARGER the magnification the….

A

SMALLER the field of view

inverse relationship

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8
Q

Resolution

A

smallest distance between two points that can be seen as two separate entities

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9
Q

d = 0.61 wvlength / N.A

A 
d = resolution
N.A = n x sin(a) numerical aperture
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10
Q

Osmosis

A

high to low concentration with SELECTIVELY PERMEABLE membrane

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11
Q

Solvent

A

dissolving agent

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12
Q

Solute

A

dissolved substance

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13
Q

Tonicity

A

non penetrating solutes !! relative concentration of solutions inside and outside cell, determines direction of water flow

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14
Q

Hypertonic

A

solution with HIGHER SOLUTE concentration

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15
Q

Hypotonic

A

LOWER SOLUTE concentration

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16
Q

What was inside beaker ?

A

water and iodine solutions

17
Q

What was in dialysis bag ?

A

glucose and starch

18
Q

Benedicts test

A

tests for glucose

19
Q

Iodine test

A

test for starch

20
Q

In the exp the solution was…

A

HYPOtonic

21
Q

What could pass through the membrane ?

A

glucose, iodine, water

22
Q

Starch could not pass through bc the membrane is…

A

non penetrating

23
Q

Blue color…

A

NO glucose

24
Q

Orange/ red brown….

A

glucose present

25
Q

What can you infer ab the size of glucose and iodine particles?

A

theyre smaller

26
Q

The potatoes got lighter in what solution….

A

FRUCTOSE, water being pulled out

27
Q

in osmosis flow goes from….

A

HYPO to HYPER

28
Q

In the 0.6 solution it was…

A

HYPERTONIC, potato lost weight

29
Q

How do we know glucose left bag ?

A

positive benedicts test on beaker solution

30
Q

Independent variable for enzyme lab….

A

pH and temperature

31
Q

Dependent in enzyme lab….

A

time for starch to disappear

32
Q

Product of enzyme lab….

A

maltose and other sugars

33
Q

When wells turned amber….

A

high enzyme activity

34
Q

Control variable of enzyme lab….

A

room temp, pH 7

35
Q

ratio for mitosis (chromatids per chromosome)

A 
G1 - 1
S -2
G2 - 2
pro - 2
meta - 2
ana - 1
telo - 1
36
Q

Mitotic Index

A

P + M + A + T / total # of cells

37
Q

Amylase breaks down…

A

starch

38
Q

Photosynthesis

A

carbon dioxide and water combine using sunlight…. produce glucose and oxygen

Bio 108 LAB (3 decks)

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