mid-term biology exam

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long piece on top of microscope

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1

long piece on top of microscope

body tube

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2

holds and spins objectives on microscope

revolving nose piece

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3

smallest objective on microscope

low power objective

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4

second largest objective on microscope

medium power objective

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5

largest objective on microscope

high power objective

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6

holds slide on microscope

stage clips

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7

controls the amount of light on microscope

diaphragm

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8

what you look through on microscope

occular/eyepiece

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9

what the slide is set on on the microscope

stage

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10

biggest focus knob

coarse focus

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11

smallest focus knob

fine focus

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12

bottom of microscope

base

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13

which objective is used to focus?

low power objective

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14

how do you calculate total magnifacation?

occular magnification x objective magnifacation

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15

what is a compound microscope?

a microscope using two lenses

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16

first step of the scientific method:

problem or question

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17

second step of the scientific method:

research

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18

third step of the scientific method:

hypothesis

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19

fourth step of the scientific method:

experiment

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20

fifth step of the scientific method:

analysis

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21

sixth step of the scientific method:

conclusion

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22

seventh step of the scientific method:

prediction

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23

the "things" that are changed in an experiment

variable

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24

the "things" that stay the same in an experiment

constant

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25

the one "thing" a scientist changes in an experiment

independent variable

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26

the "things" that change due to the independent variable

dependent variable

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27

what axis does the independent variable go on?

x

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28

what axis does the dependent variable go on?

y

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29

an educated guess made before an experiment

hypothesis

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30

used as a basis of accepting or rejecting the hypothesis

null hypothesis

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31

a group that gets a fake treatment without knowing it.

placebo group

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32

a group actively participating in an experiment. getting a treatment

experimental group

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33

gets no treatment or gets "normal treatment"

control group

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34

a statement that summarizes exactly what happened in an experiment

conclusion

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35

what does a chi square test?

the observed data with the expected data

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36

what is the rule to accept a null hypothesis?

if the x^2 is less than the critical value

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37

what is the rule to reject a null hypothesis?

if the x^2 is more than the critical value

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38

membrane surrounding nucleus

nuclear envelope

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39

control center of the cell. contains DNA

nucleus

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40

dense circular structure within nucleus

nucleolus

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41

when DNA is in long thin strands inside nucleus

chromatin

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42

gel like fluid that contains nucleus and other organelles

cytoplasm

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43

holds cells together, transports substances into/out of cell

cell membrane

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44

outermost layer of plant cells, surrounds cell membrane

cell wall

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45

clean up crew of cell

lysosomes

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46

how do you calculate total magnification on microscope

occular magnification x objective magnification

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47

what is a compound microscope?

a microscope using two lenses

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48

first step of scientific method

the problem or question

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49

second step of scientific method

research

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50

third step of scientific method

hypothesis

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51

fourth step of scientific method

experiment

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52

fifth step of scientific method

analysis

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53

sixth step of scientific method

conclusion

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54

seventh step of scientific method

prediction

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55

one thing a scientist changes in an experiment

variable

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56

the "things" that stay the same in an experiment

constant

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57

the one thing a scientist manipulates in an experiment

independent variable

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58

the "thing" that changes because of the independent variable

dependent variable

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59

which axis does the independent variable go on?

x

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60

which axis does the dependent variable go on?

y

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61

an educated guess made before an experiment. answers the question or problem

hypothesis

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62

used as a basis of accepting or rejecting the hypothesis

null hypothesis

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63

a group that gets a fake treatment without knowing it.

placebo group

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64

a group actively participating in the experiment. they get a treatment

experimental group

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65

gets no treatment or gets "normal treatment", not experimental treatment

control group

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66

a statement that summarizes exactly what happened in an experiment

conclusion

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67

what does a chi square test?

the observed data with the expected data

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68

a series of membranes that attach sugars to proteins and wrap them in a vesicle

golgi body

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69

storage structures for food, water, or waste products

vacuole

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70

storage structures that can move molecules in/out of cell

vesicles

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71

a series of tubes surrounding nucleus. has attached ribosomes

rough ER

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72

a series of tubes surrounding RER and nucleus. transports materials to and from nucleus

smooth ER

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73

found in plant cells only. contains chlorophyll

chloroplast

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74

contains chlorophyll. is a disk shaped membrane

thylakoid

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75

an entire stack of thylakoids

grana

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76

the watery space between thylakoids

stroma

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77

cell particles made of RNA that are scattered throughout cytoplasm

ribosome

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78

oval shaped with a double membrane. make energy by cellular respiration.

mitochondria

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79

folded inner membrane of mitochondria

cristae

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80

plays a key role in the oxidation of specific molecules

peroxisome

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81

chromatins coiling around proteins and forming an X

chromosome

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82

two bundles of microtubes near nucleus that pull apart chromosomes during mitosis/meiosis

centriole

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83

internal skeleton made of protein fibers. keeps organelles organized, helps cell move, helps organelles move

cytoskeleton

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84

only on animal cells. like a tail. helps with movement

flagella

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85

only on animal cells. like smaller flagella. helps cell move

cilia

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86

prokaryote or eukaryote?: 0.1-0.5 micrometers

prokaryote

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87

prokaryote or eukaryote?: no nucleus or organelles

prokaryote

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88

prokaryote or eukaryote?: evolved first

prokaryote

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89

prokaryote or eukaryote?: bacteria

prokaryote

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90

prokaryote or eukaryote?: 10-100 micrometers

eukaryote

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91

prokaryote or eukaryote?: membrane bound nucleus and organelles

eukaryote

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92

prokaryote or eukaryote?: evolved second

eukaryote

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93

prokaryote or eukaryote?: protozoans

eukaryote

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94

prokaryote or eukaryote?: fungi

eukaryote

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95

prokaryote or eukaryote?: animals

eukaryote

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96

prokaryote or eukaryote?: plants

eukaryote

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97
<p>identify this organelle</p>

identify this organelle

mitochondria

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98
<p>identify this organelle (not the nucleus)</p>

identify this organelle (not the nucleus)

rough endoplasmic reticulum

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99
<p>identify this organelle</p>

identify this organelle

smooth endoplasmic reticulum

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100
<p>identify this organelle (yellow dot)</p>

identify this organelle (yellow dot)

nucleolus

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