test 1

Question 1

Order of metric units

Answer 1

Meter 1

Centimeter 0.01

Millimeter 0.001

Micrometer 0.000001

Nanometer 0.000000001

Question 2

binocular dissecting microscope studies?

Answer 2

larger 3d object at low magnification

Question 3

Compound Microscope studies?

Answer 3

small thinly sliced objects under higher magnification than binoculars

Question 4

What are the 2 lenses in coumpound microscope?

Answer 4

1. ocular lense: near eyes
2. objective lense: near object

Question 5

How do you improve contrast in compound microscope?

Answer 5

stains, dyes (iodine)

Question 6

how do Transmission Electron Microscope work?

Answer 6

use beam of electrons magnified on photographic plate using electromagnets

Question 7

how are Transmission Electron Microscope objects contrasted?

Answer 7

thin sliced + treated with metal salts for contrast

Question 8

Scanning electron microscope

Answer 8

gives 3d dimensions with smaller objects

Question 9

What microscope part holds the eyepiece lenses that account for different eye ability?

Answer 9

Binocular Head

Question 10

What are the 2 lenses located on binocular head of dissecting mocroscope?

Answer 10

eyepiece lenses

Question 11

What is the large black knob located on the arm of the binocular dissecting microscope? what does it do?

Answer 11

Focusing knob; changes focus of both eyepieces together

Question 12

What is the knob built into the binocular head of the dissecting microscope? what does it do?

Answer 12

Magnification changing knob; zooms in simultaneously

Question 13

What lights up the object from about on the dissecting microscope?

Answer 13

illuminator

Question 14

What are the different magnifying power on compound microscopes?

Answer 14

4, 10, 40, 100

Question 15

What part of the compound microscope holds the nose piece and eyepiece and conducts light?

Answer 15

body tube

Question 16

What does the 4 lense do on the compound microscope?

Answer 16

scanning power objective; scans the whole slide

Question 17

What does the 10 lense on compound microscopes do?

Answer 17

low power objective; vews object in greater detail

Question 18

What does the 40 lense do on the compound microscope?

Question 19

What does the 100 lense do on the compound microscope?

Answer 19

oil immersion; used with immersion oil to see with greatest magnification

Question 20

what do you use to bring object into approx focus?

Answer 20

coarse adjustment knob

Question 21

What is used on compound microscope to bring into final focus?

Answer 21

fine adjustment knob

Question 22

what is below the stage and used to focus the light on a compound microscope?

Answer 22

condensor

Question 23

how are objects seen through the lense?

Answer 23

upside down

Question 24

If an object is in focus at a low power and also in focu at a high power it is?

Answer 24

parfocal (compound microscope)

Question 25

What is final item placed on wet mount before viewing with a microscope?

Answer 25

cover slip

Question 26

What does arrow stand for in chemical reactions?

Answer 26

change

Question 27

reactants in enzymatic reaction are called?

Answer 27

substrate

Question 28

where on an enzyme do substrates come together?

Answer 28

active site

Question 29

## Footnote If enzyme is boiled, what happens to enzyme?

Answer 29

becomes counter productive

Question 30

If enzyme is warmed, what happens to its activity?

Answer 30

speeds up

Question 31

a control for effect of warm temp would lack?

Answer 31

pH concentration

Question 32

if more enzyme used, what happens to smount of product per unit time?

Answer 32

increases

Question 33

what must be held constant when testing effect of enzyme concentration on enzyme activity?

Answer 33

pH temp

Question 34

What product of catalase reaction causes bubbling?

Answer 34

02

Question 35

What is varied when testing effect of pH on enzyme activity?

Answer 35

pH level

Question 36

## Footnote If pH is unfavorable, what happens to enzyme activity?

Answer 36

decreases

Question 37

During what stage does DNA replication occur?

Answer 37

interphase

Question 38

what phase do sister chromatids separate?

Answer 38

anaphase

Question 39

what process does cytoplasm of human cell separate?

Answer 39

cytokinesis

Question 40

in what phase do duplicated chromosomes first appear?

Answer 40

prophase

Question 41

where does meiosis occur?

Answer 41

in sex organs

Question 42

what structure in plants cells accomodate cytokinesis?

Answer 42

cell plate

Question 43

what are chromosomes that look alike and carry genes fr same traits?

Answer 43

homologues

Question 44

At what phase do homolgues separate?

Answer 44

anaphase

Question 45

What is a dihybrid cross?

Answer 45

when 2 dihybrid individuals (AaBb) reproduce the phenotypic ratio is 9:3:3:1

Question 46

Sex linked genes

Answer 46

genes located on sex chromosomes that afect traits other than sex (color blindness)

Question 47

How do you calculate volume?

Answer 47

length x width x depth