Lab Exam

Question 1

5m=

___km
___cm
___mm
___µm
___nm

Answer 1

5m=

.005 km
500 cm
5,000 mm
5,000,000 µm
5,000,000,000 nm

Question 2

The following symbols relate to what unit?

g

m

L or l

*C

Answer 2

Answers:

Gram

Meter

Liter

Degrees Celsius

Question 3

The following units apply to what measurement?

Gram

Meter

Liter

Celsius

Answer 3

Answers:

Mass

Length

Volume

Temperature

Question 4

The following factor applies to what symbol and it’s associating prefix?

1,000

1/100

1/1,000

1/1,000,000

1/1,000,000,000

Answer 4

Answers:

Kilo- K

Centi- c

Milli- m

Micro- µ

Nano- n

Question 5

What is the surface area of side B?

Answer 5

What is the surface area of side B?

5mm
x 5mm
25mm²

Question 6

What is the total surface area?

Answer 6

What is the total surface area?

5mm
x 5mm
25mm²

5mm
x 10mm
50mm²

50mm²
x 4
200mm²

25mm²
x 2
50mm²

200mm²
+ 50mm²
250mm²

You would find the surface area for every side and add them together. Since there are two sides that equal 25mm² and 4 sides that equal 50mm², this leads to our third and fourth equations above.

These added together equal our answer.

Question 7

What is the volume of the block?

Answer 7

What is the volume of the block?

5mm x 5mm x 10mm=

250mm³

Question 8

Convert:

50*F to *C

50*C to *F

Answer 8

(50-32) x 5/9=10*C

50 x 9/5 + 32= 122*F

*C = (*F-32) x 5/9

*F = *C x 9/5 + 32

Question 9

What are the following parts and their function(s)?

Answer 9

A. Body Tube
B. Arm
C. Coarse Focus
D. Fine Focus
E. Base
F. Light Source
G. Mechanical Stage
H. Nosepiece

Question 10

When using a light microscope, the you look through the _______ lens. This lens is _____ magnification.

Answer 10

Ocular, 10x

Question 11

The lenses closest to the slide are called ___________. Typically, these three lenses are _____, _____, and _____ magnification. This combined with the ocular lens will make the magnification ______, ______, and ______.

Answer 11

Objective
4x, 10x, and 40x
40x, 100x, and 400x

Question 12

When using a light microscope, the ______ __________ is a lever underneath the stage regulating light intensity.

Answer 12

Iris Diaphragm

Question 13

A Biuret test will turn _______ if positive and tests for ________.

Answer 13

Purple, Proteins

Question 14

A Benedict’s test will test for _______ and turn _________ for a hard positive.

Answer 14

Monosaccharides, Red

Question 15

A Sudan IV tests for __________ and will ____________________ when tested positive.

Answer 15

lipids, seperate

Question 16

An Iodine test will test positive for __________. When positive it will _________________.

Answer 16

Starch, turn dark blue

Question 17

A(n) __________ solution is a lower solvent concentration and a higher solute concentration.

Answer 17

Hypertonic

Question 18

A(n) __________ solution is a higher solvent concentration and a lower solute concentration.

Answer 18

Hypotonic

Question 19

A(n) __________ solution is a equal solvent and solute concentrations.

Answer 19

Isotonic

Question 20

_________ is the diffusion of water accross a _____________ membrane.

Answer 20

Osmosis, Semi-Permiable

Question 21

If two alleles are the same (eg. AA or aa) it is said to be ______________. If two alleles are differing (eg. Aa), it is said to be ____________.

Answer 21

Heterozygous, Homozygous

Question 22

Make a probibilty chart for a Monohybrid cross between a Red flower (with one red allele and one white) and one White flower.

What are the genotypic and phenotypic ratios?

Answer 22

Genotypic:
Rr=50%
rr=50%

Phenotypic:
Red=50%
White=50%

Question 23

Make a probibilty chart for a Dihybrid cross between a Red flower (with one red allele and one white) and one White flower.

Assume the Red Flower has veragated petals (VV) and the White flower has smooth petals.

What are the genotypic and phenotypic ratios?

Answer 23

Genotypic:
RVrv=50%
rVrv=50%

Phenotypic: