General Biology Lab Quiz: Labs 4 - 6
Name ________________
For the problems below, be sure to show your work with unit multipliers.
1.
How many grams of sucrose would you dissolve in water for a total volume of
1500 mL to make a 10% solution?
2.
How many grams of NaCl (molecular weight = 58.5 g mole-1) would you dissolve
in water to make a 0.6 M NaCl solution with 500 mL final volume?
3.
How many mL of concentrated (18 M) sulfuric acid (H2SO4) are required to prepare
500 mL of 2 M sulfuric acid?
4.
Substance A is tested in the lab as a pH of 4. Substance B is tested to be a pH of 2.
Which is more acidic…..A or B? Write your letter response in the blank below.
________
5.
Why is it important for a cell to remain at an optimum pH range?
6.
Match the following terms with their meanings. Write your answer in the blank at
the left. Use capital letters.
(a) _______
genotype
(b) _______
phenotype
(c) _______
dominant
(d) _______
recessive
(e) _______
homozygous
(f) _______
antigen
A.
B.
C.
D.
E.
F.
G.
H.
appearance of an organism
having both alleles the same
having different alleles
allele that can hide another
genes that move between chromosomes
protein that can trigger immunities
allele that can be hidden
shows the actual alleles in an
organism
(g) _______ transposons
7.
A blood sample is tested for the ABO system and Rh. There is agglutination with
all three antisera. What is the blood type of the patient?
_________
8.
Analyze the pedigree shown below. What inheritance pattern does it illustrate in
this family. Explain your answer.
9.
Match the following terms with their meanings. Write your answer in the blank at
the left. Use capital letters. (6 pts)
(a) ________ ocular
(b) ________ objectives
(c) ________ condenser
(d) ________ magnification
(e) ________ resolution
A.
B.
C.
D.
difference between lightness and darkness
extent of enlargement
lenses on the revolving nosepiece
focuses light from the light source on
to the specimen
E. lens closest to your eye when using the
microscope
F. area of the specimen that can be seen
G. sharpness or crispness of the image
(f) ________ contrast
10. The microscopes typically used in high school or college biology labs are
_____________ microscopes. (2 pts)
11. Scenario: You walk into biology lab and are handed a tall pea plant.
What can you tell your instructor about the plant in terms of its phenotype and
genotype? Explain. (5 pts)
12. For a given characteristic, does a dominant feature have a higher frequency in a
population than the recessive feature? Explain. (5 pts)
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