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Biology & Geology

Chapter 2 - Hormonal Coordination in Living Organisms

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Chapter 3 - Reproduction in Living Organisms

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Chapter 4 - Immunity in Living Organisms

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Chapter 5 - Molecular Biology - DNA Structure and Function

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Chapter 6 - Molecular Biology - RNA, Protein Synthesis and Genetic Engineering

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Quiz

Lesson 2 Quiz: Rock Cycle, Minerals, Crystallography and Weathering

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1.
The n-th term of an arithmetic sequence with first term a and common difference d is given by:
T_n = a + (n - 1) * d
T_n = 1/2 n (2a + d)
T_n = a + n * d
T_n = a * rn − 1
2.
Real gases behave most closely to an ideal gas under conditions of:
High pressure and near liquefaction point
Zero gravitational acceleration
Extremely high pressure and low temperature
Very low pressure and high temperature (where intermolecular attraction forces and molecular volumes become negligible)
3.
The number of polar bodies resulting from the maturation and fertilization of 3 primary oocytes in the ovary of a human female is equal to:
9 Polar bodies (assuming division of the first polar body)
6 Polar bodies
12 A polar body
3 Polar bodies
4.
In a titration experiment, 20.0 mL of 0.15 M H2SO4 is completely neutralized by 30.0 mL of NaOH solution. The molar concentration of the NaOH solution is:
0.10 M
0.20 M
0.05 M
0.30 M
5.
Potters use high-temperature ovens called ________ to bake and harden clay vessels.
kilns
blenders
looms
fridges
6.
If both the absolute temperature and the absolute pressure of a confined ideal gas are doubled, the volume of the gas:
Remains constant and unchanged
Quadruples
Decreases to one-fourth
Doubles to twice its original volume
7.
A mercury manometer connected to a gas tank shows the mercury level in the free arm is 4 cm higher than the gas arm (Pa = 76 cm Hg). The gas pressure is:
72 cm Hg
80 cm Hg
76 cm Hg
4 cm Hg
8.
While the students ________ in the art workshop, the tour guide arrived.
were working
worked
are working
work
9.
Pure water reaches its maximum density (1.000 g/cm3 or 1000 kg/m3) at a temperature of:
0.0 °C
4.0 °C
25.0 °C
-4.0 °C
10.
A U-tube contains water (ρ = 1000 kg/m3) and oil (ρ = 800 kg/m3). If the oil column height above the interface is 10 cm, the balancing water column height is:
8 cm
6.4 cm
12.5 cm
10 cm
11.
The antibody that is transferred across the placenta from the blood of the pregnant mother to the blood of the fetus to give it natural, passive, acquired immunity is:
IgM
IgD
IgE
IgG
12.
The standard start codon in an mRNA molecule recognized by the first tRNA molecule carrying methionine is:
UAG
UGA
AUG
UAA
13.
The pressure of a gas trapped inside an incandescent light bulb is 0.8 atm at room temperature (27 °C). When the bulb operates, the filament heats the gas to 327 °C at constant volume. The operational pressure is:
2.4 atm
0.96 atm
1.2 atm
1.6 atm
14.
The volume expansion coefficient at constant pressure (alpha_v) and the pressure expansion coefficient at constant volume (beta_p) for all ideal gases have the universal constant value of:
8.314 J/(mol.K)
1.013 x 105 Pa
273.15 K
1 / 273.15 K−1 (approx. 0.00366 K−1)
15.
The covalent chemical bond that connects the heavy and light peptide chains in an antibody molecule is:
Disulfide Bonds - S-S
Additional peptide bonds
Weak hydrogen bonds
Ionic bonds
16.
The fetal membrane that directly surrounds the fetus and secretes a fluid that protects it from shock and dehydration and facilitates its movement is:
Amnion
Plasma membrane
Vitelline membrane
Amniotic membrane (Chorion)
17.
Watch out! The ladder is shaking violently. You ________ fall!
will
are going to
were
have
18.
The enzyme that catalyzes the peptidyl transferase reaction and the formation of the peptide bond between amino acids during translation is:
Release factor protein
Helix enzyme
Part of the rRNA molecule that makes up the subunit of the ribosomal subunit
DNA polymerase enzyme
19.
A synthetic chromosome mutation that occurs when a piece of chromosome separates, wraps around itself at an angle of 180 degrees, and then rejoins in the same position is called:
Deletion mutation
Inversion mutation
Transmission mutation
Repetition mutation
20.
The hormone responsible for maintaining the balance of minerals in the blood by stimulating the reabsorption of sodium ions and eliminating excess potassium through the kidneys is:
Thyroxine hormone
Aldosterone
Cortisol hormone
Insulin hormone
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