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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 1 Quiz: Plant Immunity (Structural and Biochemical Defense)

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1.
To distinguish between a white precipitate of barium sulfate (BaSO4) and a white precipitate of barium phosphate (Ba3(PO4)2), one should add:
Concentrated nitric acid in the dark
Ammonium hydroxide solution
Boiling distilled water
Dilute hydrochloric acid (Ba3(PO4)2 dissolves while BaSO4 remains insoluble)
2.
While the students ________ in the art workshop, the tour guide arrived.
were working
work
are working
worked
3.
The Cairo Monorail travels on an elevated single-beam track to avoid urban traffic ________.
comfort
gardens
stations
congestion
4.
The common ratio r of the geometric sequence (64, 32, 16, 8, ...) is:
r = 2
r = 4
r = 1/2
r = -1/2
5.
The 7th term of the geometric sequence (2, 6, 18, ...) is:
1458
162
486
729
6.
The sum to infinity of the geometric series 16 + 8 + 4 + 2 + ... equals:
30
24
64
32
7.
The derivative of y = sin(3x) with respect to x is:
3 cos(3x)
cos(3x)
3 sin(3x)
-3 cos(3x)
8.
If f(x) = |x - 3|, the derivative f'(3) at x = 3:
Equals 0
Equals -1
Does not exist because the left-hand derivative (-1) does not equal the right-hand derivative (+1)
Equals 1
9.
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:
76 cm Hg
4 cm Hg
72 cm Hg
80 cm Hg
10.
The Ideal Gas Law combining all empirical gas relationships is mathematically formulated as:
P * V = m * g * h
P * T = n * R * V
P * V = n * R * T
P / V = n * R * T
11.
The major histocompatibility complex (MHC) protein associates within the macrophage cell with:
Secreted antibodies
Perforin protein
Histamine molecules
Microbe antigen after being broken down by lysosomal enzymes to be displayed on the external surface
12.
Histone proteins responsible for shortening the length of the DNA molecule ten times and forming nucleosomes are characterized by being rich in the two basic amino acids:
Arginine and lysine (Arginine & Lysine)
Glutamic acid and aspartic acid
Glycine and alanine
Methionine and tryptophan
13.
Telomeres are found at the ends of eukaryotic chromosomes and perform an important function in:
Protecting chromosomes from corrosion and merging with each other and maintaining their structure
Construction of ribosomes
Centromere doubling
Synthesis of enzymes
14.
The Ancon breed mutation in sheep with short, arched legs is considered a mutation:
Fatal to fetuses
A useful mechanism that the breeder kept in mind to prevent sheep from jumping fences and damaging crops
Harmful innovation
Numerical chromosome
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