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Biology & Geology

Chapter 1 - Support and Movement in Living Organisms

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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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Chapter 7 - Geology, Earth Sciences and Ecology

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Quiz

Lesson 1 Quiz: Endocrine Glands, The Pituitary, Thyroid and Parathyroid Glands

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  • Questions count: 20
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1.
I have already booked the flight tickets. I ________ to London next Friday.
travel
traveled
will travel
am traveling
2.
The main chemical reducing agent inside the Midrex furnace and its industrial source are respectively:
Water gas (mixture of CO and H2) produced from natural gas (methane CH4)
Hydrogen gas produced from the electrolysis of water
Pure carbon monoxide (CO) produced from metallurgical coke
Carbon dioxide mixed with limestone
3.
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:
IgG
IgM
IgE
IgD
4.
The Ancon breed mutation in sheep with short, arched legs is considered a mutation:
A useful mechanism that the breeder kept in mind to prevent sheep from jumping fences and damaging crops
Numerical chromosome
Harmful innovation
Fatal to fetuses
5.
Complements are a group of plasma proteins that activate when an antibody binds to an antigen and work to:
Blood clotting
Decomposing the antigenic envelope and dissolving its contents to facilitate their ingestion by macrophages
Histamine secretion
Activate viruses
6.
The polyadenyne tail (Poly-A Tail) added to the end of the mRNA molecule in eukaryotes consists of about 200 adenine nucleotides and functionally functions to:
Protecting the mRNA molecule from degradation by enzymes in the cytoplasm
Binding to the polymerase enzyme
Formation of the nuclear envelope
Encoding polar amino acids
7.
In the secondary immune response upon exposure to the microbe for the second time, the response is characterized as:
It is very rapid and produces huge amounts of antibodies thanks to memory cells, and the individual does not show symptoms of the disease
Rely only on the first line of defense
Slow and takes days
Limited to non-specialized immunity
8.
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
Synthesis of enzymes
Centromere doubling
9.
The chemical compound secreted by mast cells and basal white blood cells that is responsible for the widening of blood vessels and symptoms of inflammation is:
Histamine
Albumin
Heparin
Interleukin
10.
Electric buses and monorails produce zero exhaust fumes, making them ________ forms of transport.
polluting
dangerous
noisy
eco-friendly
11.
The chemical formula of aluminum sulfate is correctly written as:
Al3(SO4)2
Al(SO4)3
AlSO4
Al2(SO4)3
12.
Modifying enzymes produced by bacteria work to:
Cracking viruses
Sugar analysis
Adding methyl groups (-CH3) to the nucleotides of recognition sites in bacterial DNA to protect it from their shortening enzymes.
Cell wall construction
13.
DNA Repair Enzymes, which number approximately 20 enzymes, depend for their work on:
Production of lipoproteins
Destruction of the infected cell
Heat irradiation of the cell
The presence of a corresponding healthy template strip complementary to the damaged strip to guide its sequence in repair
14.
The two main functional sites on the tRNA molecule are:
The amino acid binding site is at the 3′ end' (sequence CCA), and anticodon site
DNA polymerase site and binding site
Phosphate site and sugar site
Start location and stop location
15.
Which of the following compounds exhibits polar covalent bonding due to a significant difference in electronegativity between 0.4 and 1.7?
Sodium chloride (NaCl)
Chlorine gas (Cl2)
Methane (CH4)
Water (H2O)
16.
Plant hypersensitivity is an effective immunological method that includes:
Root loss
Stomata open at night
Secreting nectar to attract bees
The plant kills some of its infected tissues and cells locally to prevent the spread of the microbe to healthy tissues
17.
Connecting two complementary DNA strands by hydrogen bonds makes them:
Two parallel strands in opposite directions that are chemically complementary
Two exactly identical bars in the same direction
connected by peptide bonds
criss-crossing each lap
18.
Solid ionic compounds such as crystal NaCl do NOT conduct electricity in the solid state because:
Electrons are moving too rapidly
They decompose in the presence of air
Their ions are tightly locked in fixed positions within the rigid crystal lattice and cannot move freely
They contain no electrical charges
19.
The enzymes secreted by the plant to break down bacterial toxins and convert them into non-toxic compounds are:
Palace enzymes
RNA polymerase enzymes
pepsin enzymes
Detoxifying enzymes
20.
The Cowper glands and the prostate gland in the male reproductive system secrete an alkaline fluid that passes into the urethra to:
Secretion of testosterone
Sperm production
Balancing the acidity of the urethra to ensure the passage and safety of sperm
Semen storage
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