What does calorimetry measure?
Anonymous Quiz
3%
Volume of a gas
83%
Heat exchanged in a chemical reaction or physical process
8%
Density of a liquid
6%
Electrical conductivity of a solution
Which part of DNA is translated into protein?
Anonymous Quiz
19%
Introns and exons both
11%
Introns only
27%
Exons (after splicing)
43%
Mitochondrial DNA
π1
What is the region around a magnet where magnetic force acts called?
Anonymous Quiz
4%
Electric field
28%
Gravitational field
67%
Magnetic field
0%
Radiation field
What type of symbiosis is the relationship between sharks and pilot fish?
Anonymous Quiz
11%
Parasitism
39%
Mutualism
30%
Commensalism
21%
Predation
Media is too big
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What does Faraday's first law of electrolysis state?
Anonymous Quiz
7%
Current is proportional to voltage
76%
The mass deposited is proportional to the electric charge passed
10%
Resistance is inversely proportional to temperature
6%
EMF is proportional to the magnetic field
Which plant structure absorbs water and minerals from the soil?
Anonymous Quiz
4%
Leaves
4%
Stem
92%
Roots (root hairs)
0%
Flowers
β€1
What is surface tension?
Anonymous Quiz
6%
Internal pressure of a gas
86%
The force that tends to minimise the surface area of a liquid
3%
Viscosity of a fluid
6%
Friction between fluid layers
Which bond forms between amino acids in a protein?
Anonymous Quiz
11%
Ionic bond
78%
Covalent (peptide) bond
8%
Hydrogen bond
3%
Van der Waals bond
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Creating the content you enjoy every day takes constant work, research, and dedication.
Our team of collaborators puts in countless hours, all without any compensation, to keep these channels active, useful, and inspiring.
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Which organ produces red blood cells in adults?
Anonymous Quiz
16%
Liver
8%
Thymus
68%
Red bone marrow
8%
Spleen
β€2
What are planetary rings composed of?
Anonymous Quiz
23%
An asteroid belt around Saturn
62%
Discs of ice and dust orbiting a planet
8%
A nebula around a star
8%
A system of close moons
What is DNA transcription?
Anonymous Quiz
24%
DNA duplication before mitosis
59%
Synthesis of RNA from the DNA template
12%
Protein synthesis from mRNA
5%
Repair of damaged DNA strands
β€1
Which law describes the gravitational force between two masses?
Anonymous Quiz
16%
Coulomb's law
2%
Hooke's law
80%
Newton's law of universal gravitation
2%
Gauss's law