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Biology topic 2 - Statistics
General Stats
- This quiz has been taken 15 times
- The average score is 5 of 50
Answer Stats
| Hint | Answer | % Correct |
|---|---|---|
| which sugar do DNA nucleotides contain | deoxyribose | 70%
|
| What are the monomers of nucleic acids | nucleotides | 60%
|
| how many hydrogen bonds form between a and t in a molecule of DNA | 2 | 50%
|
| how many hydrogen bonds form between c and g in a molecule of DNA | 3 | 50%
|
| Which type of bond forms between complementary base pairs in DNA | hydrogen | 50%
|
| nitrogenous base | 40%
| |
| what is a single-stranded molecule made up of one polynucleotide strand | RNA | 40%
|
| phosphate group | 30%
| |
| Which 3 components make up a nucleotide | pentose sugar | 20%
|
| what is larger and has two carbon ring structures | purine | 20%
|
| what its smaller and only has one carbon ring structure | pyrimidine | 20%
|
| what is an ion with a negative charge | anion | 10%
|
| give an example of a cation | calcium/sodium/potassium/hydrogen/ammonium/iron | 10%
|
| what is an ion with a positive charge | cation | 10%
|
| give an example of an anion | chloride/phosphate/hydroxide/nitrate | 10%
|
| what joins nucleotides together via phosphodiester bonds | dna polymerase | 10%
|
| what is an atom or group of atoms with an electric charge | ion | 10%
|
| Water being a ______ is useful as most biological reactions take place in solution and so dissolved substances can be transported around the body | solvent | 10%
|
| which bases are pyrimidines | t and c | 10%
|
| Water is known as the _________ because it dissolves more substances than any other liquid. | universal solvent | 10%
|
| 3 phosphate groups | 0%
| |
| What 3 parts does a molecule of ATP consist of | adenine | 0%
|
| What are the products of ATP hydrolysis | adenine diphosphate | 0%
|
| What does ATP stand for | adenine triphosphate | 0%
|
| what is the tendency of water to stick to other materials | adhesion | 0%
|
| What enzyme catalyses the hydrolysis of ATP | atp hydrolase | 0%
|
| What enzyme catalyses the resynthesis of ATP | atp synthase | 0%
|
| How is ATP broken down | by atp hydrolase in a hydrolysis reaction | 0%
|
| How does ATP activate other molecules | by phosphorylating them | 0%
|
| what is the tendency of water molecules to stick together | cohesion | 0%
|
| what allows water to flow through organisms, carrying substances along with it | cohesion and adhesion | 0%
|
| What reaction takes place to join nucleotides together during semi-conservative DNA replication | condensation | 0%
|
| contain cga bases | 0%
| |
| What are the similarities between DNA and RNA | contain nucleotides | 0%
|
| contain phosphodiester bonds | 0%
| |
| ^why is this important for organisms | cooling off without losing too much water | 0%
|
| in a water molecule, the oxygen atom has a slightly negative charge whilst the hydrogen atoms have a slightly positive charge so the water is | dipolar | 0%
|
| what breaks hydrogen bonds between complementary bases to unwind the double helix and separate the strands | dna helicase | 0%
|
| what is it when a lot of energy is needed to break the hydrogen bonds to change water from a liquid to a gas | high latent heat of vaporisation | 0%
|
| what is it when a lot of energy is required to raise the temperature of water | high specific heat capacity | 0%
|
| what is the attraction between the partially positive hydrogen end of one water molecule and the partially negative oxygen end of another water molecule | hydrogen bonding | 0%
|
| what do you call an ion that does not contain carbon | inorganic | 0%
|
| inorganic phosphate | 0%
| |
| Why is water a suitable habitat for many organisms | it doesn't change temperature or evaporate easily | 0%
|
| What are some uses of ATP in the body | movement and active transport/synthesis of large molecules/secretion of substances | 0%
|
| ribose | 0%
| |
| Which sugar and nitrogenous bases do RNA nucleotides contain | ribose aucg | 0%
|
| what refers to the fact that each of the newly synthesised DNA molecules is made up of one original DNA strand and one new DNA strand | semi conservative replication | 0%
|
| What are the roles of water in living organisms | solvent and temperature control/habitat and metabolite/transport | 0%
|
| What is released during the condensation reaction to reform ATP | water molecule | 0%
|
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