Copy and Edit

Biology Advanced higher - part of cell and molec

Description

part of cell and molecular course
Katie Bryden
Quiz by Katie Bryden, updated more than 1 year ago
Katie Bryden
Created by Katie Bryden over 9 years ago
34
0
0

Resource summary

Question 1

Question
Which is the only amino acid class that is hydrophobic
Answer
  • acidic
  • non-polar
  • polar
  • basic

Question 2

Question
The reaction that forms when two amino acid monomers are liked together is a hydration reaction
Answer
  • True
  • False

Question 3

Question
In which stage of the protein structure does interactions between R-groups of amino acids occur ?
Answer
  • primary
  • secondary
  • tertiary
  • quaternary

Question 4

Question
Which one is the description for hydrophobic interactions in the protein structure ?
Answer
  • Non-polar R groups are mostly arranged to the inside of the protein. The Polar, acidic and basic R groups are mostly arranged on the outside
  • Very weak attractions between the electron clouds of atoms
  • The weak negative charge of the oxygen of the C=o is attracted to the weak positive charge on a hydrogen of an OH or NH2 group
  • The COOH and NH2 groups ionise to become COO- and NH3+. These groups are strongly charged and can attract each other
  • Covalent bonds form due to reactions between the Sulphur-containing R groups of cysteines

Question 5

Question
Choose two purines
Answer
  • Adenine
  • cytosine
  • uracil
  • guanine
  • thymine

Question 6

Question
The phosphodiester bonds link in the ......
Answer
  • 3' to 5' direction
  • 5' to 3' direction
  • 2' to 6' direction
  • 6' to 2' direction

Question 7

Question
which of the following describes the structure of cytosine
Answer
  • A purine base with a single-ring structure
  • A purine base with a double bond structure
  • A pyrimidine base with a single-ring structure
  • A pyrimidine base with a double ring structure

Question 8

Question
how many hydrogen bonds link together cytosine and guanine
Answer
  • 2
  • 4
  • 3
  • 1

Question 9

Question
What do you call proteins that are easily removed from membranes in the laboratory using ionic washes
Answer
  • lateral
  • integral
  • horizontal
  • peripheral

Question 10

Question
Attachment proteins are Proteins which provide cytoskeleton attachment points within the membrane for the structural support of the cell.
Answer
  • True
  • False

Question 11

Question
The covalent chemical bonds between nucleotides in DNA are
Answer
  • peptide
  • phosphodiester
  • glycosidic
  • hydrogen

Question 12

Question
Refer to the picture - which colour shows the phosphate group
Image:
a4d03b82-b8c8-49ef-bba5-01f3d89ab32b (image/png)
Answer
  • orange
  • blue
  • green
  • purple

Question 13

Question
Why is cholesterol important in the membrane structure ? (could be more than one answer)
Answer
  • reduced membrane fluidity
  • allows diffusion across the membrane
  • used to maintain the structure of the membrane
  • prevents solidification of the membrane at low temperatures
  • prevents solidification of the membrane at high temperatures

Question 14

Question
What converts inactive trypsinogen in to active trypsin
Answer
  • kinase
  • phosphate
  • protease
  • glycogen

Question 15

Question
which one is true about a positive modulator (could be more than one answer)
Answer
  • It is also known as an activator
  • reduces the affinity of the enzyme
  • binds to a different allosteric site
  • increases the formation of all products
  • also known as an inhibitor
  • changes the shape of the enzyme

Question 16

Question
End product inhibition is when the end product binds to the substrate
Answer
  • True
  • False

Question 17

Question
end product inhibition is a form of .....
Answer
  • non- competitive inhibitor
  • the induced fit hypothesis
  • extracellular signalling
  • negative feedback
  • positive modulator

Question 18

Question
The actions of protease
Answer
  • Hydrolysis of peptide bonds break down proteins
  • Hydrolysis of phosphodiester bonds to break down nucleic acids
  • Hydrolysis of the phosphodiester bond in ATP to form ADP and phosphate
  • Condensation reaction to add to phosphate group to another molecule

Question 19

Question
the actions of kinases
Answer
  • Hydrolysis of peptide bonds break down proteins
  • Hydrolysis of phosphodiester bonds to break down nucleic acids
  • Hydrolysis of the phosphodiester bond in ATP to form ADP and phosphate
  • Condensation reaction to add to phosphate group to another molecule

Question 20

Question
Find the incorrect answer on enzymes
Answer
  • they are biological catalysts
  • lower the activation energy
  • speeds up the reaction
  • regulate half of the metabolic reactions in a cell

Question 21

Question
competitive inhibitors are non-specific so can be used with a range of enzymes
Answer
  • True
  • False

Question 22

Question
which of the following are correct about inhibitors reducing reaction rates
Answer
  • they can alter enzyme's shapes so it becomes inactive
  • they can resemble the substrate
  • they bind to another part of the enzyme
Show full summary Hide full summary

Want to create your own Quizzes for free with GoConqr? Learn more.

Similar

Biology AQA 3.1.3 Cells
evie.daines
Biology AQA 3.2.5 Mitosis
evie.daines
Biology AQA 3.1.3 Osmosis and Diffusion
evie.daines
Biology- Genes, Chromosomes and DNA
Laura Perry
Biology- Genes and Variation
Laura Perry
Enzymes and Respiration
I Turner
GCSE AQA Biology - Unit 2
James Jolliffe
GCSE AQA Biology 1 Quiz
Lilac Potato
Using GoConqr to study science
Sarah Egan
Cells and the Immune System
Eleanor H
GCSE Biology AQA
isabellabeaumont
Browse Library