B1.2 Proteins
17 review questions with answers for B1.2 Proteins, marked SL and HL. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
The linear sequence of amino acids in a polypeptide chain?
- Hydrogen bonds
- Prosthetic group
- Primary structureRight answer
- Peptide bond
All 17 questions and answers
The linear sequence of amino acids in a polypeptide chain?
Answer: Primary structure
Local folding (alpha helices/beta sheets) held by hydrogen bonds between groups in the polypeptide backbone?
Answer: Secondary structure
The 3D folding of a single chain caused by R-group interactions?
Answer: Tertiary structure
Structure formed when multiple polypeptide chains link together?
Answer: Quaternary structure
A non-protein molecule tightly bound to a protein (e.g., the heme group)?
Answer: Prosthetic group
A protein that includes a prosthetic group in its structure?
Answer: Conjugated protein
Strong covalent bond between the sulfur atoms of two cysteine residues?
Answer: Disulfide bridge
Weak attractions between polar R-groups?
Answer: Hydrogen bonds
Attractions between positively and negatively charged R-groups?
Answer: Ionic bonds
The clustering of non-polar R-groups away from water?
Answer: Hydrophobic interactions
A spiral coil stabilized by hydrogen bonds between every fourth amino acid?
Answer: Alpha helix
A structure where parts of the chain run side-by-side, held by hydrogen bonds?
Answer: Beta pleated sheet
The monomer of proteins with an amino group, carboxyl group, and variable R group?
Answer: Amino acid
The covalent bond linking amino acids, formed by a condensation reaction?
Answer: Peptide bond
The loss of a protein's 3D structure due to high heat or extreme pH?
Answer: Denaturation
Compact, roughly spherical proteins that are usually water-soluble?
Answer: Globular protein
Long, thread-like structural proteins that are insoluble in water?
Answer: Fibrous protein
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options are other answers from the same set.