Biological molecules: metabolism
20 review questions with answers for Biological molecules: metabolism. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
Elements found in all carbohydrates?
- C, H and ORight answer
- C, H, O and N
- C, H, O and P
- C, H, N and S
What this set covers
Chemical elements and reaction types come first in this set: which of C, H, O, N, P and S appear in carbohydrates, proteins and nucleic acids, then metabolism, anabolism, catabolism, condensation, hydrolysis, monomers and polymers.
- Common mix-up
- Students often mix up condensation and hydrolysis, and anabolism and catabolism: condensation joins monomers and releases water, while hydrolysis uses water to split them, which makes it catabolic.
- Review tip
- Make a grid of carbohydrates, proteins and nucleic acids, fill in the elements each contains from memory, then check which element is the odd one out in each pair.
All 20 questions and answers
Elements found in all carbohydrates?
Answer: C, H and O
Elements found in all nucleic acids?
Answer: C, H, O, N and P
Four elements found in every protein?
Answer: C, H, O and N
Element found in nucleic acids but not in proteins?
Answer: Phosphorus
Element found in proteins and nucleic acids but not in carbohydrates?
Answer: Nitrogen
Element often found in proteins but not in carbohydrates or nucleic acids?
Answer: Sulfur
The web of all the enzyme-catalysed reactions in a cell or organism?
Answer: Metabolism
Type of reactions that build larger molecules from smaller ones and requires energy?
Answer: Anabolism
Type of reactions that break larger molecules into smaller ones and release energy?
Answer: Catabolism
Reaction that joins two monomers with a covalent bond and releases water?
Answer: Condensation
Reaction that uses water to break the bond between two monomers?
Answer: Hydrolysis
Small molecule released each time a condensation reaction joins two monomers?
Answer: Water
Hydrolysis reactions are classed as…?
Answer: Catabolic
Large molecule built from many repeating subunits joined together?
Answer: Polymer
Monomer of carbohydrates?
Answer: Monosaccharide
Without enzymes, metabolic reactions at body temperature would be…?
Answer: Far too slow
Group of biological molecules that is the cell's main source of energy?
Answer: Carbohydrates
Group of biological molecules used mainly for long-term energy storage?
Answer: Lipids
Group of biological molecules that forms enzymes and is used to repair tissues?
Answer: Proteins
Group of biological molecules that stores and expresses the genetic code?
Answer: Nucleic acids
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 were written for that question.