Catalysts — Unit test Answers

The diagram shows a simple lipid.What type of lipid is shown?

Which statement describes one way that RNA differs from DNA?

How does a catalyst influence a chemical reaction?

There are more hydrogen atoms in living organisms than any other atom, but oxygen is more abundant in terms of mass. Why is this statement true?

Which component is affected when a catalyst is added to a chemical reaction?

Which recent discovery led to a new understanding of how genetic mutations increase the risk of cancer?

Where does a peptide bond form?

Which food contains mostly polysaccharides?

The brothers pictured below are identical twins.The boys in this picture look alike because their bodies contain identical

Which type of macromolecule is made up of subunits that are called amino acids?

A doctor suspects that one of her patients has a deficiency in one of the six key elements found in living organisms. He has low energy and extremely weak, soft bones. Based on this information alone, which nutrient supplement will she most likely prescribe?

Which statement describes how enzymes and substrates are related?

The diagram shows a straight chain of glucose molecules. Which carbohydrate is shown above?

A dietician examines the diet of a patient who is complaining that he is unable to build muscle mass. The patient eats mainly fresh fruits, vegetables, pasta, bread, and some fats and oils. Which type of supplement will the dietician most likely recommend?

What would most likely happen to plants if they did not have a waxy outer coating?