Catalysts — Unit test Answers

Jun is at risk for heart disease so he is watching his cholesterol levels. He refers to the table below to choose what is best for his health.Comparison Chart of Fats Food (14 g)Saturated Fat (g)Monounsaturated Fat (g)Polyunsaturated Fat (g)Butter7.93.70.5Cream cheese3.01.50.2Margarine1.65.43.4Peanut butter1.44.02.6Which snack is the healthiest option for Jun, based on the data in the table?

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?

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

Which statement describes how enzymes and substrates are related?

Read the following information from a Material Safety Data Sheet (MSDS) about the chemical hydrochloric acid (HCl).“Skin Contact: In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention immediately.”Based on this information, which is the most important thing to do right away if a student spills HCl on his shirt?

A Venn diagram can be used to compare and contrast nucleic acids.Which characteristic would be correctly found in B?

How does a catalyst influence a chemical reaction?

Lactose (milk sugar) is a carbohydrate that is formed by combining galactose and glucose. Which term best describes this molecule?

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

Which reaction is exothermic?

What type of lipid is estrogen?

Which food contains mostly polysaccharides?

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

In which part of the body is glycogen stored?