Water Carbohydrates And Lipids

Which feature of a water molecule allows it to dissolve ionic solutes such as sodium chloride?

A student is told that a substance is transported in blood plasma in dissolved form. Which of the following is most likely to be that substance?

Which statement correctly describes the structure of amylopectin?

Why is glycogen more highly branched than amylopectin?

A student adds Benedict’s reagent to a solution containing pure sucrose and heats it in a water bath. What result would be expected?

During the synthesis of one triglyceride molecule, how many water molecules are released and what type of bond is formed?

Which combination correctly describes an unsaturated triglyceride?

A student claims that maltose will not produce a positive Benedict’s test because it is a disaccharide. Why is this reasoning incorrect?

Which of the following best explains why polysaccharides are well suited for energy storage in cells?

A climber prepares for an expedition by eating large amounts of pasta in the days before climbing. Which statement best explains the biological reasoning behind this?

In a semi-quantitative Benedict’s experiment, a student wishes to obtain the most objective and accurate measure of reducing sugar concentration. Which method should they use?

Which equation correctly represents the hydrolysis of maltose?

Hydrogen bonds in liquid water form between which two atoms on adjacent molecules?

A student tests an unknown solution with iodine and observes no colour change (stays orange-brown). They then test the same solution with Benedict’s reagent and observe a brick-red precipitate. Which sugar is most likely present?

Which of the following correctly identifies the bond type formed during the condensation of glycerol with a fatty acid, and the functional groups involved?

Why does water rise as a continuous column up the xylem during transpiration?