Short-QUIZ- Carbohydrates PDF

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Name: ___________________ Grade & Section: __________

Date: ____________ Score: ______/30 QUIZ NO. 1 CARBOHYDRATES

I. MULTIPLE CHOICE Choose the best answer from the given choices. There is only one answer per item. 1. Which of the following makes carbohydrates unique from the other biological macromolecules? a. Long-term energy storage is provided by carbohydrates. b. Carbohydrates contain a 1:2:1 ratio of carbon to hydrogen to oxygen. c. The monomers in carbohydrates are held together by peptide bonds. d. Carbohydrates are polymers that always form a ring structure. 2. What type of carbohydrate is sucrose? a. trisaccharide b. disaccharide

c. monosaccharide d. polysaccharide

3. Which of the following statements is true of the carbohydrate glucose? a. Glucose is a structural isomer of galactose. b. Glucose contains carbon, hydrogen, and oxygen atoms. c. Glucose is a pentose sugar. d. Glucose is a polysaccharide. 4. Which of the following contain the same number of carbons as glucose? a. fructose c. sucrose b. galactose d. glycogen 5. Hexose is a six-carbon monosaccharide which is found in many biologically important carbohydrates, including glucose. How many hydrogen atoms would you expect hexose to have if it has six carbon atoms, and six oxygen atoms? a. six c. twelve b. eight d. fourteen 6. Which of the following is a primary function of carbohydrates? a. Acting as a long-term energy source b. Storing genetic information c. Providing short-term energy storage d. Speeding up chemical reactions

II. IDENTIFICATION Identify what is being describe in each statement. ______1. A large molecule made of repeating subunits (monomers). ______2. A polysaccharide which is a major component of plant cell walls, which are rigid structures that enclose the cells ______3. Stored form of sugars in plants and is made up of a mixture of two polysaccharides, amylose and amylopectin. ______4. Macromolecule that makes up the exoskeleton which protects the softer internal body parts of arthropods (such as insects and crustaceans). ______5. It is the building block of carbohydrate. III. FILL IN THE BLANKS Fill each blank with the correct answer.

1–2 3–5 6 – 14

Categories of Carbohydrates Types of Carbohydrates Examples of Carbohydrates

IV. ESSAY Answer the following questions. 1. What is the structure of carbohydrate? (1 point) _____________________________________________________________________________________

2. What is the role of carbohydrate in the specific metabolic process? (1 point) ______________________________________________________________________ ______________________________________________________________________ 3. State the functions of carbohydrates. (3 points) _____________________________________________________________________________________ _____________________________________________________________________________________...