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Carbohydrates MCQ Science

Attempt now to check your rank among 18 students! 50 Questions 30 Mins

About Carbohydrates

Following are some of the multiple choice questions on the Carbohydrates with answers that will help the students in developing their knowledge.

Carbohydrates MCQ

1. What atoms make up all carbohydrates?

Carbon, Sulfur, Hydrogen
Carbon, Oxygen, Phosphorus
Carbon, Oxygen, Nitrogen
Carbon, Oxygen, Hydrogen

2. These are all properties of a disaccharide EXCEPT:

made up of two sugars
sucrose
2 monosaccharides joined by dehydration synthesis
ratio of 1:2:1

3. These are all properties of a monosaccharide EXCEPT:

simple sugar
1:2:1 ratio
double sugar
used for energy

4. What two groups are removed from monosaccharides to form disaccharides or polysaccharides

water and oxygen
hydrogen and hydroxyl group
carbon and hydrogen
water and carbon

5. How do the number of H atoms compare to the number of O atoms in a carbohydrate?

There are TWICE as many H
They are the same amount
There are THREE times as many H
There are TWICE as many O

6. Which foods do not contain natural sugar?

apple
milk
strawberry
none of the above

7. Which polysaccharide is used by plants to store glucose?

glycogen
cellulose
starch
chitin

8. Starch is an example of a polysaccharide found in plants. What is the monomer of starch (Hint: it is an example of a monosaccharide)?

sucrose
glucose
glycogen
lactose

9. Which polysaccharide is used by plants to make their cell wall?

starch
glycogen
cellulose
chitin

10. Important to the structural integrity of plant cells, this is the single most popular polysaccharide in the world.

Starch
Glycogen
Cellulose
Chitin

11. Polymers form when a single water molecule is removed from between two monomers

Dehydration synthesis
Hydrolysis

12. Molecules that occur naturally in living organisms.

Biomolecules
Compounds
Organics
Inorganics

13. How many categories of carbohydrates are there?

1
2
3
There are no categories

14. Makes up the plants cell wall and is fiber in our diets

Starch
Glycogen
Cellulose
all of the above

15. Carbohydrtaes are made up of

CHO
CHON
CHONS
CHONPS

16. Sucrose (table sugar) Lactose (Milk Sugar) Maltose (Grain sugar) are examples of

polysaccharides
monosaccarides
disaccharides
all of the above

17. Which health problems is a consequence of eating too much added sugar?

overweight
heart disease
diabetes
all of the above

18. Which is not a chemical element needed to build sugars?

Carbon
Oxygen
Nitrogen
Hydrogen

19. Carbohydrates are the first source of _______ for the body?

repair
hygiene
fuel
None of these

20. What two monosaccharides make up maltose?

glucose + galactose
glucose + glucose
glucose + fructose
glucose + glycogen

21. Which polysaccharide makes up the exoskeleton of insects?

cellulose
starch
chitin
glycogen

22. What is the polysaccharide used by animals to store glucose?

glycogen
fructose
starch
cellulose

23. Which monosaccharide is the sweetest?

glucose
fructose
galactose
sucrose

24. What makes up the disaccharide sucrose?

glucose + glucose
glucose + fructose
glucose + galactose
glucose + maltose

25. Lactose is composed of

glucose + fructose
glucose + glucose
glucose + sucrose
glucose + galactose

26. Which of the following is NOT a monosaccharide?

starch
fructose
glucose
galactose

27. What is the monomer of carbohydrates

disaccharides
monosaccharides
amino acids
fatty acids

28. Which has more energy, 1.0 g of carbohydrate or 1.0 g of lipid?

Carbohydrate
Lipid

29. What is not a type of carbohydrate?

Fat
Fiber
Starch
Sugar

30. Sugars all end with what three letter ending?

-ote
-ate
-ase
-ose

31. Carbohydrates are comprised of Carbon, Hydrogen, Oxygen, and Nitrogen

True
False

32. A single unit of sugar is referred to as:

Monosaccharide
Monocarbohydrate
Mononutrient
Monopolymer

33. Carbohydrates yield how many Calories per gram?

0 Cal/gram
9 Cal/gram
4 Cal/gram
2.25 Cal/gram

34. The scientific name for table sugar is ___

lactose
sucrose
galactose
glucose

35. C6H12O6 is the molecular formula for what carbohydrate?

Sucrose
Glucose
Fructose
Both glucose and fructose

36. The 3 categories of carbohydrates are:

Monosaccharide, disaccharide, polysaccharide
glucose, fructose, galatose
starch, cellulose, chitin
There are no categories of carbohydrates

37. Which of these are examples of carbohydrates?

DNA, RNA
Fats, hormones
amino acids
starches, glucose, chitin

38. All carbohydrate names end with which ending:

ise
ase
ese
ose

39. Which do all carbohydrates do for us?

provide energy
make muscle
make brains
make hair

40. How many sugar units make up polysaccharides?

one
two
more than two
zero

41. The process of removing water in order to form a bond between monomers is called....

Dehydration Synthesis
Hydrolysis

42. The process of digesting a polysaccharide into individual monosaccharides is called....

Dehydration Synthesis
Hydrolysis

43. The process of breaking the bonds within a starch molecule in order to release glucose molecules is called......

Dehydration Synthesis
Hydrolysis

44. Some carbohydrate foods are ________

fruits
grains
vegetables
all the above

45. The process of adding water in order to break bonds within a polymer....

Dehydration Synthesis
Hydrolysis

46. How many sugar units make up disaccharides?

one
two
three
zero

47. How many sugar units make up monosaccharides?

one
two
three
zero

48. Stored in the liver

Starch
Glycogen
Cellulose
none of the above

49. Found in fruits, vegetables, grains, potatoes, pasta, breads.

Starch
Glycogen
Cellulose
none of the above

50. __+_= Maltose

glucose + glucose
glucose+ fructose
glucose + galactose
Both A and B

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