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WorksheetsCarbohydrates
Total questions: 20
Worksheet time: 7mins
What is the general empirical formula for carbohydrates?
Cn(H2O)n
Cn(H2O)n-1
C2n(H2O)n-2
C6H12O6
Which of the following best describes the main elements found in carbohydrates?
Carbon, hydrogen, and oxygen
Carbon, nitrogen, and sulfur
Hydrogen, oxygen, and phosphorus
Nitrogen, phosphorus, and potassium
Which of the following best describes monosaccharides?
They are the simplest carbohydrates and cannot be hydrolyzed into smaller carbohydrates.
They are complex carbohydrates made of many sugar units.
They are proteins that help in digestion.
They are lipids that store energy.
Although glucose, galactose, and fructose all have the chemical formula C6H12O6, why do they differ?
Because of the different arrangement of functional groups around their asymmetric carbon.
Because they have different numbers of carbon atoms.
Because they are all disaccharides.
Because they are all proteins.
Monosaccharides are the building blocks of which carbohydrate groups?
Disaccharides and polysaccharides
Proteins and lipids
Nucleic acids and vitamins
Fatty acids and oils
Which of the following is NOT a monosaccharide?
Glucose
Galactose
Fructose
Sucrose
Which monosaccharide is an important source of energy in humans and plants?
Glucose
Mannose
Ribose
Galactose
A student is given a sample of a disaccharide and told it does not have a free hemiacetal group. Which of the following disaccharides is most likely present?
Sucrose
Maltose
Cellobiose
Lactose
N-linked and O-linked oligosaccharides differ in their attachment sites and cellular locations. Which of the following statements correctly describes this difference?
N-linked attach to asparagine in the ER; O-linked attach to threonine/serine in the Golgi apparatus.
N-linked attach to threonine in the Golgi; O-linked attach to asparagine in the ER.
N-linked attach to serine in the cytoplasm; O-linked attach to asparagine in the mitochondria.
N-linked attach to glycine in the nucleus; O-linked attach to alanine in the plasma membrane.
Which acidic sugar is commonly found in hyaluronic acid?
L-iduronic acid
D-glucuronic acid
N-acetylglucosamine
N-acetylgalactosamine
Which of the following is an example of a structural polysaccharide?
Chitin
Starch
Glycogen
Inulin
Cellulose is an important constituent of the diet for which group of animals?
Ruminants
Carnivores
Birds
Amphibians
Which substance provides a supporting structure in the cell wall of marine algae?
Agarose
Peptidoglycan
Heparin
Keratan sulfate
What is the function of chondroitin in cartilage?
Provides resistance against compression
Acts as a natural anticoagulant
Involved in wound repair
Promotes angiogenesis
Dermatan sulfate is involved in which of the following processes?
Wound repair, blood coagulation regulation, infection responses, and cardiovascular diseases
Absorbing mechanical shocks
Providing strength to cell walls
Promoting tumor metastasis
Which of the following is an example of Epimers?
Glucose and Ribose
Glucose and Galactose
Galactose and Ribose
Glucose, Ribose and Mannose
Maltose is a disaccharide of ___________.
Glucose and Glucose (alpha-1,4 linkage)
Glucose and Glucose (alpha-1, alpha-1 linkage)
Glucose and Glucose (beta-1,4 linkage)
Glucose and Glucose (beta-1,6 linkage)
Which of the following is the simplest carbohydrate?
Glucose
Galactose
Dihydroxyacetone
Glyceraldehyde
The only carbohydrate which does not have any chiral carbon atoms is____________.
Glyceraldehyde
Erythrose
Dihydroxyacetone
Erythrulose
Raffinose is a trisaccharide composed of ______________.
Galactose and mannose
Glucose, fructose and galactose
Cellulose and glucose
Glucose, fructose and ribose
