Ch.5 - Biological MoleculesSee all chapters
All Chapters
Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch.4 - Carbon
Ch.5 - Biological Molecules
Ch.6 - Cells
Ch.7 - The Membrane
Ch.8 - Energy and Metabolism
Ch.9 - Respiration
Ch.10 - Photosynthesis
Ch.11 - Cell Signaling
Ch.12 - Cell Division
Ch.13 - Meiosis
Ch.14 - Mendelian Genetics
Ch.15 - Chromosomal Theory of Inheritance
Ch.16 - DNA Synthesis
Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
Ch.19 - Viruses
Ch.20 - Biotechnology
Ch.21 - Genomics
Ch.22 - Development
Ch.23 - Evolution by Natural Selection
Ch.24 - Evolution of Populations
Ch.25 - Speciation
Ch.26 - History of Life on Earth
Ch.27 - Phylogeny
Ch.28 - Prokaryotes
Ch.29 - Protists
Ch.30 - Plants
Ch.31 - Fungi
Ch.32 - Overview of Animals
Ch.33 - Invertebrates
Ch.34 - Vertebrates
Ch.35 - Plant Anatomy
Ch.36 - Vascular Plant Transport
Ch.37 - Soil
Ch.38 - Plant Reproduction
Ch.39 - Plant Sensation and Response
Ch.40 - Animal Form and Function
Ch.41 - Digestive System
Ch.42 - Circulatory System
Ch.43 - Immune System
Ch.44 - Osmoregulation and Excretion
Ch.45 - Endocrine System
Ch.46 - Animal Reproduction
Ch.47 - Nervous System
Ch.48 - Sensory Systems
Ch.49 - Muscle Systems
Ch.50 - Ecology
Ch.51 - Animal Behavior
Ch.52 - Population Ecology
Ch.53 - Community Ecology
Ch.54 - Ecosystems
Ch.55 - Conservation Biology


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Nucleic Acids
Additional Practice
Cumulative Macromolecules

Concept #1: Carbohydrate Structure

Concept #2: Carbohydrate Function

Practice: Monosaccharides are linked together via a _____________________ reaction, forming a ____________________bond.

Practice: Which of the following is not a function of carbohydrates?

Additional Problems
Chitin, a modified form of cellulose, is not only cross-linked with proteins but also its glucose units are modified with atoms of a. nitrogen b. hydrogen c. oxygen d. sulfur e. phosphorous
The water-insoluble portion of starch is calleda. amylopectinb. amylosec. cellulosed. glycogene. chitin
Sucrose is a disaccharide consisting of the monosaccharides:  a. Fructose and glucose b. Glucose and glucose c. Galactose and fructose d. Glucose and galactose
The chemical formula for glucose is:  a. C6H6O6 b. C12H6O12 c. C12H22O11 d. C6H6O12 e. C6H12O6
Lactose is a disaccharide composed of the linked sugars a. glucose and galactose b. glucose and fructose c. glucose and lactose d. sucrose and galactose
Examples of monosaccharides are:  a. Glucose, maltose, and cellulose b. Glucose, lactose, and maltose c. Glucose, galactose, and fructose d. Glucose, lactose, and cellulose e. None of these are correct
Using examples describe polysaccharides and their different classes.
On which surface of a membrane would you find oligosaccharides (exterior or cytosolic)?
Which of the following are roles of carbohydrates in nature? Check all that apply.A. serve as energy stores in plants and animals.B. are major structural components of mammalian tissues.C. are constituents of nucleic acids.D. are conjugated to many proteins and lipids.E. are found in the structures of all the coenzymes.
This disaccharide is composed of two ________ residues linked by a(n) __________ glycosidic bond.A. glucosamine :: alpha (1-4)B. glucosamine :: beta (1-4)C. N-acetylglucosamine :: alpha (1-4)D. N-acetylglucosamine :: beta (1-4)
Lactose is also known as _____.A. O-β-D-galactopyranosyl-(1→4)-D-glucopyranoseB. O-α-D-glucopyranosyl-(1→2)-β-D-fructofuranosideC. O-α-D-glucopyranosyl-(1→4)-α-D-glucopyranose
How do the structures of glucose and galactose differ?A. The spatial arrangement of the hydroxyl group of the fourth carbon is different.B. Glucose is a hexose; galactose is a pentose.C. Glucose is an aldose; galactose is a ketose.D. Glucose has more hydrogen and fewer oxygen atoms than galactose.
Which statement is FALSE regarding the disaccharide in Figure 1 shown below?A. Point (A) is an acetalB. Point (B) was an alcohol before becoming part of a glycosidic bondC. Point (C) is an acetalD. Point (D) is a plain alcoholE. Point (A) was a hemiacetal before becoming part of a glycosidic bond