CHEM 855 - Week 4

Gal is the abbreviation for which common monosaccharide?

What is the geometry around each carbon in a monosaccharide ring?

A polysaccharide consists of how many sugars?

Two sugars are classified as an epimer when differ in configuration of how many chiral centers?

1. The change from the α form of a cyclic carbohydrate to the β form is called

What is the difference between an aldose and a ketose?

If a monosaccharide has a carbonyl group and the end of the carbon chain it is called ________.

A Monosaccharide with seven carbons is a ______________

What methods are used to determine structure of oligosaccharides and polysaccharides?

In the formation of maltose, the hemiacetal portion will be found in what configuration?

Most sugars found in nature occur naturally as what?

Polysaccharides serve as stored fuel and ___ components of cell walls and extracellular matrix.

What is the most abundant biomolecule on the planet?

What type of projection is letter B?

How many carbon atoms does D-Threose have?

The exoskeleton of insects is made out of what polysaccharide?

Glucose can have ___ isomers due to it having 4 asymmetric carbon atoms.

In the Fischer projection of glucose, which carbon is the chiral carbon?

The picture shows an example of what type of formation?

Storage polypeptides are ___ configurations, while structural are __ configurations.

Which best describes amylopectin?

In a hayworth representation, the hydroxyl group below the plane of the field will appear

_____ is found in the cell walls of plant cells and cannot be digested by humans.

Which of the following is NOT a way to classify monosaccharides?

What term is defined as the process of interconversion of monosaccharide rings between α and β?

In which position is the second hydroxyl group in the image?

Which of the following is a monosaccharide?

Polysaccharides are polydispersed which means they do not have a single molecule size

The picture shows what type of carbohydrate representation.

What is a major component of a plant cell wall?

1. In forming a ketal or acetal

T of F Sugars are compounds containing an aldehyde or ketone group and one hydroxyl group.

Humans cannot use cellulose as a fuel source because

Chitin in a polysaccharide that makes up muscle fibers in animals.

If an OH group is pointing down in a Haworth rep., it would face _____ in a Fischer rep.

Using the equation, 2^N, how many stereoisomers does the monosaccharide pictured below have?

What must be at the "reducing end" of a reducing sugar to be able to oxidize materials like Cu?

substituents in the ____ position have _____ steric hinderance

How many stereo-isomers does the molecule pictured have?

During photosynthesis, carbon is experiencing what kind of reaction

Glc is the abbreviation for which common monosaccharide?

If the carbonyl group is at the end, in an aldehyde group the monosaccharide is ______________.

Which form of D-Glucose is energetically favored in solution

What has one or several oligosaccharides of varying complexity joined covalently to a protein?

What type of reaction occurs with glycosidic bonds form?

What do the three formulas pictured have in common?

1. A mirror image of a molecules is called a(n)

What happens when a reducing sugar is oxidized?

Which of the following options contains 5 carbon atoms?

Which of the following polysaccharides is the least branched?

A type of epimer, a(n)___ is an isomer that differs around the hemiacetal carbon

Based on their molecular formulas, which of the following are NOT carbohydrates?

What is the name of the structure shown in the picture?

In a Fischer projection, the D designation is for a chiral carbon with the hydroxyl group

Which term refers to a 5 member monosaccharide ring?

Glycoconjugates can act as signals to determine location or metabolic fate of molecules.

What mechanism is proposed for how the cyclic structure of sugar is formed?

The formation of an Acetal is formed from a ____ reacting with an alcohol

1. Carbohydrates are reducing sugars because one of the carbons can be oxidized.Is it?

Two sugars that differ only in the configuration around one carbon atom are called _____.

A hemiacetal is formed between ___ and ___ functional groups in monosaccharides.

This sugar provides a code with an essential unique word small enough to be read by a 1 protein

Why can't humans process cellulose?

In a Fischer model, a OH on the right, indicates a(n) __ OH in Haworth model

What type of bond is formed when a hydroxyl group of a sugar reacts with an anomeric carbon?

The Haworth projection structure of _________ is show in the picture.

Which of the follow best describes the molecule in the picture?

Joining together two monosaccharides can be classified as what kind of reaction?

This describes which homopolysaccharides: branched, α 1-4 main chain, redidues every 8-12 C

When 2 sugars differ by configuration of a single chiral center, they are called

Which of the following best describes the molecule in the picture

1. The chemical equation for the combustion of ribose is ribose + oxygen -->

If a carbohydrate consist of a single polyhydroxy aldehyde or ketone unit it is a _____.

How does amylopectin differ from amylose?

1. Amylose is

Which polysaccharides can humans not digest?

The equation to calculate the number of stereo-isomers for a chiral compound is:

Homopolysaccharides are made up of how many types of monosaccharides?

A glycosidic bond is

Which of the following is considered a nonreducing sugar?

Sugars that differ only in the configuration around one carbon atom are called ___.

Which of the following is not a monosaccharide?

How many stereoisomers will a compound with 4 chiral centers have?

This carbohydrates are the main surface feature of the outermembrane of gram-negative bacteria.

What are the 3 classes of carbohydrates?

Which term describes molecules with the same chemical comp, but differ in 3D arrangement?

Why is the beta-D-glucose structure energetically favored?

Which of the following is not a monosaccharide with five carbon atoms?

The word we use to describe a unit of carbohydrates.

Which term explains the change in configuration between beta and alpha glucopyranose?

Which of the following is used for energy storage in plants?

Amylose and amylopectin differ in

1. A hemiketal is formed by combining an

Six-membered ring compounds called ____ are named after the compound ____.

1. Amylose is different from amylopectin because

Which ending is used to identify 6 carbon sugars?

A homopolysaccharide contains ______ type(s) of monomer(s).

What formula shows the stereo-chemistry of ring forms of monosaccharides?

Why are the glucose residues in cellulose indigestible by people?

What is a common Homopolysaccharide that are stored forms of Fuel?

True or false. The image show a carbohydrate that is an aldose

Most animals cannot use _________ as a fuel source, due to lack of enzyme to hydrolyze linkages

Name the following molecule.

Which math relationship describes the number of stereoisomers a chiral molecule can have?

Lectins bind carbohydrates with high _____ and _____.

When D-glucose forms a six member ring it is called

The picture shows the structure of Idose. How many stereoisomers does it have?

______ contains two types of glucose polymer, amylose and amylopectin.

What term refers to when two sugars differ each other by configuration of a single chiral C?

Reducing sugars must have a ___ group attached to the anomeric C. This is the reducing end.

Lactose is a reducing sugar while sucrose is not because

Linking together two monosaccharides happens between ____ and ____, this forms what molecule?

Which of the following sugars is NOT a reducing sugar?

Which projection is the best at showing the actual 3D structure of a monosaccharide?

Which of the following expressions calculates the number of isomers a compound (N= # chiral C)?

which pairs of the following monosccarides are epimers of each other?

the term given to two monosaccharides linked together by a glycosidic bond is ____.

1. Why is cellulose so hard for us to digest and starch is not.

Which polysaccharide is shown in the image?

Animals cannot use cellulose as an energy source because they lack the enzyme needed to

Saccharide comes from the greek word "sakcharon" meaning ___.

Saccharide comes from the greek "sakaron" which means what?

Which best describes the reaction for the formation of a glycosidic bond?

What experimental data suggested sugars were bonded in ring structures?

Starch is a polymer made from which monomer?

Which of the following is a not how monosaccharides are characterized by?

If the carbonyl group is at any other position in a ketone group the monosaccharide is an______

Name the following monosaccharide.

True or False: The image represents a carbohydrate with a D designation.

Which two are the main family groups of carbohydrates?

Which storage polysaccharide will typically have more frequent "branches" ?

Which of the following is not a characteristic of a monosaccharide?

In the Fischer projection, which side is the Hydroxyl Group on in the D configuration?