Nutrient chemistry Smartbook
Carbohydrates have a ratio of hydrogen to oxygen close to _____.
2:1
A monosaccharide will have about how many carbon atoms?
6
Select all that apply Indicate all choices that describe glycogen.
An energy storage molecule in animals A long chain of glucose molecules Stored in the liver
There are 3 classes of carbohydrates: monosaccharides, disaccharides and polysaccharides. Glucose is an example of a ____________, glycogen is an example of a _________________ and lactose is an example of a disaccharide.
Blank 1: monosaccharide Blank 2: polysaccharide
The building blocks of carbohydrates are _______________, the building blocks of proteins are amino ________________ and the building blocks of nucleic acids are ________________.
Blank 1: monosaccharides Blank 2: acids Blank 3: nucleotides
Select all that apply Identify the building blocks of triglycerides.
Fatty acids, and Glycerol
Select all that apply Identify the roles of carbohydrates in the body.
Forms cell membrane structure and Serves as an energy source
In addition to being the principle molecule that is broken down to provide energy for the body, carbohydrates also do which of the following?
Provide bulk in the feces
monosaccharide
This figure of an organic molecule represents a(n) ______.
triglyceride
This figure shows a type of lipid molecule called a(n)_____________ molecule.
amino or glycine
This illustration of an organic molecule is a(n) acid.
disaccharide
This picture of an organic molecule represents a(n) ______ molecule.
The region of a protein that binds a ligand, such as the substrate-binding site of an enzyme or the hormone-binding site of a receptor is known as the ______________ site.
active
The small organic molecules that are the monomers used to form proteins are ______.
amino acids
When two simple sugars are covalently linked together, a(n) ______ is formed.
disaccharide
A substance that facilitates chemical reactions in the body by reducing the energy of activation required to allow the reaction to occur is a(n) ______.
enzyme
Maltase is probably a(n) _____ because of the -ase on the end of its name.
enzyme
A major type of lipid molecule that can store energy, insulate, and act to cushion the body describes a(n) ______.
fat
The building blocks of triglycerides that are long chains of carbon atoms with a carboxyl group attached to one end are _____.
fatty acids
An energy-storage glucose polymer stored by the liver and skeletal muscle cells is _________________.
glycogen
Fatty acids are ______.
long chains of carbon atoms with a carboxyl group attached to one end
The covalent bond that connects amino acids to one another is known as a(n) ______________ bond.
peptide
Two amino acids are being held together. What type of bond connects them?
peptide
Amino acids are the subunits of larger molecules called ___________.
proteins, protein, peptides, polypeptides, or peptide
The level of protein structure associated with the relationships between subunits is the _____ level.
quaternary
An example of a disaccharide is ______.
sucrose
A lipid composed of three fatty acids joined to a glycerol is a(n) ______.
triglyceride
Most fats in the body are ______.
triglycerides
What is the active site of an enzyme?
where it binds its substrate
