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WorksheetsIntro to Biochem
Total questions: 46
Worksheet time: 31mins
Who had a chemical experiment that simulated the condition that said to be present on the primitive Earth to observe the formation of biomolecules.
John Burdon Sanderson Haldane
Harold Urey
Stanley Milller
Alexander Oparin
Forms between atoms that share electrons rather than giving or receiving them.
Covalent Bonds
Polar Bonds
Ionic Bonds
Hydrogen Bonds
The study of chemical and physiochemical substances that occur within living organisms
(a)
Covalent Bonds that share a pair of electrons
(a)
Covalent bonds that shares two pairs of electrons and are more rigid than (a) bonds.
Formed when electrons are transferred completely from one atom to another and are not shared.
Ironic bonds
Ionic bonds
Polar Bonds
Hydrogen Bonds
A weak type of bond.
Is form due to attractive forces between nearby atoms or molecules.
(a)
Molecules that are formed when two atoms have a different electronegativity in between.
(a)
Molecules that are formed when atoms have similar electronegativity.
(a)
The formation of charged particles when a molecule formed by ionic bonds dissolve in a solvent
Ionization
Ironization
Chemical dissolving
Acidic rusting
Choose the correct answer:
Cations: negatively charged ions
Electrolytes: positive charged ions
Anions: Substances that release ions when dissolved in water
Cations: Positively charged ions
Electrolytes: Substances that release ions when dissolved in water
Anions: Negatively charged ions
Cations: Substances that release ions when dissolved in water
Anions: Negatively charged ions
Electrolytes: Positively charged ions
What is hydrophilic?
What is hydrophobic?
What is amphipathic?
Building blocks of lipids
fatty acids
glycosidic bonds
protein
amino acids
The monomer of proteins
nucleic acids
amino acids
carbohydrates
carbon
Bonds found in between of carbohydrates
glyosidic bonds
ester bonds
glycosidic bonds
hydrogen bonds
The only element that can form chains and rings with itself and it is the core foundation of organic chemistry.
Oxygen
Potassium
Helium
Carbon
Reactants bond together in a manner that produces an entirely new molecule
Chemical reaction
Synthesis reaction
Decomposition reaction
Exchange reaction
Bonds on a single reactant molecule are permanently broken down to release two or more product molecules
Synthesis reaction
Chemical reaction
Exchange reaction
Decomposition reaction
Reactants trade portions with each other and release products that are combinations of the two.
Chemical reaction
Exchange reaction
Synthesis reaction
Decomposition reaction
Are substances that increase the rate of reaction without being consumed
(a)
Are catalysts in cells
Bacteria
Fungi
Mitochondrion
Enzymes
A solution that occurs when a component releases excess hydrogen ions when dissolved in water
(a)
A solution where a component releases excess hydroxyl ions when dissolved in water
(a)
What do you call the Chemicals that do not contain both carbon and hydrogen?
(a)
Chemical compounds that contain carbon and hydrogen bonds.
(a)
The four main macromolecules of life
(a)
Saccharide is a...?
Sugar
Salt
Fat
Lipid
Combination of two monosaccharides
Oligosaccharides
Disaccharides
Monosaccharides
Polysaccharides
A simple sugar containing three to seven carbons
Polysaccharide
Oligossaccharide
Disaccharide
Monosaccharide
How many carbons does a hexose have?
(Number only)
(a)
How many carbons is a pentose composed of?
(number only)
(a)
-Are long, fibrous polymers
-One of the most common organic substances on Earth
-Digestible only by bacteria, fungi, and protozoa
Cellulose
Agar
Chitin
Peptidoglycan
-Is a polymer of galactose and sulfur-containing carbohydrates
-Natural component of seaweed
Chitin
Lipopolysaccharide
Peptidoglycan
Agar
-Found in the exoskeletons of certain fungi
-Polymer of glucosamine
Chitin
Agar
Peptidoglycan
Cellulose
-An example of polysaccharides that are linked to peptide fragments
-Main source of structural support to bacterial cell walls
Peptidoglycan
Chitin
Agar
Cellulose
Lipopolysaccharide
-Complex of lipid and polysaccharide found in the outer membrane of gram-negative bacteria
-Responsible for symptoms of fever and shock
Lipipolysaccharide
Lipopolysaccharide
Cellulose
Peptidoglycan
-Composed of polysaccharides bound in various ways to proteins
-Functions in attachment to other cells or as a site to receptors
Glucose polymers
Glycogen
Glycocalyx
G
-Storage molecules in cells
-Must be broken down by appropriate enzymes for use by the cell
-Is breakdown or digest by process called hydrolysis
Glucose polymers, starch, and glycogen
Cellulose, Lipids, Agars
Oligosaccharides, Glycocalyx, Chitin
-Substances that are not soluble in polar solvents such as water but are soluble in non polar solvents
-Long or complex hydrocarbon chains
-Hydrophobic
Fats
Lipids
Phospholipids
Waxes
-Fats and oils
-Composed of a single molecule of glycerol bound to three fatty acids
-Storage lipids
Triglycerides
Glycerol
Phospholipids
Waxes
3-carbon alcohol with three OH groups that serves as binding sites
Glycerol
Triglycerides
Fatty acids
Phospholipids
Long chain of hydrocarbons with a carboxyl group at the end
Fatty acids
Glycerol
Lipids
Select the correct answers
Saturated fatty acids: all carbons in the fatty acid chain are single-bonded to two other carbons and two hydrogens
Saturated fatty acid: A fatty acid in which at least a single bond exists between carbon atoms.
Unsaturated fatty acids: all carbons in the fatty acid chain are single-bonded to two other carbons and two hydrogens
Unsaturated fatty acid: A fatty acid in which at least one double bond exists between carbon atoms.
Energy rich molecules
ATP
Adenosine Triphosphate
ADP
Adenosine
Diphosphate
Mitochondria
Polar molecules
