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Bio 161 Exam 1 Questions And Answers With Verified Solutions Already Passed!!!
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Bio 161 Exam 1 Questions And Answers With Verified Solutions Already Passed!!!
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Bio 161 Exam 1 Questions And AnswersWith Verified Solutions Already
Passed!!!
Cell
The cell is the smallest unit capable of carrying out life processes.
Matter
Matter is anything that takes up space and has mass.
Element
An element is a building block of matter and cannot be broken down by
chemical means.
Atom
An atom is the smallest unit of an element that retains the chemical and
physical properties of the element.
C, O, H, N
The four main elements found in the body are:
o Carbon (C)
o Oxygen (O)
o Hydrogen (H)
o Nitrogen (N)
Covalent Bond
A covalent bond is the strongest type of chemical bond where atoms share
electrons.
Organic Molecules
Carbohydrates, lipids, proteins, and nucleic acids are the four categories
of organic molecules.
Dehydration Reaction
A dehydration reaction is a type of synthesis reaction that brings two
monomers together, releasing water as a product.
Hydrolysis Reaction
A hydrolysis reaction is the breakdown of molecules when water is
added.
Carbohydrate
Carbohydrates function for quick and short-term energy storage.
Monosaccharide
A monosaccharide is a single monomer that forms a one-ring structure.
Nutrient
A nutrient is a food component required to perform a physiological
function.
, Examples of Monosaccharides
Glucose, fructose, and galactose are examples of monosaccharides.
Disaccharides
Disaccharides are two monosaccharides covalently bonded to each other.
Examples of Disaccharides
Maltose, sucrose, and lactose are examples of disaccharides.
Polysaccharides
Polysaccharides are long chains of monosaccharides that store energy and
provide structure.
Examples of Polysaccharides
Starch, glycogen, and cellulose are examples of polysaccharides.
Lipids
Lipids are macromolecules that store energy, form membranes, and
insulate.
Fats
Fats are of animal origin, are solid at room temperature, function in long-
term energy storage, and offer cushioning.
Oils
Oils are of plant origin, are liquid at room temperature.
Emulsifiers
Emulsifiers are substances that allow fats to mix with water, surrounding
the lipid with nonpolar tails. They are used in laundry and the digestive
system.
Phospholipids
Phospholipids have a phosphate head and a lipid tail. They are the
primary components of cell membranes.
steroids - ANSWER✔✔ lipids with 4-5 fused carbon rings, component of
membranes
proteins - ANSWER✔✔ macromolecules with amino acid subunits, have many
functions including enzymes, hair and nails, transport, defense, hormones, and
movement
20 - ANSWER✔✔ number of amino acids
peptide bond - ANSWER✔✔ covalent bond between 2 amino acids
polypeptide - ANSWER✔✔ 3 or more amino acids linked together
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