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BIO 181 NAU- Exam 1 Questions with 100% correct Answers
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BIO 181 NAU- Exam 1 Questions with 100%correct Answers
Enzymes - ✔️✔️Chemicals that change the rate of a chemical reaction without being changed in
the process
Major types of proteins - ✔️✔️Structural proteins, storage proteins, contractile proteins,
transport proteins, enzymes
How many kinds of amino acids? - ✔️✔️20
Each amino acid consists of... - ✔️✔️A central carbon atom bonded to four covalent partner.
Structure of an amino acid - ✔️✔️
Proteins as polymers - ✔️✔️Cells link amino acids together by dehydration reactions. They form
peptide bonds and create long chains of amino acids called polypeptides.
Polypeptides - ✔️✔️Long chains of amino acids
Carboxyl group - ✔️✔️
Amino group - ✔️✔️
Structures of proteins - ✔️✔️Primary, secondary, tertiary, and quaternary
Primary structure - ✔️✔️The specific sequence of amino acids in a protein
, Secondary structure - ✔️✔️Protein folding-- a helices and B pleated sheets.
Tertiary structure - ✔️✔️Folding gives protein a complex 3D shape. This is the final level of
structure for a single polypeptide chain
Quaternary structure - ✔️✔️Made up of two or more polypeptides. The individual polypeptide
chains are protein subunits. Protein can be be formed from several copies of the same
polypeptide or multi meric
Protein is folded correctly = - ✔️✔️Can do the job
An example of a slight change in primary structure of a protein - ✔️✔️Sickle Cell anemia
Cell Theory - ✔️✔️All living organisms are composed of one or more cells, cells are the smallest
units of life, new cells come only from pre-existing cells by cell division
Single-celled - ✔️✔️Most bacteria
Multi celled - ✔️✔️such as plants, animals, and most fungi's
Prokaryotic cells - ✔️✔️bacteria and archaea
Eukaryotic cells - ✔️✔️protists, plants, fungi, and animals
Prokaryotic cell structure - ✔️✔️
Eukaryotic cell structure - ✔️✔️
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