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BIO 101 EXAM 2 WVU SALIHU QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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BIO 101 EXAM 2 WVU SALIHU QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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BIO 101 EXAM 2 WVU SALIHUQUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
- ANSWER nucleic acids in all cells
pH scale - ANSWER Acidic: 0-6.9
Neutral: 7
Basic (alkaline): 7.1-14
acidity - ANSWER amount of hydrogen ions in a solution (called pH)
acids vs. bases ions - ANSWER acids- more H+
bases- more OH-
macromolecules - ANSWER sequence of simple molecules; all composed of C, H, and O
types of macromolecules - ANSWER carbohydrates, proteins, lipids, and nucleic acid
elements in DNA - ANSWER contains the same elements as other macromolecules, except it has N and P
monomers of complex carbs - ANSWER glucose, fructose, galactose
types of complex carbohydrates - ANSWER starch, cellulose, chitin,
function of complex carbs - ANSWER function to get energy to cell so if can carry out activities
cellulose - ANSWER carbohydrate that make plant cell walls
, chitin - ANSWER carbohydrate that makes exoskeleton of insects
carb loading - ANSWER excess carbs stored in muscles as glycogen and broken down when blood glucose
is low
peptide bond - ANSWER covalent bond formed between amino acids
protein functions - ANSWER 1. structural
2. protective- antibodies
3. regulatory- signaling proteins
4. contractile- actin/myosin
5. transport- hemoglobin
does most work in cell
amino acids - ANSWER building blocks of protein (monomers); 20 types; made of C, H, O, N and
sometimes S
polypeptides - ANSWER several amino acids joined together
dipeptide - ANSWER 2 amino acids joined together
primary structure - ANSWER sequence of amino acids in a peptide chain
secondary structure - ANSWER twists or folds formed by H-bonds between amino acids in peptide chain
tertiary structure - ANSWER 3D shape formed by multiple twists/bends in peptide chain
quaternary structure - ANSWER two or more polypeptide chains bonded together; functional form
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