BioChem C785

Hydrophilic - correct answer Having an affinity for water. Hydrophobic - correct answer substances that are not soluble in water. Hydrophobic substances include large, uncharged particles like fats and oils solvent - correct answer A liquid substance capable of dissolving other substances Solute - correct answer A substance that is dissolved in a solution. Adhesive - correct answer Having the ability to stick to other surfaces. Cohesive - correct answer having the ability to stick togethe...

Which mRNA sequence results in a polypeptide that contains three amino acids? - correct answer 5' - CUU GAU ACU UAG - 3' Which RNA sequence would end in the following polypeptide? Phe-Thr-Val-Stop - correct answer 5' - UUC ACA GUA UAA - 3' What is the complementary sequence for the following DNA sequence? 5' - GCC ATC TCG AAT - 3' - correct answer 5' - ATT CGA GAT GGC - 3' Assuming 100% reaction efficiency, how many DNA copies are created after the completion of four complete PCR ...

What vitamin does not travel through the bloodstream in the form of a lipid micelle? - correct answer Vitamin C Which lipid has a 4-ring structure? - correct answer Sterol Which of the following situations is MOST likely to increase the rate of beta oxidation? - correct answer fasting A patient who is on a no-fat diet is at particular risk of deficiency in: - correct answer Vitamin A During starvation, triglycerides can help supply some of the body's glucose needs. Which breakdown produ...

carboxyl group - correct answer A -COOH group, found in organic acids. amino group - correct answer a chemical group consisting of a nitrogen atom bonded to two hydrogen atoms Where are the hydrophobic amino acids found in the protein? - correct answer found in the interior of the protein What kind of bond connects a positively charged group and a negatively charged group? - correct answer ionic bond What type of reaction forms a peptide bond? - correct answer dehydration synthesis What...

The LEP gene codes for an anorexigenic hormone. Interestingly, breastfeeding has been shown to alter methylation of the promoter of this gene, leading to increased LEP expression. What is likely happening in response to breastfeeding? - correct answer Breastfeeding decreases the methylation of the promoter of the LEP gene, increasing the spacing between nucleosomes. A patient with xeroderma pigmentosum is prone to developing multiple skin cancers starting in childhood. This occurs because ...

Hydrogen bond - correct answer Weak bond interaction Between two molecules amino group - correct answer Consists of hydorgen and nitrogen atoms (-NH3+) macromolecules - correct answer A giant molecule in a living organism formed by the joining of smaller molecules: a protein, carbohydrate, or nucleic acid. polymer - correct answer a long molecule consisting of many similar or identical building blocks linked by covalent bonds Amino acid - correct answer Amino group + Carboxylic acid + R gr...

Which level of protein structure is disrupted through the hydrolysis of peptide bonds? Quaternary Tertiary Primary Secondary - correct answer Primary The primary structure of a protein is the sequence of amino acids held together by peptide bonds. Peptide bonds are formed by dehydration reactions and disrupted by hydrolysis. A mutation in the beta-hemoglobin gene, which results in the replacement of the amino acid glutamate in position 6 with the amino acid valine, leads to the develo...

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