Biochemistry

How much water do cells and organisms contain? 70%-90% Cellular reactions occur in what? aqueous milieu: form of water 00:40 01:10 How many electron pairs surround an oxygen atom in water? 4 electrons What is a net dipole moment? polar molecules and interactions What are the four non-covalent bond interactions? Ionic Dipole Van der Waals Hydrophobic Effect What is true about hydrophobic and hydrophilic molecules? Hydrophobic= Non-polar, No Lone Pairs ...

how do amino acids differ from one another? shape, charge, size, hydrogen-bonding character, chemical reactivity, and hydrophobic character collagen is a major protein in connective tissue of vertebrates. it consists of three left-handed helical chains coiled around each other in a right-handed super-coil. what vitamin is required for collagen formation? the vitamin is required for what Vitamin C and hydroxylation reaction immunoglobin is critical for bodys defense. will addition...

In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. nucleoid A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: A) DNA. B) photosynthetic capability. C) plasma membranes. D) ribosomes. E) the nucleus the nucleus 00:34 01:10 In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuclear envelope. C) nucleolus. D) nuc...

BIOCHEMISTRY QUIZ AND EXTRA QUESTIONS, UNIT 3. Which property of enzymes is illustrated in the final step of the enzymatic cycle? ANSWERS: Enzymes are reusable. In the enzyme cycle, which step immediately follows induced fit? ANSWERS: Formation of the enzyme-product complex Which type of inhibition occurs when a particular drug binds to the active site of an enzyme? ANSWERS: Competitive Salivary amylase, an enzyme responsible for partial digestion of carbohydrates, has optimu...

BIOCHEMISTRY C785 WGU - Module 3 Hb (hemoglobin) binds to CO (carbon monoxide) with a higher affinity than oxygen and stabilizes the R (relaxed) state ANSWERS: True When hemoglobin changes from the T to the R, it has a high affinity for oxygen ANSWERS: True When hemoglobin changes from the R to T, it has a low affinity for oxygen ANSWERS: True Cooperatively refers to ANSWERS: structural changes that increases the affinity for oxygen in hemoglobin When the oxygen concen...

Vector mechanics apply to which of the following? displacement velocity speed both A and B E. all of the above ANSWER both A and B .If velocity is constant, then acceleration is what? zero constant, but not necessarily zero changing D. need more information ANSWER zero The Greek letter (delta) is used to represent what? time displacement distance D. change in ANSWER change in Linear distance traveled per unit of time describes what? displacement velocity accele...

BIOCHEMISTRY REVIEW MODULE 1 2021 SOLUTIONS

Biochemistry Lab Report 1 Spectrophotometry, Quantification of Protein Concentration, Chromatography, Gel Electrophoresis, Gel Electrophoresis of Proteins Abstract Over the course of three lab periods, many experiments were performed in order to set up a stable base for this class of Biochemistry lab. To do this, we made many measurements to create many standard graphs so that we have them in our arsenal for future experiments. In order to perform detailed studies on the structure and fun...

1) What is the basic structure of an amino acid? List the 4 groups and describe what they look like. + alpha carbon ©, Amino group ( NH2 or NH3, Carbonyl group( cooh) and variance or side chain(R group) 2) How do you identify the 3 different types of side chains: non-polar/hydrophobic, polar, and charged? Non Polar:::: ( Hydrophobic)- water hating -Ch3 or C and H ( side) special case: Tryptophan is a hydrophobic nonpolar even tho is has a single N Polar:::: ( Hydrophilic): OH, NH, ( cen...

Final Bio chem 1. The polymerase chain reaction is a tool used to study protein structure. True False False Feedback PCR is a tool used to amplify a specific segment of DNA. What color is the primer in the following diagram? Red Purple Blue Red Feedback Recall from the section on DNA replication that DNA polymerase needs a primer to begin DNA synthesis. This requirement means the primers will direct the DNA polymerase to only synthesize complementary strands of the target DNA. (Not...