BIO 256

Bio 256 Exam Questions with Complete Solutions (100% Pass) A steroid may be best described as a - Answer-lipid consisting of four carbon rings and various functional groups Saturated fatty acids have _____ double bonds - Answer-no Which is the part differing in the various amino acids? - Answer-side chain (-R) We have a much greater variety of proteins than polysaccharides in the body, mainly because - Answer-there are 20 different amino acid building blocks from which protein molecu...

Bio 256 Exam Questions with Complete Solutions (Definite Pass) Which is NOT part of an amino acid? - Answer-ribose After amino acids are assembled into a polypeptide chain, the chain often coils into a spring-like structure called the alpha helix. This coiling is due to ____. - Answer-hydrogen bonds Collagen is a ____ protein. - Answer-fibrous Which is NOT a function of proteins? - Answer-provide genetic code Which nitrogenous base is NOT found in DNA? - Answer-uracil RNA is ...

BIO 256 Exam Questions with Verified Answers The favored fuel of the liver is - Answer-fatty acids When cells move substances in vesicles into the extracellular space it is called - Answer-exocytosis Red blood cells placed in a hypotonic solution will exhibit - Answer-hemolysis Intracellular and extracellular fluids are separated by - Answer-plasma membrane What is the major cause of the underlying rapid aging disease, Progeria? - Answer-A single nucleotide change in the LMNA gene...

BIO 256 Exam Study Guide Questions with Correct Answers In an isotonic contraction, the muscle - Answer-changes in length and moves the "load" A sustained and frequent muscles stimulus brings about - Answer-tetanus Athletes sometimes complain of oxygen debt, a condition that results when insufficient oxygen is available to completely break down pyruvic acid. As a result the pyruvic acid is converted to - Answer-lactic acid Which serves as a quick source to replete ATP in exercising...

BIO 256 Final Assessment Exam Questions with Correct Answers Phenylketonuria (PKU) occurs when there is - Answer-two recessive alleles lack an enzyme that converts one of the basic amino acids that make up proteins (phenylalanine) into a by product essential for body functioning (tyrosine) Any oxidation reaction must be coupled to - Answer-a reduction reaction. Reactions releasing energy are usually called - Answer-exergonic The chemiosmotic theory describes how the electron-transpor...

Bio 256 Final Exam Questions with Complete Solutions The absorption of which ion is coupled to the absorption of glucose or amino acids? - Answer-Na+ Digestion of table sugar requires - Answer-sucrase Dietary fats are important because - Answer-they help the body absorb fat-soluble vitamins Select the correct statement about proteins - Answer-Proteins will be used by most cells for ATP synthesis if insufficient carbohydrates are ingested. Vitamins are organic compounds. They - An...

BIO 256 FINAL EXAM QUESTIONS WITH CORRECT ANSWERS glucose - Answer-The molecule central to all metabolism is buffer - Answer-A solution resisting changes in H+ concentration and tending to maintain a stable pH is called a ____ solution. positive, donated - Answer-Cations have a ____charge and are formed when they have ____ an electron to/from an anion. maintenance of body temperature - Answer-Water absorbs and releases large amounts of heat before changing temperature. This is import...

BIO 256 Practice Exam Questions with correct Answers (Definite Pass) In a negative feedback loop used to maintain homeostasis, which of the following terms is NOT likely to be used? - Answer-hypothesis Which is the fluid found between cells in your blood? - Answer-plasma Which is an organic molecule? - Answer-C6H12O6 The universal solvent of life is - Answer-water A salt such as NaCl becomes forms ______ when dissolved in water. - Answer-electrolytes Which releases H+ in water?...

Bio 256 Practice Exam Questions with Correct Answers Which is NOT a function of proteins? - Answer-Provides genetic code Which contains your genetic inheritance from your parents? - Answer-DNA RNA is made by ____, protein in made by ____ - Answer-transcription, translation The RNA type that moves through nuclear pores to direct synthesis of new protein molecules at the ribosomes in the cytoplasm, is - Answer-mRNA Transfer RNA anticodons pair complimentary to the ___ of mRNA. - Ans...

BIO 256 SI Review exam questions and Answers polar - Answer-Water is an especially good solvent for biological molecules because it is a. small and easily passes through membranes b. polar c. hydrophobic d. contains oxygen for ionic bonding nacl - Answer-Which would form an electrolytic solution when dissolved in water? a. NaCl b. Cu+ c. Ca++ d. HCO3+ bases - Answer-Which release OH- in water? a. bases b. aliphatic molecules c. acids d. nitrogenous salts stay the same -...