Grade Master

Biochemistry - Folic Acid and B12-Questions and Answers Graded A+ What are dietary sources of Vitamin B12? - ANSWER-Meats Shellfish Poultry Eggs Dairy products Which two reactions require Vitamin B12? - ANSWER-Homocysteine -> Methoinine (homocysteine N-methyltransferase/methionine synthase) Isomerization of methyl malonyl CoA (methylmalonyl-CoA mutase) What are the two reactions that require S-Adenosylmethionine (SAM)? - ANSWER-Norepinephrine -> Epinephrine Homocysteine -...

Thermodynamics Exam 1-Questions and Answers Graded A+

Thermodynamics (Chapter 12)-Questions and Answers Graded A+ Thermodynamics - ANSWER-The study of energy and its transformation from one form to another. Thermochemistry - ANSWER-The study of the relation between chemical reactions and changes in energy. -The energy associated with chemical reactions. -Thermochemical equation: describes a chemical rxn. (ex: 2H2 + O2 -> 2H2O Thermochemical Equilibrium - ANSWER-A condition in which temperature is uniform throughout a material. -Tempe...

Thermodynamics Exam 1-Questions and Answers Graded A+ Thermodynamics - ANSWER-The study of motion of heat and its effect on surroundings System - ANSWER-Something of interest to our study Surrounding - ANSWER-Everything external to the system Boundary - ANSWER-Separates the system from its surroundings Closed System - ANSWER--mass is constant -could have heat or work interactions -closed to mass flow Isolated System - ANSWER-(special case of closed system) -Does not interact...

Respiratory System Exam Study set-Questions and Answers Graded A+

Respiratory System Exam-Questions and Answers Graded A+ What is the respiration rate, in breaths per minute? Note that he has 5 breaths across 15 seconds. - ANSWER-20 * What do you think happens to the levels of CO2 in exhaled air as breathing rate increases? - ANSWER-They decrease * During normal ventilation, exhaled air has a CO2 concentration of 35 mmHg. What would you predict the value of the first exhalation would be after a prolonged breath hold? - ANSWER-Increased What did y...

Respiratory System Exam Study set-Questions and Answers Graded A+ Define respiration - ANSWER-gas exchange between the blood and cells Tidal volume is the volume of air inspired and expired during one ______________ - ANSWER-breath Define phlegm - ANSWER-thick mucus secreted by the respiratory lining External respiration takes place - ANSWER-in the lungs What forms the floor of the nose? - ANSWER-hard palate What happens to increased amounts of mucous produced in the trachea? - A...

Biology- Role of digestive enzymes in the human body-Questions and Answers Graded A+

Anatomy Test 1 Enzymes-Questions and Answers Graded A+ enzymes are - ANSWER-proteins all enzymes are ____ _____ (runs chemical reactions) - ANSWER-biological catalysts properties of a biological catalyst - ANSWER-1. increases the rate of the reaction without the addition of chemicals or a change in temp 2. the enzyme is not changed at the end of the reaction 3. does not change the final product or nature of the reaction addition of the enzyme will not give ____ products - ANSWER-d...

Biology- Role of digestive enzymes in the human body-Questions and Answers Graded A+ What is amylase? - ANSWER-Amylase is an enzyme that catalyses the breakdown of starch into sugar what is pepsin? - ANSWER-an enzyme that breaks down proteins what is trypsin? - ANSWER-protein digesting enzyme what is maltase? - ANSWER-Enzyme which converts the remaining sugars into glucose What is lipase? - ANSWER-an enzyme that breaks down lipids Where does amylase come from? - ANSWER-salivary...