will occur. 3) Which of the following statements about carrier proteins is FALSE? 3) _______ A) They can become saturated if the maximum transport rate is exceeded. B) They are found integrated into the plasma membrane. C) They assist in simple diffusion. D) They might have to change shape slightly to accommodate a solute. 4) Osmotic pressure is measured in units of _______. 4) _______ A) mm Hg
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energy. This energy comes from glucose. Glucose is mainly obtained from food. When we eat‚ food enters the digestive system and is broken down into glucose. The three components from which glucose is made are carbohydrates‚ proteins‚ and fats. Carbohydrates convert 100% into glucose; protein converts 50-60%; and fat converts 10%. Once food is broken down into glucose‚ it can be absorbed in the blood and carried to the cells of the body. However‚ for glucose to enter the cells‚ insulin must
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* A reactant in an enzyme-catalyzed reaction is called a substrate. The area of the enzyme that binds to the substrate is called the active site - where the action takes place. * Cofactors and coenzymes are small molecules or ions that help enzymes to act. HSC Biology Notes – Hugh Phillips Maintaining a Balance 1.Most organisms are active in a limited temperature range: Identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their
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Insulin Synthesis The discovery of insulin was one of the greatest events in medical history. The existence of insulin is as necessary as that of glucose (the body’s basic unit of fuel). Both of them are related and required for life. In order for the glucose to be regulated‚ insulin circulates through blood vessels and bind with particular (insulin) receptors‚ promoting interactions essential for the wellbeing of the body’s internal mechanisms. Insulin is a hormone synthesized exclusively
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Case Study Unit 1: Addison’s Disease and Adrenal Crisis PHGY 230 McGraw Dr. Thomas Addison first discovered the disease known as Addison’s disease‚ in London‚ 1855. At that particular time‚ the tuberculosis infection was the most common cause of adrenal insufficiency. It wasn’t until the middle of the twentieth century that tuberculosis was no longer the leading cause. Due to the discovery of effective antibiotics and vaccines developed in this century‚ Addison’s disease is now more commonly
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Vertebrate Biology Essay Conversion Programme in the Natural Sciences Dr. Colin Stolkin & Professor P.B Gahan The Vertebrate Endocrine System in specific reference to their role in Human Menstruation‚ Ovarian and Uterine cycles Rio Summers April 2009 Word Count: 2693 The vertebrate endocrine system can be best explained as an internal body system collecting multiple organs and glands that produce and regulate hormone secretion into the bloodstream in order to control the many functions of the
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how an IV fluid is packaged and important information located on the label of the IV fluid KEY TERMS 5% Dextrose in water—A carbohydrate solution that uses glucose (sugar) as the solute dissolved in sterile water. Five percent dextrose in water is packed as an isotonic solution but becomes hypotonic once in the body because the glucose (solute) dissolved in sterile water is metabolized rapidly by the body’s cells. Colloid solutions—IV fluids containing large proteins and molecules that tend to
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you expect? If the amylase successfully digests the starch‚ I would expect a no color change occur as well as a presence of glucose in the intestine (Dialysis tubing). If the amylase only partly digests the starch‚ what would you expect to happen? If the amylase only partly digests the starch‚ I would expect to see a faint color change as well as a small presence of glucose inside the intestine. If the amylase fails to digest the starch‚ what results would you expect? If the amylase fails
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osmosis d. vesicular transport 4. Circle the correct term. In pinocytosis / phagocytosis‚ parts of the plasma membrane and cytoplasm expand and flow around a relatively large or solid material and engulf it. 5. Circle the correct term. In active / passive processes‚ the cell provides energy in the form of ATP to power the transport process. Exercise Overview The molecular composition of the plasma membrane allows it to be selective about what passes through it. It allows nutrients and appropriate
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Amiodarone inhibits Warfarin metabolism – enhanced anticoagulant effect Amiodarone and β Blockers Increased risk of bradycardia‚ AV block and myocardial depression Amiodarone and Lithium Risk of ventricular arrhythmias Amiodarone and Digoxin Plasma conc. of Digoxin increased by Amiodarone 2. DIGOXIN A cardiac glycoside – used in AF‚ tachycardias and heart failure. A positive inotrope – increases the force of myocardial contraction and reduces conductivity within the AV node. Desired serum
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