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IB104 - Lecture 7 - Molecules of life
IB104 - Lecture 7 - Molecules of life

... chains, e.g. 20 carbons, with a carboxyl or acid group (HOC=O) on the end (acid because they easily release a H+ ion in solution in water). Linoleic acid is one example. These are the monomeric building blocks that are put together in various ways. ...
Essential Fatty Acids (EFAs): Your Brain and Body
Essential Fatty Acids (EFAs): Your Brain and Body

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Test # 1

... D. The immediate precursor of urea is ornithine from which urea is cleaved by ornithase, an enzyme present almost exclusively in liver. E. N-acetyl glutamate is a positive effector of the enzyme catalyzing the synthesis of carbamoyl phosphate. ...
Extra Credit
Extra Credit

... 3) List and explain the potential health benefits of a vegan diet as compared to the typical American diet today. (Answer question #4 from the “Review Questions-Essay” section on p. 86.) Weight Lecture: 1) List the various genetic and environmental factors that may be involved in the etiology of obe ...
Oxidation Oxidation of aldoses forms acids as end products . CHO
Oxidation Oxidation of aldoses forms acids as end products . CHO

... This is the major carbohydrate reserve in animals . In most mammals deposits of glycogen are maintained especially in the liver and in the skeletal muscles .The structure of the glycogen is essentially the same as amylopectins , except that there is much more extensive branching . This gives an incr ...
Metabolism
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... aerobic respiration • Without oxygen, cells can use glycolysis alone to produce small amounts of ATP ...
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3.1 The Molecules of Life--From Structure to Function A. What Is An

Organic Macromolecules
Organic Macromolecules

... (2) The simplest form of carbohydrate; therefore, it cannot be broken down to simpler sugars by hydrolysis. ...
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... MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) All of the following statements concerning digestion are correct except A) The major physical processes in digestion are mixing, softening and grinding of food. B) Different foods are digested b ...
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... Preferential use of ketone bodies by tissues: • skeletal muscle, heart, liver use fatty acids in fasting or other conditions increasing F.A. Ketone bodies are used by: • Brain cells • Intestinal mucosa – transport fatty acids to blood • Adipocytes – store fatty acids in TAG • fetus – ketone bodies c ...
Macromolecules For Identification
Macromolecules For Identification

... composed of long chains of glucose. Starches can be found in potatoes, rice, wheat, corn, bananas, peas, beans, lentils, and other tubers, seeds and fruits of plants. Animals (and humans) store excess glucose in the form of glycogen in the liver and muscles. ...
Code Questions Answers 1. Write the reactions of glycolysis
Code Questions Answers 1. Write the reactions of glycolysis

... (01 Mark) Formation of ketone bodies. Inside the mitochondria HMG CoA is formed using 3 acetyl CoA as ………………………….. acetoacetate and free acetyl CoA. Acetoacetate is the parent ketone body. It is subsequently reduced by NADH dependent --------------------------------------------- This is known as ket ...
MITOCHONDRIA
MITOCHONDRIA

... 1953 along with Fritz Albert Lipmann who discovered the importance of coenzyme-A. An 8-step process with each step catalyzed by a specific enzyme. It is a cycle because the product of step 8 is the reactant in step 1 (oxaloacetate). ...
Ads by Google
Ads by Google

... Figure 1. The glycolytic pathway. a small amount of ATP, which is essential for some cells solely dependent on that pathway for the generation of energy. The glycolytic pathway is nearly ubiquitous, being found in every cell of virtually all living creatures. It is catalyzed by soluble enzymes loca ...
Energy Production - University of Massachusetts Amherst
Energy Production - University of Massachusetts Amherst

... breakdown of protein – mostly from lean muscle) provides energy for biologic work. • VISA: using protein as energy supplements the ATP/PCr, glycogen and fatty acids that provide the majoroty of the ATP. ...
The Molecules of Life
The Molecules of Life

... It is used by plant cells to store energy Potatoes and grains Glycogen is used by animal cells to store energy It is hydrolyzed to release glucose when we need energy Cellulose is the most abundant organic compound on Earth It makes up the walls of plant cells It cannot be chemically broken by any e ...
Biochemistry_of_Cells abridged
Biochemistry_of_Cells abridged

... • Starch is an example of a polysaccharide in plants Plant cells store starch for energy Potatoes and grains are major sources of starch in the human diet ...
The Molecules of Life
The Molecules of Life

... It is used by plant cells to store energy Potatoes and grains Glycogen is used by animal cells to store energy It is hydrolyzed to release glucose when we need energy Cellulose is the most abundant organic compound on Earth It makes up the walls of plant cells It cannot be chemically broken by any e ...
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... ncreased Glucagon secretion will promote which direction of this process ...
Sample exam questions Chapter 11 Carbohydrates
Sample exam questions Chapter 11 Carbohydrates

Test Your Knowledge – Chapter 3 Name
Test Your Knowledge – Chapter 3 Name

... 4. A major characteristic that all lipids have in common is a. they are all made of fatty acids and glycerol. b. they all contain nitrogen. c. none of them is very high in energy content. d. they are all acidic when mixed with water. e. they don’t dissolve well in water. 5. A flower’s color is deter ...
GLUCOSE METABOLISM - SumDU Repository: страница
GLUCOSE METABOLISM - SumDU Repository: страница

... destruction = absolute insulin deficiency;  type 2 DM - insulin resistance = relative insulin deficiency;  “other” specific types of DM (associated with identifiable clinical conditions or syndromes);  gestational DM - appears or is first detected during pregnancy.  type ...
about carbohydrates - Jamie`s Home Cooking Skills
about carbohydrates - Jamie`s Home Cooking Skills

... Wholegrains are a better source of nutrients, especially fibre. Because fibre is not absorbed by the body during digestion, it is good for digestive health. Scientific studies have also shown that people who eat more wholegrain foods tend to have a healthier heart and may be protected against corona ...
Ass3_ans - The University of Sydney
Ass3_ans - The University of Sydney

... of fatty acids from glucose (lipogenesis) can be written (for the 16-carbon fatty acid, palmitate) as: 9 glucose + 8 O2  2 palmitate + 22CO2 + 22 H2O Hint : At this stage you will find it very useful to draw out the scheme of lipogenesis from glucose (eg as in the final slide for Lecture 12) to ans ...
Ass3 - The University of Sydney
Ass3 - The University of Sydney

... synthesis of fatty acids from glucose (lipogenesis) can be written (for the 16carbon fatty acid, palmitate) as: 9 glucose + 8 O2  2 palmitate + 22CO2 + 22 H2O Hint : At this stage you will find it very useful to draw out the scheme of lipogenesis from glucose (eg as in the final slide for Lecture 1 ...
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Ketosis



Ketosis /kɨˈtoʊsɨs/ is a metabolic state where most of the body's energy supply comes from ketone bodies in the blood, in contrast to a state of glycolysis where blood glucose provides most of the energy. It is characterised by serum concentrations of ketone bodies over 0.5 millimolar, with low and stable levels of insulin and blood glucose. It is almost always generalized with hyperketonemia, that is, an elevated level of ketone bodies in the blood throughout the body. Ketone bodies are formed by ketogenesis when liver glycogen stores are depleted (or from metabolising medium-chain triglycerides). The main ketone bodies used for energy are acetoacetate and β-hydroxybutyrate, and the levels of ketone bodies are regulated mainly by insulin and glucagon. Most cells in the body can use both glucose and ketone bodies for fuel, and during ketosis, free fatty acids and glucose synthesis (gluconeogenesis) fuel the remainder.Longer-term ketosis may result from fasting or staying on a low-carbohydrate diet, and deliberately induced ketosis serves as a medical intervention for intractable epilepsy. In glycolysis, higher levels of insulin promote storage of body fat and block release of fat from adipose tissues, while in ketosis, fat reserves are readily released and consumed. For this reason, ketosis is sometimes referred to as the body's ""fat burning"" mode.
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