ilmkidunya.com has brought to you Lecture of Usama Qamar on "9th Class Biology Chapter 1 Introduction to Biology. Topic 1 Introduction Chapter 1". In this video following sub topics have been taught: - Division of Biology - Main Branches of Biology For more videos of Usama Qamar visit https://www.ilmkidunya.com/study This lecture is specially recorded for students of 9th class, 9th class from all Punjab Boards and is based on the current curriculum of study for Biology book. All these lectures are conducted in Urdu/English medium to facilitate Pakistani students.
Chapter 5 Cell Respiration and Metabolism To place this chapter in perspective, we must realize that all living cells have a continuous need for energy (ATP) to perform routine functions. These include such vital functions as transporting materials across cell membranes and generating membrane potentials (chapter 6); transmitting these electrical impulses (chapters 7-10); synthesizing and secreting hormones (chapter 11); and contracting muscles (chapters 12-14). Ultimately, the energy for these cellular activities comes from the fuel foods we consume, digest, and absorb (digestion: chapter 17); deliver to our cells (circulation: chapters 13 and 14); and combust or metabolize along enzymeâ€‘catalyzed pathways. As we learned in the previous chapter, much of this chemical energy is lost as heat energy (measured in calories) as the residual energy is transferred to the synthesis of ATP. The ATP then serves to drive or â€œenergizeâ€ cellular functions. We are prepared now to ask questions about the processes that comprise cell respiration and to analyze the combustion reactions that occur continuously in all living cells. In this way, food consumption provides the high-energ
Saturated fats, unsaturated fats, and trans fats Watch the next lesson: https://www.khanacademy.org/science/b... Missed the previous lesson? https://www.khanacademy.org/science/b... Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or first-year college biology course. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLear
Can Fats Be Turned Into Glycogen For Muscle?
The amount of fat in the average diet and the amount of stored fat in the average body make the notion of converting that fat into usable energy appealing. Glycogen, a form of energy stored in muscles for quick use, is what the body draws on first to perform movements, and higher glycogen levels result in higher usable energy. It is not possible for fats to be converted directly into glycogen because they are not made up glucose, but it is possible for fats to be indirectly broken down into glucose, which can be used to create glycogen. Relationship Between Fats and Glycogen Fats are a nutrient found in food and a compound used for long-term energy storage in the body, while glycogen is a chain of glucose molecules created by the body from glucose for short-term energy storage and utilization. Dietary fats are used for a number of functions in the body, including maintaining cell membranes, but they are not used primarily as a source of fast energy. Instead, for energy the body relies mostly on carbohydrates, which are converted into glucose that is then used to form glycogen. Turning Fats Into Glucose Excess glucose in the body is converted into stored fat under certain conditions
Video by Ulf Smith, MD, PhD, Professor of Internal Medicine, The Lundberg Laboratory for Diabetes Research, Center of Excellence for Cardiovascular and Metabolic Research, Sahlgrenska Academy, Gteborg University, Gteborg, Sweden Produced by the International Chair on Cardiometabolic Risk
Ann L. Albright and Judith S. Stern Department of Nutrition and Internal Medicine University of California at Davis Davis, CA USA Morphology and Development of Adipose TissueAdipose-Tissue MetabolismAdipose Tissue DistributionDefinition and Causes of ObesityFurther Reading Albright, A.L. and Stern, J.S. (1998). Adipose tissue. In: Encyclopedia of Sports Medicine and Science, T.D.Fahey (Editor). Internet Society for Sport Science: 30 May 1998. Adipose tissue is specialized connective tissue that functions as the major storage site for fat in the form of triglycerides. Adipose tissue is found in mammals in two different forms: white adipose tissue and brown adipose tissue. The presence, amount, and distribution of each varies depending upon the species. Most adipose tissue is white, the focus of this review. White adipose tissue serves three functions: heat insulation, mechanical cushion, and most importantly, a source of energy. Subcutaneous adipose tissue, found directly below the skin, is an especially important heat insulator in the body, because it conducts heat only one third as readily as other tissues. The degree of insulation is dependent upon the thickness of this fat layer
Although the hormone insulin is most often associated with glucose, what insulin does is help move substances from your bloodstream into your cells -- and that includes triglycerides. Elevated triglycerides often go hand-in-hand with high blood sugar because insulin is needed to remove both from your bloodstream. High triglycerides can be one of the first symptoms of undiagnosed diabetes or insulin resistance, also known as pre-diabetes. Video of ...
Overview Carbohydrates, fats and proteins are macronutrients. We require them in relatively large amounts for normal function and good health. These are also energy-yielding nutrients, meaning these nutrients provide calories. On This Page: What are Carbohydrates? Carbohydrates Understanding Carbohydrates Every few years, carbohydrates are vilified as public enemy number one and are accused of being the root of obesity, diabetes, heart disease an ...
Not to be confused with Glycogenesis or Glyceroneogenesis. Simplified Gluconeogenesis Pathway Gluconeogenesis (GNG) is a metabolic pathway that results in the generation of glucose from certain non-carbohydrate carbon substrates. From breakdown of proteins, these substrates include glucogenic amino acids (although not ketogenic amino acids); from breakdown of lipids (such as triglycerides), they include glycerol (although not fatty acids); and fr ...
Chapter 5 Cell Respiration and Metabolism To place this chapter in perspective, we must realize that all living cells have a continuous need for energy (ATP) to perform routine functions. These include such vital functions as transporting materials across cell membranes and generating membrane potentials (chapter 6); transmitting these electrical impulses (chapters 7-10); synthesizing and secreting hormones (chapter 11); and contracting muscles ( ...
Refers to molecules containing a carbon skeleton bonded to hydrogen atoms Refers to carbon dioxide and all molecules without carbon The simplest organic compounds: organic molecules containing only carbon and hydrogen A small organic molecule, several of which may be bonded together to form a chain called a polymer a molecule of three or more subunits called monomers, which may be identical (glucose monomers of starch) or different (amino acids ...
Acute exercise increases triglyceride synthesis in skeletal muscle and prevents fatty acidinduced insulin resistance J Clin Invest. 2007; 117(6) :1690-1698. . Fatty acid oversupply is a key mediator of skeletal muscle insulin resistance in obesity, primarily via accumulation of fatty acid metabolites and activation of proinflammatory pathways. Herein, we demonstrate that fatty acidinduced insulin resistance in humans is completely prevented the ...