CH4 Prokaryotic Cells No nucleus Plasma membrane Selective permeability lets molecules pass. Enzymes for ATP production. Photosynthetic pigment on folding (on chromatophores or thylakoids). Leakage occurs if damaged by alcohols‚ ammonium‚ and polymyxin antibiotics. Phospholipid bilayer‚ peripheral proteins‚ integral protein‚ transmembrane protein‚ sterols‚ glycocalyx Movement across Membranes Simple diffusion: Movement of solute from high concentration to low Facilitative diffusion: Solute
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in the body and explain (M1) the physiology of three named body system in relation to energy metabolism. Introduction I will try to describe the role of energy in the body and explain the physiology of three names body system in relation to energy metabolism. I will try explain where energy comes from‚ how the body uses energy‚ how many calories do we need‚ what is metabolism/catabolism and anabolism and also I will try explain cellular respiration aerobic/anaerobic is. Most of the processes
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Describe Living Things 1. Organization - the complex hierarchical structuring of the body. 2. Metabolism - the sum of all chemical reactions in the body. Metabolism is subsumed into two interrelated processes‚ anabolism and catabolism. a. Anabolism - biochemical joining of small molecules to make larger ones. b. Catabolism - biochemical break down of large molecules into smaller ones. 3. Growth - the enlargement in the size
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Energy Metabolism Respiration and the Respiratory System- The respiratory system is in charge of getting the oxygen needed for respiration to the blood flow where it is passed by the blood cells around the body to reach each living cell. The lungs have a huge blood supply and a huge surface area so they are very effective at getting oxygen out of the air. They are also in charge of getting rid of the carbon dioxide excess and some of the excess water as water vapour. It is the lungs job to
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all chemical processes that occur in the body. D) auscultation E) palpation 6. Listthebasicprocessesoflife. B) pulse rate. C) arthritis. D) fluid in the 7. This is the condition of equilibrium (balance) in the body’s internal environment. B) metabolism C) homeostasis D) autopsy E) differentiation 8. The two organ systems that regulate and maintain homeostasis are the A) cardiovascular and integumentary systems. B) nervous and endocrine systems. C) cardiovascular and respiratory systems. D) respiratory
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containing the group – CHO 16. CO2 fixation - conversion of inorganic carbon (carbon dioxide) to organic compounds by living organisms 17. Glycolysis – the energy yielding breakdown (fermentation) of glucose to pyruvic or lactic acid 18. Metabolism – a general term for the totality of chemical and physical processes occurring in a cell 19. Kreb’s cycle - the sequence of reactions by which most living cells generate energy during the process of aerobic respiration. 20. Nitrogen fixation
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Review Questions Exam 2 Although I try to cover all materials thoroughly in these questions‚ anything covered in lecture may appear on the exam. Membrane Transport 1. Describe the cell permeability and membrane transport. What can enter/exit the cell on its own? What requires assistance? Why? 2. Describe membrane potential. What is it? How is it established? How does it influence the transport of charged molecules? What are the components of the electrochemical gradient?
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importance in the survival of neurons‚ which are cells in the brain‚ that make part of the Central Nervous System (CNS). Perpetual oxidative stress and damage to the Mitochondrial DNA (mtDNA)‚ throughout aging process can causes deficiency to the metabolism energy‚ and ion exchange homeostasis‚ which result in degeneration of neurons. This mitochondrial abnormality is constantly seen in the
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The Great Metabolic Race Organisms are constantly undergoing various chemical reactions and pathways that enable for them to maintain life. These pathways are part of metabolism‚ involving catabolism (break down of organic nutrients for extraction of useful) and anabolism (energy dependent conversion of small precursor molecules in complex molecules); some of which are energy coupled to provide energy efficiency. This intermediate coupling is due to the “energy currency” within the body‚ known as
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Biology HL Portfolio The Cell and Cell Theory [pic] The cell The word cell comes from the Latin word “cellula”‚ which means a small room. The cell is the smallest unit of a living organism‚ also known as “the building block of life”. Every living organism is consisted of a cell. There are bacteria (unicellular organisms)‚ and multicellular organisms. There are different types of cells‚ prokaryotic and eukaryotic cells. All cells come from preexisting cells. “Every cell is self-maintaining;
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