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?
Premium Adenosine triphosphate Cellular respiration Photosynthesis
mitochondrion becomes even more complex when divided into its two internal compartments‚ the intermembrane space and the mitochondrial matrix. In the mitochondria‚ the biochemical reaction‚ respiration takes place. The balanced formula for respiration is C6H12O6 + 6 H2O à 6 H2O + 6 O2 + E‚ the catalyst being enzymes. Respiration is when oxygen is consumed as a reactant along with the organic fuel. In order for the process take place‚ food must be available‚ along with oxygen. The first two stages occur due
Free Photosynthesis Adenosine triphosphate Oxygen
Define the standard reduction potential. Why aerobic grow generates the highest amount of energy (ATP). How this value plays a role in organization of electron transport system. Compare Eo of aerobic and anaerobic respiration 3. Describe the flow of electron in fermentation and respiration. What happened to the electron in each of the above processes 4. Describe how enzymes are involved in chemical reactions. (activation energy‚ lowering Eo 5. Define apoenzyme andcofactor. What is the
Premium DNA Cellular respiration Adenosine triphosphate
glycogen breaks down into ATP as well as lactic acid. This system supplies ATP slower than the Phosphocreatine system. The body cannot produce enough ATP to maintain this energy source for longer than around 2 minutes. There is a limit to anaerobic respiration because of the lactic acid. The buildup of lactic acid will end up stopping the movement of the muscles are it beings to become painful. The anaerobic energy system is commonly associated with the 400m sprint‚ 100m swim‚ most teams sports and
Premium Metabolism Adenosine triphosphate Cellular respiration
carried out by living organisms. This process is carried out in two different ways: anabolic and catabolic. The catabolic breaks down large chemical compounds while anabolic synthesizes components to create larger molecules. Respiration provides energy for these reactions‚ and respiration needs oxygen to occur. Thus‚ calculating the change in oxygen can determine metabolic rate (University‚ 59). In this experiment‚ we will observe and analyze the oxygen consumption of Carassius auratus‚ also known as goldfish
Premium Oxygen Metabolism Carbon dioxide
CE BIO 1994 1. (a) (i) The formation of red precipitate indicates the presence of reducing sugar (glucose) in the water ------------------------------------------------------------------- 1 This shows that the dialysis tubing is permeable to glucose / permits the diffusion of glucose into the external solution ------------------------------------------ 1 (ii) (1) Increased amount of precipitates in set-up a indicates the presence of more reducing sugar -------------------------------------------------------------
Premium Carbon dioxide Cell Enzyme
known as the tricarboxylic acid cycle (TCA cycle)‚ the Krebs cycle‚ or the Szent-Györgyi-Krebs cycle‚ [1][2] — is a series of enzyme-catalysed chemical reactions‚ which is of central importance in all living cells that use oxygen as part of cellular respiration. In eukaryotic cells‚ the citric acid cycle occurs in the matrix of the mitochondrion. The components and reactions of the citric acid cycle were established by seminal work from Albert Szent-Györgyi and Hans Krebs. In aerobic organisms‚ the
Premium Citric acid cycle Cellular respiration Adenosine triphosphate
ATP and its Role in Living Organisms An exemplary biology essay ATP (adenosine triphosphate) is vital to living organisms. It acts as a short-term store of energy in a cell‚ carrying it from where it is synthesised (e.g. the mitochondria) to where it is needed for biological processes. It is well suited to this job for the following reasons: it is small and soluble (and so can be easily transported around a cell); it is easily broken down to release energy; it can transfer energy to other molecules;
Premium Adenosine triphosphate Cellular respiration Metabolism
3-carbon molecules NO O2 - Fermentation 1. Lactic Acid – your muscles ache because of the accumulation of lactic acid. 2. Alcohol Fermentation- ethanol is fancy word for alcohol. Alcohol fermentation is alcohol + CO2 O2 Aerobic * Respiration * Mitochondria * Matrix – Krebs Cycle – C6 – gives you 2 more ATP * Innermembrane- ETS – 34 ATP Mitochondria is only involved in the presence of oxygen. * Must know pyruvate for the test. Glycolysis * Two processes
Premium Cellular respiration Metabolism Adenosine triphosphate
two products of the breakdown of glucose: 1. _________________ 2. _________________ If oxygen is not available‚ pyruvic acid is converted to __________ acid‚ which is the end product of _________________ respiration. 8. If oxygen is available‚ the process is known as ______________ respiration. Name two sources of oxygen: 1. _______________________ 2. _______________________ The aerobic pathway consists of glycolysis + ________________ + ___________________. The net result of one glucose molecule
Premium Adenosine triphosphate Cellular respiration Muscle