bicarbonate (NaHCO3). This Bicarbonate ion acts as a carbon source for photosynthesis. As photosynthesis continues, oxygen is then released into the inside of the leaf disk which changes its buoyancy, causing the disks to start to float. Since cellular respiration is taking place at the same time inside the disks, absorbing the oxygen created by photosynthesis, the rate of the disks rising is an indirect measurement of the net rate of photosynthesis. The overall
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Bio 100 EXAM 2 STUDY GUIDE CH 5 THE WORKING CELL 1. Properties of plasma membranes – fluid mosaic a. Lipids do what –Make up the phospholipid bilayer b. Proteins do what –embedded in lipid bilayer. Transports molecules across the membrane 2. Diffusion – movement down concentration gradient – Molecules move from HIGH concentration to LOW concentration until equilibrium is achieved 3. Passive transport/simple diffusion – diffusion across membrane. Needs no energy, energy
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Please do not plagiarize. Only use these study questions for study purposes, and to check your own work. Answers are NOT guaranteed to be correct. Biology 141, Spring 2012 Exam 1 Study Questions The questions on the first hour exam will be based on those given below. Questions on the exam will be in multiple choice form, but if you can answer the questions here, you will have no trouble with the exam. [Notes: 1. These questions are meant to provoke thought and study. Do not ask the instructors
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10 Section 3.3 – The light – independent reaction 11 Section 3.4 – Factors affecting photosynthesis 12 Section 4.1 – Glycolysis 13 Section 4.2 – Link reaction + Kreb cycle 14 Section 4.3 – Electron transport chain 15 Section 4.4 – Anaerobic respiration 16 Section 5.1 – Food chains and food webs 17 Section 5.2 – Energy transfer between trophic levels 18 Section 5.3 – Ecological pyramids 19 Section 5.4 – Agricultural ecosystems 20 Section 5.5 – Chemical and biological control of agricultural
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“Glycolysis.” Khan Academy, www.khanacademy.org/science/biology/cellular-respiration-and-fermentation/glycolysis/a/glycolysis. deFigueiredo, Eduardo Barreto, et al. "Greenhouse Gas Emission Associated with Sugar Production in Southern Brazil." Carbon Balance & Management, vol. 5, Jan. 2010, pp. 3-9. EBSCOhost, doi:10.1186/1750-0680-5-3. Tu, Benjamin P., et al. "Logic of the Yeast Metabolic Cycle: Temporal Compartmentalization of Cellular Processes." Science, vol. 310, no. 5751, 18 Nov. 2005, pp. 1152-1158
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molecules, dihydroxyacetone phosphate (DHAP) and glyceraldehyde. These products are then able to enter the glycolysis pathway to be converted to pyruvate, which is essential for the citric acid cycle and the production of adenosine triphosphate (ATP) for cellular energy. A2. Deficiency in Aldolase B A hereditary deficiency in aldolase B could be caused by mutations in the ALDOB gene. An aldolase B deficiency will prevent the breakdown of fructose past the point of the fructose 1-phosphate stage. This causes
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2.1 Glycocalyx are glycol-polymers that are found on the exterior surface of a cell and varies with each individual, this spatial arrangement of the glycocalyx on the extra-cellular surface which are exposed sugar groups helps the immune system to decide if a cell is foreign or not, as a result of their unique nature and structure. They act like finger prints recognition test for the cells. If a cell fails the finger print test, it is destroyed. This helps to prevent auto-immune attack and attack
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varying amounts (10 ml, 20 ml, and 30 ml) to measure fermentation rates by pressure, then 30 ml will ferment the fastest because there will be more yeast to undergo fermentation; producing more carbon dioxide. Analysis: There are two types of cellular respiration (CR), there is aerobic and anaerobic. Aerobic CR requires the cell to contain a mitochondrion and the presence of oxygen. Aerobic CR will produce around 38 molecules of ATP per glucose molecule. Anaerobic CR works without oxygen or a mitochondrion
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COMMENTARY Open Access Understanding the complex-I-ty of metformin action: limiting mitochondrial respiration to improve cancer therapy Alba Luengo1, Lucas B Sullivan1 and Matthew G Vander Heiden1,2* Abstract Metformin has been a first-line treatment for type II diabetes mellitus for decades and is the most widely prescribed antidiabetic drug. Retrospective studies have found that metformin treatment is associated with both reduced cancer diagnoses and cancer-related deaths. Despite the
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overwhelmed. http://www.rsc.org/Education/Teachers/Resources/cfb/basicchemistry.htm 3. To understand the energy metabolism in cells I looked at an article that describes the two types of cellular metabolism: the photosynthesis that takes place in plant cells and the aerobic respiration that takes place in animal cells. The article goes on to explain that the end result of both is to produce ATP. I
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