General Biology Reviewer Quarter 2 PDF

Summary

This document is a general biology reviewer covering topics like photosynthesis, cellular respiration, and the functions of ATP. It includes detailed descriptions of processes involving energy production within the cell.

Full Transcript

GENERAL BIOLOGY REVIEWER will otherwise be destructive to Quarter 2 Chlorophyll. Adenosine triphosphate (ATP) - It is a complex PHYCOBILINS - photosynthetic molecule that contains the nucleoside adenine pigmentsefficient at absorbi...

GENERAL BIOLOGY REVIEWER will otherwise be destructive to Quarter 2 Chlorophyll. Adenosine triphosphate (ATP) - It is a complex PHYCOBILINS - photosynthetic molecule that contains the nucleoside adenine pigmentsefficient at absorbing red, orange, and a tail consisting of three phosphates. yellow and green light, wavelengths that are not - major energy currency of the cell. well absorbed by chlorophyll a. - provides the energy for most of the - water-soluble pigments, and are found in the energy-consuming activities of the cell. cytoplasm, or in the stroma of the chloroplast - occur only in cyanobacteria and rhodophyta LIGHT DEPENDENT - requires light Input - light energy, H2O FUNCTIONSOFATP Output - ATP, NADPH, 02 location - thylakoid membrain, converts: A. Transport work: movement of substances in the cell (e.g. sodium-potassium pump). B. Mechanical work: contraction of muscles, LIGHT INDEPENDENT OR CALVIN CYCLE - beating of cilia and flagella in bacteria, happens in the stroma of chloroplast, circulation of blood. Input- CO2, ATP, NADPH c. Chemical work: building complex molecules, Output - glucose Photosynthesis. - Glucose will be stored as starch or surcise Oxidation – loss of electrons (e.g. glucose to carbon dioxide) AEROBIC RESPIRATION - Presence of oxygen, Reduction – gain of electrons (e.g. oxygen to Location - Cytoplasm and mitochondria water) Organism - Bacteria and Archea No. ATP - 36 - 38 ATP PHOTOSYNTHESIS - Photosynthesis occurs in ADVANTAGE - release more energy than the green areas of the plant. anaerobic - Goal is to capture light energy (photons) and DISADVANTAGE - requires a large amount of use carbon dioxide to produce glucose. oxygen - Photosynthesis is the process by which autotrophic organisms use light energy to make ANAEROBIC RESPIRATION - Without oxygen sugar and oxygen gas from carbon dioxide and Location - Cytoplasm water Organism - Animals, plant - Chloroplasts absorb light energy and convert it No. ATP - 2 ATP to chemical energy ADVANTAGE - provides the energy muscles need for short, intense and burst of activity CHLOROPLAST - an organelle DISADVANTAGE - produces lactic acid, which where photosynthesis takes can cause pain and cramps in muscle Place BALANCE EQUATION FOR AEROBIC CHLOROPHYLL - pigment found in the RESPIRATION - (Glucose) C6 H12 O6 + 6CO ------ inside the chloroplast of 6CO2 +6H2O + ENERGY a plant cell. -Chlorophyll absorbs blue and red light while it transmits and reflects green light. FACULTATIVE ANAEROBE - Can survive and grow with or without the presence of oxygen CAROTENOIDS - pigments in the form of orange, (lactobacillus) red, yellow colors OBLIGATE ANAEROBES - Can ONLY survive - antioxidants that promote good eyesight in without the presence of oxygen (Clostridium humans. botulinum) - serve as protection for chlorophyll by dissipating excessive energy that HYPOXEMIA - A decrease in the amount of - some organisms, including yeast, can create oxygen in the blood energy without oxygen, but produce the toxin ethanol as a by product. HYPOXIA - A decrease in the amount of oxygen in the body's tissue - often involves Saccharomyces cerevisiae,(commonly known as baker’s yeast), which derives its name from sugar (saccharo), CELLULAR RESPIRATION - set of the metabolic fungus (myces) and beer (cerevisiae). reactions and processes that take place in the cells of organisms to convert biochemical - examples are bread, vinergar, apple cider, beer energy from nutrients into adenosine and wine. triphosphate (ATP), and then release waste products. LACTIC ACID - Lactobacillus is the most common bacteria used. GLYCOLYSIS -process converts one molecule - examples are pickles, cheese, yogurt, of glucose into two molecules of pyruvate sauerkraut, kimchi (pyruvic acid) causes muscle soreness Location: Cytoplasm Starting Materials: Glucose Products: pyruvate, NADH, ATP, and water. Pyruvate, before entering the Krebs cycle, is converted into acetyl-CoA through oxidation KREBS CYCLE -also called citric acid cycle or tricarboxylic acid cycle Location: Mitochondrial matrix Starting Materials: Pyruvate, NAD Products: CO2(as waste), NADH ETC( ELECTRON TRANSPORT CHAIN) - Oxygen as final electron acceptor, ATP synthase Location: Inner membrane of mitochondria Starting Materials: NADH Products: ATP, Water, NAD+ CHEMIOSMOSIS - also called Oxidative phosphorylation Location: occurs mainly in the thylakoids of chloroplast. Starting Materials: ATP synthase Products: ATP molecules FERMENTATION- process where microorganisms produce a beneficial and desirable change in food. ALCOHOLIC

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