are large cytoplasmic organelles. Plastids are major organelles found in the cells of plants and algae. Plastids are the site of manufacture and storage of important chemical compounds used by the cell. Plastids often contain pigments used in photosynthesis‚ and the types of pigments present can change or determine the cell’s colour. The term plastid was derived from the Greek word plastikas meaning formed or moulded. This term was coined by Schimper in 1885. In plants‚ plastids may differentiate
Free Photosynthesis Cellular respiration Adenosine triphosphate
Chapter 5 The Working Cell Energy • Capacity to do work • Types of energy – – – – Kinetic energy – energy of motion Potential energy – stored energy Thermal energy - heat Chemical energy - potential energy of molecules • Thermodynamics – Study of energy Oxidation-Reduction Reactions • When an atom or molecule loses an electron‚ it is said to be oxidized – process called oxidation • When an atom or molecule gains an electron‚ it is said to be reduced – process called reduction
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energy of the Sun to produce usable forms of energy • photosynthesis- the process by which producers use solar energy to convert CO2 and water into glucose. • cellular respiration- the process by which cells convert glucose and oxygen into energy‚ carbon dioxide‚ and water. • Consumers/ Heterotrophs- An organism that must obtain its energy by consuming other organisms • primary consumers-an individual incapable of photosynthesis; must obtain energy by consuming other organisms
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sustainable energy source? One process is photosynthesis. In plants‚ cells called chloroplasts collect energy from the sun and use water and carbon dioxide (photosynthesis) to make sugars.1 Light energy (called photons) hit single chlorophyll pigments in the cells of the plant leaves. 2 Photoautotrophs is the term used for plants that create energy out of sunlight. Plants that do not use the sun’s energy are called chemoautotrophs.3 For photosynthesis to begin a few conditions must be met; enough
Free Photosynthesis Energy Adenosine triphosphate
Autotrophic cells capture free energy through photosynthesis and chemosynthesis. Photosynthesis traps free energy present in sunlight that‚ in turn‚ is used to produce carbohydrates from carbon dioxide. Chemosynthesis captures energy present in inorganic chemicals. Cellular respiration and fermentation harvest free energy from sugars to produce free energy carriers‚ including ATP. The free energy available in sugars drives metabolic pathways in cells. Photosynthesis and respiration are interdependent processes
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“WARE HOUSE” “WARE HOUSE” Ware house is an area which serves to be the storage area for the starting and finished products which are obtained as a result of production. Ware house is composed of following areas:- Q.A Q.A Q.A sends PO and MI to Q.A sends PO and MI to GENARATE PO AND SEND TO GENARATE PO AND SEND TO SHOP ORDER SEND TO SHOP ORDER SEND TO RAW MATERIAL WARE HOUSE RAW MATERIAL WARE HOUSE MATERIAL MANAGEMENT MATERIAL MANAGEMENT Receiving and dispatch of
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Introduction: The rate of photosynthesis varies greatly with changes in wavelengths of light. Light’s colour is determined by its wavelength of light‚ and thus it is possible to devise an experiment to determine which wavelengths of light are most productive for photosynthesis than others. In this experiment I use a plant called Elodea (pond weed). Elodea is native to North America and it is also widely used as aquarium vegetation. The basic structure of these plants are whirls of leaves around
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Name: ________________________ Class: ___________________ Date: __________ ID: A GENERAL BIOLOGY PRACTICE MIDTERM TEST 2010-2011 Multiple Choice: Identify the choice that completes the statement or answers the question. ____ 1. The work of scientists usually begins with a. testing a hypothesis. b. careful observations. c. d. creating experiments. drawing conclusions. ____ 2. What is the term for all parts of Earth inhabited by living things? a. population b. ecosystem c. biosphere
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OXIDIZE another molecule 1. NAD+ - oxidizes glucose to 2 pyruvate in glycolysis‚ oxidizes pyruvate to CO2 in the Kreb’s cycle (gets reduced to NADH) 2. NADP+- oxidizes H2O to O2 during the Light Dependent Reactions of photosynthesis‚ final electron acceptor from chlorophyll (PSI) (gets reduced to NADPH) 3. FAD+- oxidizes NADH to NAD during glycolysis and transported to the mitochondrion (gets reduced to FADHs) ii. Reducing Agents: are OXIDIZED to REDUCE
Free Photosynthesis Cellular respiration Adenosine triphosphate
locomotion Plant-like= Algae * 6 phyla based on their chloroplasts and pigments they have * Autotrophic: make their own food by photosynthesis * Some consume other organisms in the presence of light & other are symbiotic (live in other organisms- not necessarily beneficial for both parties) * Carry pigments in their chloroplast to carry out photosynthesis * Most common is chlorophyll which is typically green in colour * Lack leaves‚ stems‚ roots and water-conducting tissue
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