Bi 101 Lecture Exam Two Study Objectives: Chapters 5‚ 6‚ 7 All concepts and vocabulary are fair game in Chapters 5-7 Chapter Five: ………….. Membranes Evaluate the importance of membranes to the homeostasis of the cell‚ emphasizing their various functions Explain how the properties of the lipid bilayer govern many properties of the cell membrane (ie understand the chemical lipid bilayer structure—what does “hydrophobic” and “hydrophilic” mean?) Discuss the general types‚ functions‚ and
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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
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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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Light Intensity on the Rate of Photosynthesis. Light intensity is one ... 4. Darken the laboratory by turning off as many lights as possible. Rate Of Photosynthesis And Light Intensity Discussion Lab Report ... www.studymode.com/.../rate-of-photosynthesis-and-light-intensity-discu... Free Essays on Rate Of Photosynthesis And Light Intensity Discussion Lab Report for students. Use our papers to help you with yours 1 - 20. Photosynthesis light intensity lab report - free
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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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There are many differences between photosynthesis and cellular respiration. Photosynthesis requires energy as photons. Cellular respiration supplies energy in the form of ATP. In photosynthesis‚ electron transport occurs in the membranes of chloroplasts or thylakoid discs. Cellular respiration takes place in the membranes of mitochondria. In photosynthesis‚ water breaks down to supply 2 electrons and 2 Hydrogen ions and release ½ O at the beginning of the chain. In cellular respiration‚ 2 electrons
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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
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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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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
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organisms need to survive. Carbon is the basic building block of all living things. It moves through an ecosystem in a cycle called the carbon cycle. In this cycle carbon in the atmosphere is known as carbon dioxide. Plants use it to perform photosynthesis and make food. Animals then eat the plants that contained the carbon. Carnivores then eat the other animals thus releasing carbon in animals. Both plants and animals respire. Carbon dioxide is returned to the atmosphere through respiration and
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