Lab 3 – Homework 1. Purpose of today’s experiment: To determine the effect osmotic pressure might have on cellular membranes‚ specifically when beet slices are placed in NaCl solutions of varying concentrations. 2. Hypothesis: The osmolarity will directly increase with increasing NaCl concentrations. 3. Control = Distilled Water – this was present in all solutions 4. The independent variable – salinity of the 6 solutions; while predetermined‚ the NaCl concentrations varied from 0% to 15%.
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light energy into chemical energy 2. The light independent reaction uses the chemical energy to make organic molecules Overview of Photosynthesis 8.2.3 Explain the light dependent reactions The light dependent reactions occur on the thylakoid membrane and may occur by either cyclic or non-cyclic processes In both processes‚ light excites chlorophyll (clustered in photosystems) which release electrons that pass through an electron transport chain‚ making ATP (photophosphorylation) Non-Cyclic
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Lecture 2 Macromolecule components of cells I Chapter 5 Dr Ahmed Aldarmahi Assistant Professor College of Medicine – Jeddah Lecture Objectives • Distinguish between monosaccharides‚ disaccharides and polysaccharides. • Distinguish between saturated and unsaturated fats. • Describe phospholipids and steroids. Glossary • • • • • • • MonoDiPolyMacroPolymer Phospholipids Steroid Overview: The Molecules of Life • All living things are made up of four classes
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membranas. Su material nuclear se encuentra flotando en el citoplasma. Las bacterias se clasifican como procariontas. Las celulas eucariontas son las mas avanzadas y contienen organelos rodeados por membranas. Su material nuclear esta rodeado por una membrane nuclear. Las celulas de las plantas‚ los hongos y los animals son eucarionticas. Las celulas de las plantas. La celula procariotica‚ generalmente esta rodeada por una pared celular‚ mientras que solo algunas clases de celulas eucarioticas tienen
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Biology: 1. Living Things Please remember to photocopy 4 pages onto one sheet by going A3→A4 and using back to back on the photocopier Syllabus OB38 Understand how to use a simple key to identify plants and animals‚ including vertebrates and invertebrates OB39 Investigate the variety of living things by direct observation of animals and plants in their environment; classify living organisms as plants or animals‚ and animals as vertebrates or invertebrates OB40 Identify the basic life
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pericardium? The inner layer of the pericardium is a serous membrane called the parietal layer of the pericardium. 8 What is the name of the serous membrane on the surface of the heart? The surface of the heart called the visceral layer‚ or epicardium. 9 What forms the pericardial cavity? The two portions of the serous membrane‚ the visceral and parietal layers form the pericardial cavity. 10 What is the function of the serous membrane? The serous membrane produces and maintains the serous fluid in the pericardial
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Introductory Biology‚ Biology 1407 MWF 11:00. TAMU-CC. Working version of the 1st lecture exam‚ as of 19 January 2014 1. Science can prove hypotheses to be false because: 2. In a population: phenotype Average number of offspring per individual Very small nose 5.5 Small nose 6.0 Medium size nose 10.7 Large nose 20.7 What is the relative fitness of organisms with small noses? 3. In the above population‚ assuming that at one time the population followed a normal curve
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“Biology Article” Barbara Manley Professor Trinna S. Johnson Introduction to Biology May 9‚ 2013 A New System for Cancer Detection This article summarizes a new technique that would allow for cancer cell detection without being invasive to a person’s body. It states that currently‚ human cancer cell detection is conducted through a person being cut on or biopsied. This new procedure allows for humans bodily fluids to be utilized in detecting cancer cells. Chandra states‚ “While current
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biology FOLIO BIOLOGY POLLUTION NIK ‘AINAA SYAKIRAH BT NIK GHAZALI 5 IBNU SINA INTRODUCTION Pollution is the introduction of contaminants into a natural environment that causes instability‚ disorder‚ harm or discomfort to theecosystem i.e. physical systems or living organisms. It can also be define as any undesirable changes in physical‚ chemical or biological characteristics of the natural environment‚ brought about when harmful substances or energy released by human activities. Pollution
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CHAPTER 23 Circulation Chapter Objectives Opening Essay Describe the adaptations of giraffes and humans to circulate blood against the pull of gravity. Circulatory Systems 23.1 23.1 23.2 Describe the general functions of a circulatory system. Compare the structures and functions of gastrovascular cavities‚ open circulatory systems‚ and closed circulatory systems. Compare the cardiovascular systems of a fish‚ an amphibian‚ a reptile‚ a bird‚ and a mammal. The Human Cardiovascular System
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