Topic 2 – Cell membranes Reading Chapter 5 Objectives Functions of cell membranes The fluid mosaic model The lipid bilayer – phospholipids‚ glycolipids and sterols Properties of the lipid bilayer Membrane proteins – the ‘mosaic’ in the model Solute movements across membranes BIO 1140 – SLIDE 1 http://www.nikonsmallworld.com/gallery/year/2006/id/751 Functions of cell membranes – an overview Fluid mosaic model Singer & Nicolson 1972 Fluid lipid molecules in which
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BIO 2135 - Animal Form and Function Midterm examination Worth either 10% or 15% of your final grade Tuesday February 9‚ 2010 a) Place your name and student number in the space provided below. Be sure that your name is on the top of each page because the exam will be separated to facilitate marking b) Circle the lab section for your lab. c) Check to be sure that your exam is complete with a total of 12 pages including this one d) Answer all questions in the space provided on the exam. Do not transfer
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features of these organelles that have given rise to the theory of endosymbiosis? What class of organelles do chloroplasts belong to? What are some other examples from this class? Why are vacuoles so important for a plant or protist cell? What do plants and what do protists use the vacuole
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Chapter 1 Introduction: Themes in the Study of Life Multiple-Choice Questions 1) Which of the following properties or processes do we associate with living things? A) evolutionary adaptations B) energy processing C) responding to the environments D) growth and reproduction E) all of the above Answer: E Topic: Overview Skill: Knowledge/Application 2) Which of the following is not a theme that unifies biology? A) interaction with the environment B) emergent properties C) evolution D) reductionism
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A microorganism (from the Greek: μικρός‚ mikros‚ "small" and ὀργανισμός‚ organismós‚ "organism") is a microscopic organism‚ which may be a single cell[1] or multicellular organism. The study of microorganisms is called microbiology‚ a subject that began with Antonie van Leeuwenhoek’s discovery of microorganisms in 1675‚ using a microscope of his own design. Microorganisms are very diverse and include all the bacteria and archaea and almost all the protozoa. They also include some members of the
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previously thought to be uninhabitable to all known life forms. 2. the Protista (Protoctista) The kingdom Protista includes a diverse array of organisms‚ from minute flagellated cells to macroscopic kelp. The smallest microscopic organisms are termed protists‚ consequently some biologists prefer to call this kingdom the Protoctista rather than Protista. All
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01/28 Domain: Eukarya “Eu karyotic Protist Supergroups” 1. Supergroup Excavata Genus – Euglena Tryponsoma 2. Super group Chromolaveolata a. Ceratium b. Plasmodium c. Paramecium d. Laminaraia 3. Super group Archaeplastida a. Red Algae “ Polysiphonia” b. Green Algae “Chlamydomadas‚ Hydrodictyon‚ Spirogyra‚ Volvox” 4. Unikonta a. Amoeba b. Some other small creatures that have flagella Pro – No membrane‚ No Histone‚ They have a cell wall‚ unicellular Super groups in Eukarya domain:
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CDC1 Study Questions LIVING ORGANISMS CELLULAR CHEMISTRY CELL BIOLOGY GENETICS PLANT BIOLOGY INVERTEBRATES AND VERTEBRATES ECOLOGY LIVING ORGANISMS CLASSIFICATION Compare and contrast living and nonliving things. What is biology? The study of living things (science of life) Describe characteristics found in all living organisms. * Living things are made of cells. * Living things obtain and use energy. * Living things grow and develop. * Living things reproduce
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Three domains: 8. Domain Bacteria 9. Domain Archaea 10. Domain Eukarya * Six Kingdoms: 11. Kingdom Animalia (animals) 12. Kingdom Plantae (plants 13. Kingdom Fungi (fungi) 14. Kingdom Prototista (protists) 15. Kingdom Archaea (archaebacteria) 16. Kingdom Bacteria * Modern classification no longer relies on morphology (physical differences) as much as Linneaus; instead‚ we focus on evolutionary relationships (phylogeny) * 5 Binomial
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Biological Science‚ 5e (Freeman) Chapter 1 Biology and the Tree of Life 1) Pasteur’s experiments proved that A) Cells cannot survive in swan necked flasks B) In order to grow‚ cells need to be supplied with oxygen C) Spontaneous generation can only occur if nutrient broth is left open to the environment D) Sterilizing nutrient broth prevents spontaneous generation E) Pre-existing cells present in the air can grow in sterilized nutrient broth Answer: E Bloom’s Taxonomy: Knowledge/Comprehension
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