PLASMA MEMBRANE SELECTIVE PERMEABILITY= allowing some substance to cross it more easily than others composed of: Phospholipids Proteins Carbohydrates Cholesterol FLUID MOSAIC MODEL Phospholipids are primary lipids(constantly moving‚ fluidly) AMPHIPATHIC-containing hydrophobic and hydrophilic regions Mosaic part=not made of one thing Freeze-fracture studies:way to view what’s inside FLUIDITY OF MEMBRANE Move within bilayer Most of lipids and some proteins‚ drift laterally
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J. Algal Biomass Utln. 2014‚ 5 (3): 8- 15 Comparative Study of Microalgae Samples from Nepal for bio-fuel potentials ISSN: 2229- 6905 Comparative Study of Microalgae Samples from Nepal for bio-fuel potentials Nirpesh Dhakal1*‚ Sanjaya Lama1‚ Angela Shrestha1‚ Tika Bahadur Karki1‚ Paras Mani Timilsina1‚ Shiva Kumar Rai2 1 2 Department of Biotechnology‚ Kathmandu University‚ Dhulikhel‚ Nepal Department of Botany‚ Post Graduate Campus‚ Tribhuvan University‚ Biratnagar‚ Nepal email:
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Name : Aimi Nabilah Bt Hassin Class : BT81 KINGDOM | PHYLLUM | CHARACTERISTICS | EXAMPLE | PLANTEA | Vascular plants (Tracheophyta) | * larger plants which have specialised transport systems (veins) to carry nutrients and water * have true roots‚ stems‚ and leaves for transport of nutrients and water around the plant * Have structures called true roots‚ stems and leaves. * Vascular tissue is present.-These special transport cells run continuously through the roots‚ stems and the
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More than two thousand years ago‚ people in India played a board game called chaturanga. This board game is said to be the beginning of chess. Chaturanga means ‘four limbs`. It stood for the four parts of the army-the warriors who fought on horses‚ the charioteers an the infantry. Since the game was about the army and war plans‚ it was very popular with kings warriors and scholars. Chaturanga was played by four people. Players sitting opposite each other were parters. Each player had four
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Cells Now we need to discuss CELLS. You’ve probably heard of cells‚ and may even know of a few‚ such as blood cells‚ nerve cells‚ or skin cells. What are these things called cells? Cells are the smallest living things. You’ll be learning a lot about cells in this course. For now‚ however‚ I’ll introduce you to just a few basic things about them. Cells are extremely tiny organisms that carry out all of the functions of life inside a thin layer of “skin” called (unimaginatively) the CELL MEMBRANE
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SCHEME OF EXAMINATION FOR B.Sc. (ZOOLOGY) SEMESTER SYSTEM w.e.f. Session 2011-12 Scheme of B.Sc. 1st Year Semester I Sr. No. 1. 2. 3. 4. 5. Paper code 1.1 1.2 P-101 2.1 2.2 Nomenclature Life and Diversity from Protozoa to Porifera and Cell Biology – I Life and Diversity from Coelentrata to Helminthes and Cell Biology – II Practical Marks+IA 40+10 40+10 40+10 40+10 40+10 40+10 300 Periods / week 4 4 4 4 4 4 Exam. Duration 3 hrs. 3 hrs. 3hrs. 3 hrs. 3 hrs. 3hrs. Semester II Life and Diversity
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The Semipermeability of Cell Membrane to Different Osmotic Environments Using Dialyzing Bag Model1 Sittie Johaynnah M. Sambarani Group 3 Sec. I-1L December 17‚ 2012 ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- 1 A scientific paper in partial fulfillment of the requirements in Biology 10 Laboratory under Professor Junaldo
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unaided eyes Microorganisms or microbes They are virtually everywhere - ubiquitous Types of Microorganisms Bacteria Fungus Yeast & molds Bacillus E. coli Algae Archaebacteria Diatom Dead Sea salt pillar Protozoa Virus Paramecium HIV 1 Why study microbiology? W e have trillions of living microbes in our bodies – indigenous or normal microflora 3% known microbes are disease-causing (pathogens) Essential for life on planet e.g oxygen production‚ nutrients recycling
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Skinny Dipping and You Why this is no longer a perfect date 12/8/2007 Aaron Gonzalez Materials and Methods Nikon Compound Microscope Glass Microscope slides Cover Slips Paper Towels Thermometer Glass Jar pH Strips I took the sample pond water from the library pond (Central Michigan University)‚ thinking well during mock rock this year I want to know really what I am swimming in. So I took a jar then scooped it up from the muskiest part of the pond. After collecting
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secrete enzymes that diffuse out of the cells to digest food and then absorb the products into the cells. Figure 6.3 illustrates examples of extracellular digestion. DIGESTION IN LOWER FORMS OF ANIMALS In some organisms like the Amoeba and the Paramecium the large molecules and the solid particles are taken in by cells and digested by enzymes. This is intracellular digestion. The parts of the cell are made up of the same kind of molecules as the food that the enzymes of the cell digest. Why don’t
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