Lab 3 : Techniques in Microscopy Title : Preparation of light microscope observe cell organisms. Objective : To observe and investigate the cell structure under the light microscope. Introduction A microscope is an instrument used to magnify and resolve a specimen. It is important to know several important features of microscopy which involves magnification‚ resolution and contrast. Magnification is the enlargement of a specimen while resolution is the ability to distinguish detail or the
Premium Microscope
Lab Report T 1:35 Prof. Clemente Fernandez MCB2010L 11/19/13 Cristina Carvajal Fatima Hussain Nordia Johnson Jessica Rignack Amoeba: It is a unicellular protozoan that lacks a definite shape. Live in both fresh water and marine habitats. Some are found in soil‚ and many have adapted to parasitic life on the body of marine animals or internal organs of both aquatic and terrestrial animals. Amoeba reproduces asexually by binary and multiple fissions. They eat algae‚ bacteria‚ other
Premium Bacteria
of transmission of characters both in the animal and plant kingdom which seemed to defy every known genetic law assuming the whole of inheritance to be through the nucleus. The inheritance of flower color in 4° Clock plants‚ Kappa particles in Paramecium etc‚ cannot be explained on the basis of nuclear inheritance. What then is the secret of their inheritance pattern? Scientists started looking for
Free Cell Eukaryote DNA
micrograph Examine the structures of the plant and animal cells below. Which of the following organelles connect(s) to the nuclear envelope? The endoplasmic reticulum The figure below shows a Paramecium‚ a single-celled freshwater protist. The hairlike structures visible on the Paramecium allow it to move. These structures are ______. Cilia The child shown in the figure below is not feeling well. Why does the poster say "No Antibiotics Please"? Antibiotics should be taken only to promote
Premium Eukaryote Organelle DNA
Give an example of each. A prokaryote has no nucleus‚ while a eukaryote does. An example of a prokaryote is bacteria. An example of a single celled eukaryote is a paramecium. An example of a multi-celled eukaryote is an animal cell. 16. Give three examples of single celled eukaryotes. Three examples of single celled eukaryotes are paramecium‚ amoeba‚ and euglena. 17. What features help a single celled eukaryote function? One of the biggest things that allow single celled eukaryotes to function is
Premium DNA Cell Eukaryote
INSTRUCTIONAL OBJECTIVES 1. Define Ocular: (eyepiece) Objective: provides magnification of 4‚ 10‚ 40‚ and 100 power Low power: 4X 10X High-and-dry: 40X Oil immersion objective: 100X Fine adjustment: is essential for final‚ sharp focusing Coarse adjustment: is used initially for rough focusing Parfocal: as you cane from one objective to another you will find that your microscope is very close to a final focus Sub stage condenser: light focusing lens Iris diaphragm: used to regulate the
Premium Microscope Optics Telescope
BI108 Animal Biology Lab Report Practical 6: Osmoregulation and Excretion of Vertebrates and Invertebrates Title: Osmoregulation and Excretion of Vertebrates and Invertebrates Abstract: In every aspect of an environment‚ there is a variance in the concentration of fluids present in the environment and the bodies of organisms. Osmoregulation is the regulation of water and ion concentrations in the body. Keeping this regulation precise is critical in maintaining life in a cell
Premium Annelid Osmoregulation Insect
The Central Dogma. This hypothesis was described by Crick in 1958. In 1953‚ Watson and Crick were the first to determine the true crystalline structure of DNA‚ using model building and then X-ray crystallography. Once the DNA structure was determined‚ the mechanisms behind inheritance‚ information flow‚ and gene function fell into place. Overall the flow of information is depicted as: DNA --> RNA --> protein. Both DNA and RNA can be replicated (i.e. DNA is synthesized from DNA‚ and RNA from RNA)
Premium DNA Gene Cell
Exercise 13 MITOSIS: REPLICATION OF EUKARYOTIC CELLS ANSWERS TO QUESTIONS 1. a. Mitosis and cytokinesis are often referred to collectively as "cellular division." Why are they more accurately called cellular replication? The result of mitosis is production of two cells (replicates) identical to the parent cell. The genetic material is replicated rather than divided. b. Does the cell cycle have a beginning and an end? The organization of our study of cellular events indicates a beginning and
Premium DNA Chromosome Meiosis
these are different of the previous ones because of they have a nucleus. The principal characteristics of these are that they are mainly aquatic‚ and when some protistas move around‚ others stay in one place. Some examples of protistas are algae‚ paramecium‚ and amoeba. Fungi are usually motionless organisms and belong as their name show to the kingdom fungi. Most fungi are multicellular and consist of many complex cells. They absorb nutrients from parts of plants that are decaying in the soil for
Premium Eukaryote Bacteria Plant