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Biological Sciences Essay Examples

Body Systems of Humans, Crayfish, Pigs, and Earthworms

Body Systems of Various Organisms All organisms in the world have a range of systems and organs in their body. Some organisms may share similar body systems while others have absolutely nothing in common. Several of those organisms include humans, pigs, crayfish, and earthworms. From their mushy, gushy organs to their soft, gentle skin, you…

Dna Transcription, Translation Quiz Study Guide

Study Guide 3/1/11 1. Describe the three parts of a nucleotide and how they bond to form a nucleotide. The three parts of a necleotide are a carbon sugar, a phosphate group and a nitrogenous base. The carbon sugars bond to the phosphate groups by covalent bonds while the nitrogenous base bonds with it’s compliment…

Biology Virtual Lab- Parts of a Flower

Tip of the stamen that produces pollen containing sperm| Filament| Slender stalklike part of the stamer that supports the anther| Ovary| Swollen base of the pistil that contains the ovules| Ovule| eggs that develop into seeds after they are fertilized| Petals| Colorful leaflike parts that attract insects and other animals for pollination| Pistil| Structure that…

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Human Homeostasis Gizmo

Gizmo Warm-up To survive, an organism must be able to maintain stable internal conditions in a changing environment. This process is called homeostasis. The Human Homeostasis Gizmo™ allows you to explore how the human body stays at a nearly constant temperature in different conditions. Notice the Air temp. and Body temp. thermometers representing the air…

Women’s Brains

Women’s Brains by Stephen Jay Gould discusses how inferior women are to men, based on scientific data. George Eliot, in the prelude of Middlemarch, grieved over the unfulfilled lives of talented women. She wrote in 1872 that the leaders of European anthropometry or measurement of the human body, scientifically measured the inferiority of women. But…

Cell Physiology

Describe two variables that affect the rate of diffusion: Two variables that affect the rate of diffusion are size and concentration gradient. The molecular size vs the MWCO size of the membrane can either increase, decrease, or prevent diffusion. The greater the concentration gradient the greater the diffusion rate due to molecules moving from areas…

Phytochemical Analysis of Amaranthus Viridis L.

A Biological Research Submitted to the Research Center Alabel National Science High School Regional Science High School for Region XII Alabel, Sarangani Province Submitted by: Shaira Mae M. Yamon Fourth Year- Diamond Submitted to: SHIELA P. BUTIL, Ph. D. Research Adviser August 5, 2013 ? Chapter I Introduction A. Background of the Study Amaranth (Amaranthus)…

Investigation on Effects of DOPA pH on Enzyme Activity

How do the different pH buffers affect activity of potato enzyme/extract? Introduction: Proteins are polymers that are made up of smaller units/monomers called amino acids. There are 20 different types of amino acids, thus make up many different combinations in types, numbers of amino acids as well as their orders – an explanantion for why…

bio lab pill bug

What are the Effect of Different Environments and the Movement of Pill Bugs? Purpose: The purpose of this lab was to analyze pill bugs activity in different environments and determine the effect of wet/dry or dark/light environments have on them and how taxis takes place in their choices in living in areas. Background information: Terrestrial…

Osmosis in Onion Cell

A living plant cell will shrinks or swells depending on the solute concentration of the cell in relation to the solute concentration of the fluid surrounding the cell (1). It follows that water will move from a region of high water concentration to a region of low water concentration, therefore, if a cell is placed…

Hibiscus rosa-sinensis Essay

The species of hibiscus which seems to hold the greatest figure of discrepancies is Hibiscus rosa sinensis. These workss appear to hold countless fluctuations in coloring material and form in both individual and dual signifiers. due to the involvement in these workss by early hibiscus enthusiasts who hybridised Hibiscus rosa-sinensis with other compatible species. Ross…

Blue-Ringed Octopus Essay

The blue-ringed octopus lives in shallow reefs and tide pools in the Pacific Ocean. normally at deepnesss runing from 0 to 20m ( Sheedy and Beasley. 2003 ) . There are four sorts of blue-ringed Octopuses ( genus Hapalochlaena ) : ( 1 ) the greater blue-ringed octopus ( Hapalochlaena lunulata ) ; ( 2…

The moral and ethical Issues of Recombinant DNA

Recombinant DNA is a modern technology involving the combination of DNA from one organism with the DNA of another. This often involves inserting human DNA into the DNA of another organism. When these genetically engineered organisms are cultured, they produce a human protein. Recombinant DNA gives scientists far greater control over genetic manipulation For example,…

All flesh is grass

“All flesh is grass” is a quote from the book of Kings in the bible. Initially it is difficult to see how this relates to biology. However it is possible to relate the two, especially when considering the relationship between flesh and grass, or plant and animal life. It is necessary to consider exactly what…

Enzymes-Amylase and Starch

Mechanical digestion, for example the tounge, is used to break the large food particles down so that they are easier to swallow. Once the food has be taken down into the stomach, some more Mechanical digestion takes place but this is helped by Chemical Digestion. Enzymes are there to help break the molecules down. They…

How temperature will effect the speed in which the enzyme Catalase will react with Hydrogen Peroxide

Individual enzymes are named by adding ase to the name of the substrate with which they react. The enzyme that controls urea decomposition is called urease; those that control protein hydrolyses are known as proteinases. Some enzymes, such as the proteinases trypsin and pepsin, retain the names used before this nomenclature was adopted. * They…

The effect of temperature on the hydrolysis of starch using amylase extracted from barley

Enzymes are a class of proteins that catalyse chemical reactions, which increases the rate of a metabolic reaction. Most enzymes are specific, working on a particular or class of reactions. In this case I am using an enzyme known as amylase (a group of enzymes which convert starch to sugar), which is an important metabolic…

Enzyme Experiment with Temperature

Enzymes are catalysts in the body that speed up the breakdown of food, and are essential in the digestive system. Although food can be broken down by molecules colliding with it, the process is speeded up greatly by enzymes, a type of catalyst. We know from previous knowledge that enzymes are proteins, and they require…

The role of the skin, lungs and kidneys in excretion

Report that evidences a cognition and apprehension of the function of the tegument,lungs and kidneysin elimination. How is urine produced? Harmonizing to Innerbody ( 1995-2015 ) , urine is produced by the critical urinary system within the human organic structure which comprises of the urinary vesica, the urethra, ureters and the kidneys. The kidneys occupation is…

Investigation of Photosynthetic Pigments in Spinach

Investigation of Photosynthetic Pigments in Spinach Michael Yacoub BIOL&211 Lori Hayes Introduction: Purpose: To demonstrate the existence of the pigments of photosynthesis in spinach by separating them using chromatography, then measure them using spectrometry. There are multiple pigments in photosynthesis, the varying pigments allow the plant to absorb light at various wavelengths which allows the…

Combined solution of Garlic (Allium sativum) and Lemongrass (Cymbopogon citratus) Essay

The survey is entitled Combined solution of Garlic ( Allium sativum ) and Lemongrass ( Cymbopogon citratus ) . Specifically. it sought to happen out how these two solutions ( lemon grass and Allium sativum ) can efficaciously kill mosquitoes. It aimed at looking for an organic and safe step in handling the copiousness of…

Compare And Contrast B Cells And T Cells Biology Essay

The epithelial surfaces of the organic structure service as an effectual barrier against most micro-organisms, and they are quickly repaired if wounded. Adaptive unsusceptibility is initiated when an innate immune response fails to extinguish a new infection, whereby an activated antigen showing cells ( APCs ) bearing pathogen ‘s antigens are delivered to the run…

Biology on Surface Area to Volume Ratio Essay

As we all know. many chemical reactions go on within both unicellular and multicellular beings. Many utile substances have to spread into different cells in order to assist supply the necessary energy needed for these reactions to go on. at the same clip. the waste merchandises produced after these reactions have taken topographic point have…

Determination of molarity of cell sap in potato tubers

Plant and animal cells are made up of a cell membrane. The plant cells have the cell membrane line in the inside of the cell wall. The cell wall provides the turgidity to the cell. The cell wall is dead and allows all substances to pass freely through it whereas the cell membrane is alive…

Osmosis Essay

Osmosis is a form of passive transport, and a specialised form of diffusion. It is the movement of water from a dilute solution to a more concentrated one, through a semipermeable membrane. Hence it is where water moves from a high to a low concentration. I will design an experiment to test this process on…

Septic Shock

In this essay septic shock and Its complications will be analyzed wealth the Immunological, gastrointestinal, cardiovascular, respiratory and renal (Including the acid-base) systems. This essay will contain the general discussion of homeostasis and will study the homeostasis responses to septic shock In each system. Sepsis and Septic Shock sepsis may be defined as the state…

Drosophila Melanogaster

Drosophila melanomas are most commonly known as fruit flies and are used in many genetic studies for a few simple reasons; they are small and easily handled, they have a short life cycle and they are easy to keep large numbers such as the confined spaces of a laboratory or classroom. 1] Drosophila also have…

Nature, Nurture, and Human Diversity

What makes you, you? Is who we are the result of our genes (nature) or is it the result of our upbringing (nurture)? Nature: the result of our genes Nurture: everything else other than genes, the culture you were brought up in, the country and family you were brought up In, the school you went…

The Pygmy Chain Sword Plants

Understanding the process of photosynthesis is also vital in other areas, such as medicine, agriculture, energy production, and even electronics. In medicine, since light has extremely high energy content, sometimes it can cause damage to living organisms such as skin cancer and skin aging. To combat the high-energy content, plants developed photoprotective mechanisms to limit…

Daphnia magna

This chapter provides an overview of the biology of waterless of the genus Daphnia. It describes basic aspects of Individual physiology and nutrition, Including some remarks about Immunity. It summarizes the typical life cycle and development of Daphnia. The modes of reproduction and the induction of resting egg production in cyclic and obligate parthenogenesis forms…

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