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Biological Sciences Essay Examples

Photosynthesis Formal Lab Report

This captured energy is used to convert carbon dioxide into complex energy-rich molecules that can be used by themselves or other organisms. “Photosynthesis is the conversion of light energy to chemical energy in the form of sugar and other organic molecules. ” (Russell, Wolfe, Hertz, & Starr, 2010). Photosynthesis can be categorized into two main…

Gram Negative Unknown Lab Report

E. Coli is most commonly found in the intestines of warm blooded organisms. Most E. Coli strands are non pathogenic however, there are strands known to cause food poisoning. Introduction There are multiple reasons for identifying unknown bacteria. In research, it is a must to be able to identify unknown bacteria if you are comparing…

Ap Bio Lab Report

Because segments interact with light, they are very useful to authoress. These pigments help the User gain energy. Because pigments only absorb a narrow range of light, many different color pigments are needed to capture more of the sun’s energy. There are three basic classes of pigments which are chlorophyll, carotenes, and physicians. There are…

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Lab Report: Appendicular Skeleton

Bone Identification Assignment: Observations: (NO SUBMISSION) Try to label/identify peninsular bones of a human skeleton. Flash cards and self quizzes often help students to quickly identify bones that will likely be seen on lab quizzes. Once major bones are identified, work on identifying major markings on each of these bones (i. E. Spine of the…

Cell Transport Mechanisms and Permeability Using Physioex

This enables nutrients to enter the cell, while keeping unwanted substances out. Active transport requires that the cell provide energy in the form of TAP to power the transport of substances through the membrane. During passive transport the substances move through the plasma membrane because of pressure or concentration differences between the interior and exterior…

Photosynthesis Lab Report

The following terms were used in this experiment – Photosynthesis: Photosynthesis is the process of converting light energy to chemical energy and storing it in the bonds of sugar. This process occurs in plants and some algae. Plants need only light energy, CO, and H2O to make sugar. The process of photosynthesis takes place in…

Anatomy review

Chapter 8 Test Review Multiple Choice . Which is not a part of the axial skeleton? A. rib vertebral column B. mandible C. clavicle D. Which is not a part of the appendicular skeleton? 2. coxal bones A. parietal bones radius The axial skeleton consists of: 3. 60 bones. 68 bones. 74 bones. 80 bones….

Osmosis and Diffusion Lab Report Introduction

While molecules in diffusion move down a concentration gradient, molecules during osmosis both move down a concentration gradient as well as across it. Both diffusion, and osmosis are types of passive transport, which do not require help. When the concentration of the environment outside of the cell is lower than the inside of the cell,…

Hemolysis Lab Report

Organisms also have white blood cells, also referred to as leukocytes, which mamba foreign antibodies in the immune system. White blood cells are complex in structure, and in contrast to red blood cells, have a nucleus. They include such cells as lymphocytes, monocot’s, sinkholes, interruptions and basophilic. While some cells such as lymphocytes make antibodies,…

Introduction to Sordaria Lab Report

The lab experiment examined meiosis and genetic diversity through the model organism, Sardinia familial. Meiosis is part of the sexual life cycle and occurs in all sexually reproducing organisms. It is a method of cell division that produces gametes. Meiosis has two parts: meiosis I and meiosis II. Both parts undergo the same four stages…

Animal Behavior: Mimicry Lab Report

This was done by creating palatable and non-palatable red, green, and purple prey out of flour and lard. They were placed on a feeding try in random arrays with the same relative frequencies twice daily. Our groups null hypothesis was that there would be no particular preference in the colors of prey that were removed…

Osmolarity: Concentration and Sucrose Solutions

Estimating Similarity by Change in Weight By: Sounds Kali 27 February 2012 TA- Ashley Hint Biology AAA-section 002 Abstract: My group and I conducted the experiment that estimates similarity by change in weight of potato tubers, this was conducted in order to explore the process of diffusion and osmosis and more importantly to investigate the…

Neuro Lab Report

We no longer observed an increase in peak of action potential trace at the 3. 5 Voltage. Activity 2-4: 1. What did you observe when the glass rod contacted the nerve? The glass rod contacted the nerve there was an instant deflection of the line. There was action potential on the oscilloscope. When 1. How…

Restriction Enzyme Lab Report

It is thought that, together with enzymes that methyl portions of native DNA, restriction enzymes protect cells from DNA of invading organisms cutting such DNA into pieces, thereby restricting its activity. In this experiment, using agrees gel electrophoresis, the number and relative positions of restriction sites for three restriction enzymes, Score, Hinkle and Pull, on…

Lab Report- Neurophysiology of Nerve Impulses

Neurons (also known as neurons, nerve cells and nerve fibers) are electrically excitable and the most important cells in the nervous system that functions to process and transmit information. Neurons have a large number of extensions called dendrites. They often look likes branches or spikes extending out from the cell body. It is primarily the…

Gmo Lab Report

At this rate, Genetically Modified Organisms within food products will increase dramatically, but is this for the best? There are many sis factors that have been brought up with genetically modified foods such as potential increase of cancer according to a French study conducted by Dry. Giles Eric Israelis (Kalmia, 2012). Genetically modified food is…

Lab Report Daphnia

When the animal is warmer, the heart rate will raise – as long as the temperature isn’t sufficiently high to harm the animal. (Campbell, 2005) Alcohol is a depressant. This means that body systems will slow down when alcohol is introduced. In particular, the heart rate will get consistently lower. If too much alcohol is…

Lab Report-Photosynthesis

When reduced this indicator changes from blue to a colorless solution. When light is absorbed, water is oxidized and the excited electrons are transferred for the process of reducing NADIA+ to NADIA. This transfer is done via the electron transport chain. DUCKPIN is able to capture the electrons that are transferred through the electron transport…

Predator Prey Lab Report

An adaptation aids survival by either decreasing a prey’s chance of being eaten, or y increasing a predator’s chance of obtaining food to survive and reproduce. Predators must fight for food. They face density-independent factors which are factors that limit resources, but they cannot be controlled; an example would be bad weather or wildfires. Density-dependent…

Biology Lab Report Connective Tissue

Muscle tissue: It is in charge of the contractive action or movement of the body. It can be attached to bone, internal organs and blood vessels. Due to this contraction it performs other actions such as posture, joint stability and heat production. There are 3 types of muscle tissue. * Skeletal muscle: It is composed…

Lab Report on Shark

New technologies can only add to information we know about previously described species. Different kinds of animals have different body coverings. Marine vertebrates include 5 major groups based on observable features including body covering, among other characteristics: * Fish have skin covered with wet scales * Amphibians have bare skin that is usually moist or…

Biology Lab Report

Fungal and bacterial amylase are the enzymes that we going to study for their ability to break down starch. In order to determine how temperature affects the activity of amylase enzyme and the optimal temperature for fungal and bacterial amylase, the activity of these enzymes were tested at different temperature and times and iodine was…

Lab Report Digestion

These large molecules cannot cross last membranes intact to be absorbed from the lumen of the digestive tract into the blood or lymph; hence, it must undergo degradation in size (Sherwood, 2013). This degradation process is catcalled by hydrolysis enzymes, which split large molecules into smaller, observable units by combining with water. (Similarity, 2013) The…

Describe the role of Lipids in Living Organisms

Lipids are ‘a large and varied group of organic compounds, (3) ‘which are insoluble in water, but soluble in organic solvents such as ethanol and ether.’ (7). The molecules contain atoms of hydrogen, carbon and oxygen. ‘The ratio of hydrogen to oxygen atoms is always greater than 2:1.’ (2)’Triglycerides are fats and oils and are…

Transpiration Lab Report

When water is transported from the roots to the mesosphere cells in the leaves, it is evaporates out the stomata, called transpiration, to create a lower osmotic potential. Osmotic potential is the part of the water potential of a tissue that results from the presence of solute particles. Even though the stomata open to release…

Biology, Photosynthesis Lab Report

Costa Photosynthesis Lab Report Ms. Roach AP Biology 4th Period II. Intro/Background 1 . In order for oxygen to be present photosynthesis must occur. Photosynthesis takes in light and CO, and through a series of steps produces oxygen. Photosynthesis can be measured by either the disappearance of substrate or the accumulation of product. Examples include…

Algae Biology Lab Report

Theoretical Background: Plantlike Protests: – commonly referred to as algae – have organelles called chloroplasts which contain chlorophyll that help them carry out photosynthesis – are authors therefore they use photosynthesis for nourishment – there is 4 different phyla: solenoids, chromospheres, diatoms, and tintinnabulations – these algae can be given a variety of colors because…

Agar Cubes Lab Report

Diffusion in agar cubes Introduction: All cells are dependent on a processes called diffusion, which is the movement of a substance from an area of higher concentration to an area of lower concentration. Cells need to obtain certain essential substances, like oxygen, for their survival. The rate of diffusion is said to be dependent upon…

Genetics: Test Questions

Name: ________________________ Class: ___________________ Date: __________ ID: A Genetics test questions Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Pea plants were particularly well suited for use in Mendel’s breeding experiments for all of the following reasons except that a. peas show easily observed…

Bio 101 Week 4 Assignment

Organism Physiology: The Octopus Bio/101 The cephalopodor octopus is a marine organism that inhabits many diverse regions of the ocean. Its food source consists of crabs, small fish, clams, mussels and other marine animals. The octopus is a predatory animal and has developed many skills to aid in its survival in the environment it has…

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