BIOLOGY HSC NOTES MAINTAINING A BALANCE •Identify the role of enzymes in metabolism, describe their chemical composition and use a simple model to describe their specificity on substrates. Enzymes are protein molecules that allow the body to engage in chemical reactions, such as metabolism. There …
Unit 8 Study Guide 1. How many liters of blood does the average adult have? 5 Liters 2. What are the components of blood? Red blood cells, white blood cells, platelets, and plasma. 3. What does the hematocrit measure? The number of cells or volume. …
Have you saved somebody’s life lately? Did you know that you can help three people who struggle to survive by giving an hour of your day? I wasn’t aware of how many people I can help until there was a blood drive at my high …
The tall grass prairie is an ecosystem native to central North America, with fire as its primary periodic disturbance. In the past, tall grass prairies covered a large portion of the American Midwest, just east of the Great Plains, and portions of the Canadian Prairies. …
Huntington’s disease is an autosomal dominant (Harper et al, 1991) neurodegenerative disorder characterized by involuntary movements, cognitive loss, and psychiatric problems as described by Martin and Gusella (1986). These symptoms are related to the death of medium spiny projection neurons in the caudate nucleus, putamen, …
The Pleistocene occurred from about 1.8 million years ago up to 10,000 years ago. During this time frame, early man as well as all species living on Earth at the time was subject to extreme climatic changes which may have shaped their evolution. The late …
Glutathione (GSH) is a tripeptide that contains an unusual peptide linkage between the amine group of cysteine (which is attached by normal peptide linkage to a glycine) and the carboxyl group of the glutamate side-chain. It is an antioxidant, preventing damage to important cellular components …
Frederick Griffith, a bacteriologist, was trying to prepare a vaccine against the pneumonia-causing bacterium, S. pneumoniae. A vaccine is a substance that is prepared from killed or weakened microorganisms and is introduced into the body to protect the body against future infections by the microorganisms. …
Type 1 diabetes is a lifelong (chronic) disease in which there are high levels of sugar (glucose) in the blood. Type I Diabetes is usually diagnosed in children and young adults. It was previously known as juvenile diabetes. Type I diabetes is usually caused by …
Why are sexually transmitted diseases more likely to affect females to a greater extent than males? Sexually transmitted diseases are more likely to affect females to a greater extent than males because they expose a greater surface area of mucous membrane during sexual contact. Why …
The concept investigated was observing the various characteristics of organisms and classifying each of them into specific groups of organisms. This concept will help lead to answering the guiding question: How should the unknown organism be classified? because the unknown organism can be classified based …
Exam 1 Introduction to Anatomy What is the definition of anatomy? What is the definition of physiology? What is homeostasis? What are the two ways in which homeostasis is maintained? What are the directional terms used to find things in the body? For example, what …
Polyhydroxybutyrate PHB Polyhydroxybutyrate (PHB) is a polyhydroxyalkanoate (PHA), a polymer belonging to the polyesters class. Progress Analysis: – Bacteria first used to make PHB in 1925 at Pastuer Institute in Paris. – In 1970’s adopted by Imperial Chemical Industries (ICI) – Alcaligenes Eutrophus grown in …
You recorded the data in Chart 1 on page 35. E the data to produce a Graph that will clearly show how the effects Ion the resting membrane potential when the KEF concentration of Is high and when the KEF concentration of An+ is low. …
The Genographic Project I. INTRODUCTION A. (attention grabber): Everyone here probably knows what ethnicity you are, where your immediate family came from, or maybe can even trace your great-great grandparents. But what if I told you that you can find out where your ancestors came …
Abstract: Cancer arises due to abnormal changes or mutations, in the genes responsible for regulating the growth of cells. Human papillomavirus (HPV) is considered the aetiological agent for many cancers including cervical cancer. HPV causes disruption and loss of some of the viral genes such …
The disorder I chose to do is called Porphyria. It can cause red bloches on the skin. It can also severely affect the nervous system. Ichose this disorder because it had a name similar to Porpise. Porphyria is a group of disorders caused by abnormalities …
An article appearing on the ScienceDaily website entitled “Olives may be rescued by Helpful Wasp” reported the findings of the research headed by Victoria Yokoyama concerning the effects of releasing a small brown wasp known as Psyttalia cf. concolor into olive fruit fly infested groves …
Experiment 6- The Pathways of Plant Water Movement Aim: To investigate the movement of materials in xylem Materials: ?Fresh celery stalk with leaves ?Eosin solution (1%) ?A plastic container with tap water ?A sharp scalpel ?Hand lens ?A light microscope ?Two glass slides ?A cover …
Chemotherapeutic Agents of Control: Introduction: Chemotherapeutic agents are chemical substances used to treat various forms of infectious diseases. The chemotherapeutic agent works by stopping the bacteria from reproducing. There are two different kinds of chemotherapeutic agents. The first kind is an antibiotic, which slow down …
There is not much use for the lungs during the fetal life. At such stage, the function of the lungs is carried out by the placenta through the umbilical cord. Fetal life is characterized by a high pulmonary vascular resistance (PVR) with pulmonary blood flow …
The cell is the biological basic unit to life .Every existing animal or plant owes its life to the cell. Cells cannot be seen with naked eyes but with the help of equipment called the microscope. It is the environment that surrounds different, other existences …
By 2 years, Dj responded to auditor cues more than ocular 1s. He no longer could keep up his caput or perform simple activities such as turning the pages of a book. Nystagmus and a “cherry ruddy” were noticed by the pediatric eye doctor by …
Somatropin is a hormone naturally released by the Anterior Pituitary gland. Its release is mediated by the releasing hormone produced by the Hypothalamus, Growth Hormone releasing factor. Somatropin is a peptide hormone. It promotes normal body growth and lactation. (more…)
In the United States, about 185,000 cases of pancreatitis are reported each year. Pancreatitis affects people of all ages, however, the mortality rate that is associated with pancreatitis tends to be higher for people in older age. The mortality rate of patients with pancreatitis ranges …
Fiber is categorized into soluble and indissoluble fibre. Soluble fibre includes pectins, mucilages, gums, and storage polyoses. Soluble fibre has shown to hold positive effects on glucose metamorphosis that are partially attributed to the increased viscousness of luminal contents. It causes delayed gastric voidance, which …
After the ingestion of the alcohol by the man, it passes from the stomach then to the intestines and into the blood stream in a process called absorption. This alcohol is then broken down by body chemicals called enzymes. In this case alcohol is converted …
Biology – pattern in nature Organisms are made of cells that have similar structural characteristics. Outline the Historical development of the cell theory, in particular, the contributions of Robert Hooke and Robert Brown. 1665 – English scientist Robert Hooke used microscope to examine thin slices …
Medical history has been filled with an array of diseases and illnesses, ranging from the common cold to deadly killers. Some are easily treatable and others can be terminal, but some of the worst are those that still remain without a cure; one such disease …
The tegument is the largest organ of the human organic structure. It protects us from heat, sunshine, hurt to the internal organic structure and infections. There are 3 types of tegument malignant neoplastic diseases; there is Basal cell, Squamous cell, and Malignant Melanoma. Malignant melanoma …
Biology is defined as the study of life while psychology examines the human mind and its processes, especially those affecting behavior. Biological perspective links biology and psychology by focusing on the analysis of human behavior based on biological and physical evidence.
Why is biology important? As a field of science, biology helps us understand the living world and the ways its many species (including humans) function, evolve, and interact. Advances in medicine, agriculture, biotechnology, and many other areas of biology have brought improvements in the quality of life.
Chemical biology deals with how chemistry can be applied to solve biological problems while biochemistry is the study of the chemistry of biology. In general, the chemical biology major focuses on small molecules while the biochemistry major focuses on proteins and nucleic acids.
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