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Human Biology

Absorption Spectrum of Pigments

Compare and contrast the absorption spectrum of pigments of Cyanobacterium vs. the various purple bacteria. What wavelengths are preferentially absorbed by the pigments of each group of bacteria & how do the absorption properties of these molecules compare with the regions of the spectrum visible to our eye? How do they explain

Nutrition and dehydration

I need answers for the following questions: 1. Why is water essential to health maintenance? 2. What are the functions of water in the body? 3. What happens to the body when it does not get the water it needs? 4. Compare and contrast how different electrolytes - sodium, potassium, and chloride-function in the body. 5.

Punnett squares

Problem 1: Dalmatian dogs occur in two colors - normal black spots and bown (liver) spots. Assume that the black-spotted condition is dominant over the brown-spotted condition. Please determine the following: a) The letters you would use to identify the alleles for a black-spotted dog and the alleles for a brown-spotted

Polymerase chain reaction problem

I have using sterile technique, made up in an eppendorf tube the following: Sterile water 15 ul, primer 1 @ 30ng/ul, primer 2 @ 30 ng/ul, DNA Preparation (listeria or e.coli 5 ul), Mastermix 25 ul. I mixed the tubes and heated them, and carried out the elecrophoresis for staining to obtain a photograph. I need to

Anatomy/Physiology of Respiratory, Urinary System, Fluid and Electrolyte

1. The pharynx is common to what 2 systems? 2. What is the voice box? Of what is it composed? What is the Adam's apple? 3. Describe the structure and function of the trachea. 4. Describe respiratory physiology. 5. What is the main respiratory muscle? 6. List the principal and accessory organs of the urinary system

Agarose gel electrophoresis - why does my bp not add up?

Will be as brief as I can! - any help would be appreciated. used 3 lanes on my gel and ran in each: lane 1: hyperladder (linear fragments) lane 2: EcoR1 digested recombinant pUC18 (size of insert unknown) lane 3: undigested recombinant pUC18 plasmid Results obtained from gel and standard curve: lane 2: 2 bands app

Asthma as an epidemic in children

How is asthma affecting children and what is being done about it. a short cause and effect study in asthma and its ramifications with the children and the environment

Bioinformative Assignment - Diagnostic Restriction Digests

THE PROBLEM you have decided to study DNA repair and recombination in E.coli. your best buddy from graduate school sends you a clone of the recA gene. she has told you that the gene is included in 3.266 Kb Bam HI genomic fragment that she has cloned into the pBC vector. however, she has neveer checked the orient

Monod Kinetics

Bacteria used to degrade a contaminant in a bacth reactor are found to grown on the contaminant with Monod Kinetics. Assuming Umax (the max specific growth rate)=10 per day, and Ks (called half velocity constant)=5mg/L and Kd (the decay constant)=0.05 per day. At what value of S (the substrate concentration) will dX/dt=0. (X

Inheritance of dibetes mellitus

Hundreds of human diseases are characterized by a genetic component, such as familial breast cancer. These diseases may run in your family and can currently be tested for. Prepare a 200-word report for your own family members about the current state of knowledge on any such diseases and the tests available. Describe the disease,

Supporting or Refuting Taxing High-Fat Foods

In the United States, many states now impose taxes on tobacco to discourage smoking and to help offset the health costs associated with smoking. However, heart disease, which has been linked to a high-fat diet, is the country's number one killer. In addition, more cancer cases in the United States are related to diet than to smo

How do physical and chemical laws limit animal form?

Explain how physical and chemical laws affect a living organism. Also, provide an example of how an organism has evolved to adapt to its physical or chemical environment. Then, answer the following question: Why do you think physical and chemical laws relate functions to structures and vice versa?

Nutritional Caloric Content

In lab, you try burning marshmallows to estimate their caloric content. a) if a large marshmallow, when burned completely, raises the temperature of 1L of water 40 degrees, what is the approximately caloric content measured in nutritional calories (kcal or Cal)? b) how many calories would be required to raise 500g of water 3 de

Genetic Technology

One of the concerns mentioned in the chapter regarding the use of genetic technology centers around privacy issues such as "genetic discrimination." Once we improve our ability to screen the human genome for disease susceptibility, is there any level of testing that should be required by society as a means of reducing health car

Sport supplements are examined.

Companies that sell sport supplements make billions of dollars each year claiming by consuming their products the person can lose or gain weight. Assume the body weight is genetically determined and that any gain or loss in weight will cause the body to activate homeostatic mechanisms to cause the body to return to the original

Sickle-Cell Anemia

The text notes that an alternate allele of the hemoglobin gene can cause sickle-cell anemia when a person is homozygous for this allele, but that a person who is heterozygous for the allele actually can derive a benefit from it--protection from malaria. In the United States, 8 percent of African Americans are carriers for the si

Physiological changes occur during exercise

Many physiological changes occur during exercise. a. Design a controlled experiment to test the hypothesis that an exercise session causes short-term increases in heart rate and breathing rate in humans b. Explain how at least three organ systems are affected by this increased physical activity and discuss interactions among t

Physiological Changes

The human body manifests physiological changes in every organ system throughout the process of eating, from the time a person first anticipates food to the elimination of waste. a) design a controlled experiment where you test the hypothesis that the body's reaction to eating begins before food enters the body. b) descri

What must I do to live forever?

Introduction We know the features of our physical lives that determine they will be finite; they will die. Scripture clearly teaches that a small remnant of people with these bodies will be given new ones that cannot die. Perhaps you have imagined that these future bodies will be so "bionic" as to be unrecognizably amazing in

Categorizing groups of organisms

I have already categorized the following "Groups of Organisms," except for DOLPHINS. Where would it be placed in the problem below? bats monkeys Euglena lemurs sponges amphibians dolphins Ginkgo biloba jellyfish reptiles birds beavers echinoderms tarsiers photosynthetic bacteria a) production of mi

Function of the kidneys in blood pressure control

Evaluation: Blood Pressure Control Sometimes during traumatic injury, the kidneys must take action to regulate blood pressure in order for the individual to survive. When would this action necessary? Explain in detail how the kidneys regulate blood pressure. Some people have high blood pressure. How do the drugs (cal

Classification of Animals in general and humans in particular

Listed below are several characteristics that are used to classify animals in general and humans in particular: a) production of milk for the young (reproductive, physiological) b) high cognitive ability, to reason, to fashion tools (neurological) c) inability to generate carbohydrates by means of photosynthesis (metabolic)


You work in an orthopedic physician's office as a medical assistant and are responsible for filling out insurance forms and following through on denials. You have become friendly with an insurance company representative in the office of an insurance company with whom you regularly submit claims. You are finding that many of th

This job reacts to human evolution.

This job considers the following statements about human evolution. Which are well supported by scientific evidence and which are misconceptions? a. Humans evolved from apes. b. Human evolutionary history is more like a multibranched bush rather than a single unbranched ladder, our species being the tip of one human branch th

Describe the relative shape of three fatty acids.

Since you forgot to label the fatty acid and the only experimental apparatus you have is a freezer how could you tell which one is which, explain? You have three fatty acid in your kitchen but you forgot to label them. They are all the same length (they all have 20 carbons each)One is a saturated fatty acid, the other two yo