ASU BIO 100 EXAM 3 PRACTICE QUESTIONS - SPRING 2016
1. Compare and contrast how positive and negative feedback mechanisms are used to maintain homeostasis. Use these concepts to describe:
* The maintenance of blood glucose levels
* The release of platelets to form blood clots.
2. What does it mean if an organism is an ectotherm? Endotherm? Give an example of each.
3. Describe the primary functions of each type of body tissue and give examples of each.
4. Herbivorous mammals tend to have extremely long digestive systems, especially the intestines; omnivores have intermediate length intestines; and carnivores have extremely short intestines. What might be a logical explanation for this pattern?
5.
…show more content…
12. Both the nervous system and the endocrine system are used to convey messages throughout the body and coordinate organs, systems, and behavior. Compare and contrast how these two systems function.
13. Identify the cellular components of blood, their functions and where they are produced in the body.
14. What is hemoglobin, where is it found, and what does it do?
15. Emphysema can be a serious disease, but it damages not only your lungs but often the heart. Why does a respiratory disease also affect the circulatory system?
16. You have become a member of a hot shot Criminal Investigative Team in the Phoenix police department. You are asked to lead your first murder investigation, but the only clues are old blood spots of the victim found near his body and blood on the clothes of a suspect. Because the main suspect is about ready to leave the country, you are asked to at least provide preliminary evidence that the blood found on his shirt could match that found at the crime scene so an arrest warrant can be issued quickly. You amaze your colleagues by simply looking through a microscope and determining from the nuclei of the red blood cells on the suspect’s shirt that, based on this evidence, he is unlikely to be guilty. How could you be so sure of this conclusion?
17. Describe the structure of a neuron and how it transmits a nerve impulse.
18. A pharmaceutical company is
C. Describe and explain the differences in CELL composition between the 3 primary body fluids: blood, intercellular (AKA interstitial) fluid, lymph.
Homeostasis is a characteristic of life in which all Living things maintain. some of the traits of Homeostasis are perspiration and some form of breathing and other natural body functions. An example of a negative feedback mechanism is a Thermostat If the heat is turned on and is set at 80 degrees the heat is turned on, If the temperature drops below 80 degrees, After the heater heats the house to 80 degrees, it shuts off keeping the desired temperature. An example of a positive feedback system is when a baby is born. while the mother is in labor, a hormone is released that boosts and quickens her contractions. The more contractions causes more of that Hormone to be let out and it continues to goes on until the
• *Describe the 3 main types of cells and the 3 main types of fibers found in connective tissue? Reference Table 5.6.
2. Explain your observations in detail in terms of concentration gradient, diffusion, osmosis, osmotic pressure, passive transport, and active transport.
Emphysema can affect others parts of the body which lead to others disease. The patient who has emphysema may get
In this assignment I’m going to talk about the structure of the main tissues which are found within the body as well as what their role is in the terms of two named organs of the body. Tissues are a collection of similar cells that group together to carry out a specific function within the body. There are four different types of tissue found in the human body which include; epithelial tissue; connective tissue; muscle tissue and nerve tissue.
There are many events known to increase blood pressure, including exercise, getting excited or frightened etc., which is the pressure of blood on the walls of blood vessels, measured in systolic and diastolic pressure (mmHg), and heart rate, which is the rate of the relaxation and contraction phases of the heart (BPM). (Weedman 2015.) Whether it be scary movies, extensive exercise, or as researchers conducted in one experiment, they related increased blood pressure and heart rate to air travel and air pressure, and those being one of the main reasons medical emergencies on airplanes occur.
The nervous system uses sensory receptors, nerves and your brain to control your cells, and acts quickly. The endocrine system uses your circulatory system and hormones to care for your cells and acts more slowly. The reproductive system and endocrine systems use hormones to function. The nervous and endocrine systems are connected by sending information to the hypothalamus and uses the autonomic nervous system to transmit what activity needs to take place in the body. This activity might be what hormones are needed, or what sensations the body feels. While the nervous and endocrine systems send information to the hypothalamus, the reproductive system receives information from the hypothalamus. So all three systems do work together, although
The organisation of the body is cell, tissue, organ, system and within the body there are many types of tissues. The four main tissues within the body are: epithelial, connective, muscle and nervous tissue. Tissue is a group of cells which are similar to one another and carry out specific functions. In this report detailed explanations of the four main tissue types and where they can be located within the body.
- Molecular study (How does your organism carry out its life functions? Nutrition, transport, growth, synthesis, respiration, regulation, metabolic processes, etc.)
The definition of homeostasis is to maintain equilibrium of its inner body when dealing with outside changes. Homeostasis is like a firefighter stands by at the fire station waiting for emergency to happen and when it does he will be ready to take off and go into action to help save and restore the on fire buildings. A negative feedback loop is if something went wrong, beyond/below its normal range, human body will corrects it and changes the variable back to its original state. For instance, your sugar level rises when you eat. The brain sends messages to the pancreas to release insulin to transport blood sugar to the cells that need them. When blood sugar returns to normal ranges, the receptors send this information to the brain and the brain
Click on the Loyola University/ Part 6: Nervous Tissue. For each of the following terms, find at least one example slide containing the term. Identify the slide by number and define the term in your own words.
Tissues are groups of cells with a common structure and function. There are four main tissues in the body which are epithelium, muscle, connective tissue and nervous tissue. Epithelium functions are It protects us from the outside world. For example, the skin, absorbs the stomach and gut, filters the kidney, and forms glands traits. It closely attached to each other forming a protective barrier, has no blood vessels but can soak up nutrients from blood vessels in connective tissue underneath, can have lots of nerves in it, very good at regenerating for example fixing a sunburn or skinned knee. There are different types of epithelium by shape and cell. The shapes are squamous, cuboidal, and columnar. By cell there is simple and stratified epithelium.
The Reproductive, Endocrine, and Nervous System all play a part in keeping our bodies functioning properly. The Endocrine system has a system of glands that secrets hormones throughout our body immediately into the blood stream. Most of these hormones are there for specific organs within each part of our body. The system also is vital to maintaining homeostasis. The Endocrine system secrets hormones such as estrogen and testosterone; these hormones are responsible for the sexual characteristics of males and females and help regulates sperm production for males and the menstrual cycle for females. These play an enormous role in the Reproductive system. The Endocrine also secrets helps the nervous system. The Hypothalamus is responsible for the
The nervous and endocrine systems are what control most of the body. The nervous system includes the brain, spinal, cord and nerves. The endocrine system consists of various hormonal glands such as the pituitary. These two systems interact closely since they both have a part in controlling