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miércoles, 30 de noviembre de 2011

Digestive system

Wacht the video and then answer the questions.

Click Digestive System.


1.   What is mechanical digestion?
2.  What is chemical digestion?
3.   What kind of digestion occurs iny our mouth?. Explain your answer.
4.    Explain why the hydrochloric acid doesn’t hurt the wall of your stomach?
5.    How do we call the food in your mouth?
6.    How do we call the food in your stomach?
7.  How long is the small intestine?
8.    What is the name of the first part of the small intestine?
9.   What happens there?
10What are the villi?. What is their function?
11Why the large intestine is called “large” if it is shorter than the small intestine?
12 How long can the whole digestion process take?

jueves, 20 de octubre de 2011

Lysosomes

Learn about lysosomes and then answer the questions and send them to me in a message:http://glencoe.mcgraw-hill.com/olcweb/cgi/pluginpop.cgi?it=swf::550::400::/sites/dl/free/0078802849/592985/lysosomes.swf::lysosomes

1. What is the function of hydrolitic enzymes?
2. Wher do hydrolitic enzymes come from?
3. How are the hydrolitic enzymes transported to the Golgy apparatus?
What is a phafosome?

miércoles, 20 de julio de 2011

lunes, 6 de junio de 2011

martes, 15 de marzo de 2011

Relevant questions on nervous and endocrine system

1. Neuron and types of neurons
2. Parts of a neuron
3. Synapse
4. Elements of the nerve system
5. White and grey matter
6. Voluntary and involuntary acts
7. What is an endocrine gland?
8. What is an hormone?
9. Main glands and hormones
10. Control of rhe hormone action (Negative feedback): insuline an glicagon as an example.
11. Diabetes

lunes, 28 de febrero de 2011

Diabetes mellitus

Watch the video and fill in the blanks in the text




Diabetes mellitus

Diabetes type two is the most common form of ___a ____. Although it can occur at any age it is more common in people who are overweight, sedentary and over middle age.

___b____ is the main source of energy for body cells. When ____c___ levels rise, as is normal after a meal, the pancreas gland located behind the stomach secretes the ______d_________.

Insuline enters and circulates in the blood and acts in the insuline                            receptors present in _____e___, ____f____ and other tissues of the body. Binding of insuline to these receptors causes the glucose transporters to come to the cell surface. This facilitates the entry of glucose into these cells.

In diabetes type 2 the production of insuline is ____g__ and sometimes there may be resistant to insuline. The circulating insuline fails to facilitate the ______h________ into the cells and to keep the blood glucose level at optimum levels. This results in the rise of blood glucose levels.

The excess in blood glucose reacts with proteins in tissues to form what are known as Advanced Glucation End products or AGEs. AGEs create an inflammatory condition in the vasculator which causes ______i____ and damage to other organs such as the __j____ Diabetes can eventually cause damage to the heart, arteries, kidneys, nerves, eyes and skin.

lunes, 7 de febrero de 2011

Quiz on the neuron

Click on the image and you will be able to do a quiz on the neuron

                                                                                   
Once you have done the quiz send me a comment with the answers.

miércoles, 2 de febrero de 2011

The nervous system




Activities:

1. Watch the video an fill in the blanks in the text

 The human body nervous system
The nervous system: the _____a____, ______b____ and ____c____ is a living communications network carrying various kinds of messages to and from the different parts of your body. The nervous system is composed of nerve fibers that _________d_________ into your spinal cord and brain and the other _____e_____ that send the information out to different parts of your body.
The cells that make up the various parts of the nervous system are called ___f____. Each neuron has a neuron body, a part of the cell which contains a ____g___ and other structures, but a typical neuron has two other kinds of structures: long fibers that extend in different directions from the body of the cell, these fibers are often wrapped with a fatty substance called ___h____. Fibers that carry impulses toward the neuron body are called _____i_____.  Fibers that carry impulses away are called ____j_____. Different structures are concentrated in different parts of the body. Some neuron bodies are bound into clusters called ganglia, they are often associated with your ____k_____. The spinal cord is a long cylinder of ______l____ that passes through the hollow channels of bones called the _____m_____. The spinal cord is protected by those vertebrae. It is also protected by ______n_______ called meninges.

2.  Answer the questions:
     2.1. What is a neuron?
     2.2. What are the parts of a neuron?
     2.3 What are dendrites?
     2.4 What are axons?
     2.5 What is the spinal cord?

Send a comment with all the answers

Respiratory System

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