Reproduction in plants

Take a look a the presentation!

 

Publicado en Senior 4 Biology 2017 | Deja un comentario

Respiratory system

This unit is divided into 3 topics:

respirstory system
1- The gas exchange system
2- Gas exchange
3- Breathing

How are we going to work?

Follow these instructions:

 

1 THE GAS EXCHANGE SYSTEM – Activity in the blog

By the end of this lesson you should be able to:

a- Identify in diagrams and name the larynx, trachea, bronchi, alveoli and associated capillaries.
b- Describe the structures named above.

2 BREATHING

a- Post a video which shows the breathing movements in humans.

b Complete comparison table in the book.

3 GAS EXCHANGE

a- Read pages 4, 5 and 6 from THIS WEB PAGE. Play all the animation.

b- Answer questio 2 from THIS WEBPAGE

DISEASES AND AFFECTIONS OF THE RESPIRATORY SYSTEM

a- Construct a mind map to explain the causes, effects in the body and treatment of asthma and emphysema.

b- Outline the effects of cigarrette smoking.

Finally! Complete the quiz on page 10.

Publicado en Senior 3 Biology 2017 | Deja un comentario

Human reproduction

The menstrual cycle

Watch the animation “All about menstruation”

 

Publicado en Senior 4 Biology 2017 | Deja un comentario

Infectious diseases: Pathogens

Read pages 1 to 10 from THIS WEBPAGE and follow the instructions below:

  • Revise the main features of each microorganism.
  • Make a large labelled drawing of an yeast cell.
  • Outline the importance of mechanical and chemical barriers in body defence.                       a- Briefly describe each of them.
  •     b- Play the animation shown  on page 8
  • Solve the quiz on page 10!
Publicado en Senior 3 Biology 2017 | Deja un comentario

Diarrhoea and Cholera

Watch THIS VIDEO and complete:

1- Name the microorganism that causes cholera.

2- State the signs/symptoms of the disease.

3- Explain ways in which cholera could be prevented.

 

Publicado en Senior 3 Biology 2017 | Deja un comentario

Human digestive system: Digestion, absorption and gut problems

Read pages 8 and 9 from THIS LINK and learn more about the human digestive system.

Play all the animation, answer the interactive questions and summarise the following problems in the digestive system:

  • Vomiting
  • Diarrhoea
  • Coeliac disease
Publicado en Senior 3 Biology 2017 | Deja un comentario

Homeostasis

Homeostasis is the maintenance of a constant internal environment.

Which factors should we keep the same?

 

CONTROL OF BODY TEMPERATURE

Check this link for  information!

Publicado en Senior 4 Biology 2017 | Deja un comentario

Enzymes

What are enzymes?

Watch this video!

Publicado en Senior 3 Biology 2017 | Deja un comentario

Chemicals of life: carbohydrates, proteins and lipids

 

Hi everyone!

Great mind map done in class. Congrats!

Take a look at the presentation!

 

Publicado en Senior 3 Biology 2017 | Deja un comentario

Excretion and kidneys

By the end of this lesson you should be able to:

  • State that urea is formed in the liver from excess amino acids
  • State that carbon dioxide is excreted through the lungs
  • State that the kidneys excrete urea and excess water and salts
  •  Explain that the volume and concentration of urine produced is affected by water intake, temperature and exercise
  •  Identify on drawings, diagrams and images, the ureters, bladder and urethra
  • Explain the need for excretion, limited to toxicity of urea and carbon dioxide
  • Outline the structure of the kidney, limited to the cortex, medulla and ureter
  • Outline the structure and functioning of a kidney tubule, including:                                              -the role of the glomerulus in the filtration from the blood of water, glucose, urea and salts
  •         – the role of the tubule in the reabsorption of all of the glucose, most of the water and some salts back into the blood, leading to the concentration of urea in the urine as well as loss of excess water and salts (details of these processes are not required)

Activities

  1. Read pages 1 and 2 from this site. Pay attention to the different structures of the urinary system
  2. Play this animation. Follow instructions to understand how kidneys work
  3. What happens to the different substances along the kidney tubules. Click on them to find out!
  4. Complete the revision exercises given in class.

Enjoy! 🙂

Publicado en Senior 4 Biology 2017, Uncategorized | Deja un comentario