Human and Social Biology Form 4

WEEK: June 1 to June 5, 2020

Human and Social Biology Form 3

WEEK: June 1 to June 5

Topic: Nutrition

Use your notes to assist you in answering the following questions:

1.     List the three types of saccharide.

2.     Give one example of each type of saccharide.

3.     What are proteins made up of?

4.     What makes up a fat (lipid)?

5.     Name one food each that is rich in:

i.                 Protein

ii.               Starch

iii.             Fat

iv.             Vitamin A

v.               Iron

6.     Which vitamins are:

i.                 Fat-soluble

ii.               Water-soluble

Human and Social Biology Form 4

WEEK: May 25 to May 29

Please complete the following worksheet on the Circulatory System:

Human and Social Biology Form 3

WEEK: May 25 to May 29
Answer the questions in the following document. You may submit via email (leonabel8@gmail.com) or Edmodo (code = jew2qh)

Human and Social Biology Form 3

Form 3 HUMAN AND SOCIAL BIOLOGY Trinity            WEEK: May 18 – 22

Teacher: Leon Abel                                                                  Email: leonabel8@gmail.com

Topic: Nutrient Cycles – Answer ALL the following questions:

1.     State then explain the effect that each of the following has on the concentration of carbon dioxide in the atmosphere.

a.      the burning of fossil fuels

b.     an increase in the rate of photosynthesis of plants

c.      a shift from the use of coal to the use of nuclear power in power stations.

2.     Name two harmful gases that are released by burning fossil fuels.

3.     Suggest two ways in which global warming might be halted or even reversed.

4.     Apart from protein, name one other important molecule in the body that contains nitrogen.

5.     Sugar cane is a crop that is harvested and removed from the field. Why do farmers need to add fertilizers to the soil?

You may use the following video to assist you:

Human and Social Biology Form 4

Form 4 HUMAN AND SOCIAL BIOLOGY Trinity    WEEK: May 18 to May 22

Teacher: Leon Abel                               Email: leonabel8@gmail.com

Circulatory System Part 2, The Heart – Answer ALL of the following questions:

1.     What happens to:

a.      the volume in the ventricles when the ventricles contract and the atria relax

b.     the pressure in the ventricles when the ventricles contract and the atria relax

2.     What is the role of the:

a.      Bicuspid valves

b.     Tricuspid valves

3.     What is the role of the semi-lunar valves?

4.     Suggest why the left ventricle of the heart is thicker than the right ventricle.

5.     Suggest why the walls of the atria are much thinner than those of the ventricles.

6.     What type of blood vessel is:

a.      the aorta

b.     the vena cava

7.     What term is used for the:

a.      contraction of heart (cardiac) muscle

b.     the relaxation of heart (cardiac) muscle

Human and Social Biology Form 3

Form 3 HUMAN AND SOCIAL BIOLOGY Trinity

Teacher: Leon Abel                          Email: leonabel8@gmail.com

Week 3 Topic: Photosynthesis and Feeding Connections – Answer ALL the following questions:

1.     Write out the word and chemical equations for photosynthesis.

2.     Identify the raw materials, source of energy and product of photosynthesis.

3.     What is the function of chlorophyll in plants?

4.     Describe the relationship between carbon dioxide concentration and the rate of photosynthesis.

5.     Why does the rate of photosynthesis decrease at high temperatures?

6.     Explain why the rate of photosynthesis does not increase at high light intensities.

7.     Use the organisms in the bracket to answer the following questions – (Bird, frog, butterfly, fly, rat, peanut, flowers, snake)

a.      Draw a simplified food web

b.     State the trophic levels (producer, consumer et cetera) of each organism in the food web

c.      Draw TWO (2) different food chains, each of which have different organisms

Human and Social Biology Form 3

Form 3 HUMAN AND SOCIAL BIOLOGY Trinity

Week 3 Topic: Diffusion, Osmosis and Active Transport – Answer ALL the following questions:

1.     Suggest why diffusion through cell surface membranes is said to be passive process.

2.     Blood consists of blood cells and a liquid portion known as plasma. Both components of the blood may be concentrated or dilute with various substances at any given point in time.

a.      Define the term concentrated.

b.     Define the term dilute

c.      Which would be more harmful – our blood plasma becoming more dilute or more concentrated than our red blood cells?

3.     Make a table to compare the processes of diffusion and osmosis.

4.     Explain why energy is needed for active transport.

Human and Social Biology Form 3

Form 3 HUMAN AND SOCIAL BIOLOGY Trinity

Week 2

Answer ALL the following questions:

1.     List THREE (3) WAYS in which an animal cell and a plant cell are:

a.      Similar to each other

b.     Different to each other

2.     List FIVE (5) organelles and give their functions

3.     Identify THREE (3) objects in your living environment and classify them as living or non-living – give reason for your answer.

4.     Arrange the following words so they represent cell specialization from smallest unit to largest unit of the human body: organ, cell, tissue, system

Human and Social Biology Form 4

Form 4 HUMAN AND SOCIAL BIOLOGY Trinity (May 11 to May 15)

Teacher: Leon Abel                               Email: leonabel8@gmail.com

Week 4 Topic: Circulatory System – Answer ALL of the following questions:

1.     By which process will the oxygen move from the lungs to the red blood cells?

2.     How are the following carried in the blood:

a.      Glucose

b.     Oxygen

3.     Why DON’T single cell organisms need a circulatory system?

4.     State THREE functions of blood.

5.     What substance carries oxygen in red blood cells?

6.     What do lymphocytes produce?

7.     List THREE (3) major substances involved in the clotting process.

8.     State THREE (3) ways in which a red blood cell is adapted to its function.

Human and Social Biology Form 4

Form 4 HUMAN AND SOCIAL BIOLOGY Trinity

Week 3 Topic: Respiratory System – Answer ALL of the following questions:

1.     Write an argument for OR against cigarette smoking. In your argument include:

a.      A brief description of TWO (2) benefits/harms of cigarette smoking

b.     Reasons why the benefits out-weigh the harms OR why the harms out-weigh the benefits

c.      At least TWO (2) pieces of statistics or general information to support your point of view on cigarette smoking.  State the source of your information.

2.     State FOUR (4) factors that will affect your breathing rate.

3.     Identify THREE (3) substances in cigarettes that can affect a person’s health and state how they affect the person’s health.

Human and Social Biology Form 4

Form 4 HUMAN AND SOCIAL BIOLOGY Trinity Week 2

Answer ALL of the following questions:

1.     What does ATP stand for?

2.     Where is most ATP produced in the cell?

3.     State TWO (2) uses of energy in the body.

4.     What is the waste product of anaerobic respiration in a human?

5.     What are the waste products of anaerobic respiration in yeast cells?

6.     List the parts of the breathing system in order starting from the nose.

7.     What is the role of the cartilage in the trachea?

8.     What is the difference between gas exchange and breathing?

9.     Where does gas exchange occur?