Port Said International Schools
Better Education for Future Generations
final Q.B
Grade: 4
Date:17-3-2015
1) Complete the following sentences:
1. A......................... is a group of similar cells in structure and function.
2. From the functions of the large intestine are..........................
And...............................
3. Pharynx is a common cavity that leads to..........................
And.............................
4. ............................... Are located inside the thoracic cavity and
surrounded by...............................
5. ........................ Is separating between thoracic cavity and abdominal
cavity.
6. The organ of the body of the living organism is formed
from..............................
7. Each tissue is formed from identical units of..........................
8.
Digested food is absorbed in the...............................
9. The number of respiration times increases in ............................ case.
10. The total number of teeth in adult is ...................... in each jaw.
11. The air sacs are surrounded by a network of ...................... where gas
exchange occurs.
12. Salivary glands are .................. pairs, and secrete a liquid known
as...................
13. Diaphragm moves ...................... during inhalation and moves
........................ during exhalation.
14. Digested food is absorbed in the .............................
15. Starch digestion starts by the ..........................
16. Gastric juice digests .................................
17. Saliva digests ................................
18. Bile helps to digest ..............................
19. Protein digestion starts in .......................................
20. Starch digestion starts in .............................
21. Fat digestion starts in .............................
22. .............................. muscle helps the mechanism of respiration.
Port Said International Schools
Better Education for Future Generations
final Q.B
Grade: 4
Date:17-3-2015
23. Exchange of gases occurs in alveoli between ......................... and
.......................
24. Air enters into the lungs during the process of ........................ and
leaves them during the process of .........................
25. . The building unit of a living organism is called …………………
26. . Small intestine is divided into …………………and …………………
27. Plant cells are characterized from animal cells by the presence of
…………….. and………... .
28. . ………………………, ……………………..and …………………………… are the
digestive canal supplementary.
29. 5. ........................ is separating between thoracic cavity and
abdominal cavity.
I.
What is the role (function) of:
1. Bile juice in digestion: helps to digest fats into fatty emulsion.
2. Diaphragm in mechanism of respiration: moves down during inhalation
to let the air enter the lungs, and moves up during exhalation to push
the air out of the lungs.
3. Green plastids: absorb light energy necessary for photosynthesis.
4. Pancreas: secretes pancreatic juice sugars.
5. Battery in the electric circuit: the source of electric current.
6. Alveoli (air sacs): gas exchange.
7. The digestive system: digests & absorbs food.
8. The respiratory system: carries out the process of breathing.
9. The circulatory system: transports digested food & oxygen to all the
body parts.
10. The urinary system: helps the body to get rid of harmful wastes.
11. The nervous system: helps us to feel, hear, see, smell & taste.
12. The reproductive system: makes us give birth for new individuals,
look like us.
13. The mouth:
- The food enters the digestive system through it.
Port Said International Schools
Better Education for Future Generations
final Q.B
Grade: 4
Date:17-3-2015
- Food is chewed in it.
- Starch changes to sugar by saliva inside it.
14. The teeth: cut, tear & grind the food before swallowing.
15. The tongue: turns food in the mouth & mixes it with saliva to help in
swallowing & digesting starch.
16. Salivary glands: produce saliva which digests starch into sugar.
17. Oesophagus: food travels through it from the mouth to the stomach.
18. Stomach: mix food with digestive enzymes, incomplete digestion of
proteins occurs inside it by gastric juice.
19. Small intestine: food is completely digested & absorbed in it.
20. Liver: produces bile juice that helps to digest fats.
21. Large intestine:
- Water is absorbed in the rectum.
- Food remains are ejected outside the body through anus.
22. The nose: it contains hair& mucus to filter the air from dust &
microbes before entering the lungs, the blood capillaries warm the air
as it passes through.
23. Pharynx: allow air & food to pass to the oesophagus & trachea.
24. Trachea: air passes through it to the lungs.
25. Lungs: gas exchange occurs through it.
26. Diaphragm: separates the thoracic cavity from the abdominal cavity,
helps in respiration.
27. Alveoli: allow gases’ exchange through its walls.
28. Bronchus: carries air into the lungs.
29. Nucleus: organizes the cell operations & it is in charge of cell division.
30. Cytoplasm: fill the space inside the cell & biological operations are
acted by it.
31. Plasma membrane: surrounds the cell & controls the substances
entering & closing the cell.
32. Chloroplasts: absorb sun light to make food during photosynthesis.
II.
Port Said International Schools
Better Education for Future Generations
final Q.B
Grade: 4
Date:17-3-2015
III.
Give reasons for the following:
1. It is preferred to breathe through nose and not through mouth.
- Because the nose contains hair and mucus that filter the air from
dust and microbes, blood capillaries that warm the air before it
enters the lungs. While, the mouth doesn’t.
2. Teeth are formed from incisors, canines and molars.
- Because incisors and canines cut and tear the food, while molar grind
it before swallowing.
3. It is preferred for human to skip being in crowded places.
- To have enough oxygen for respiration and avoid thoracic diseases.
4. Eating orange and guava is important.
- Because they contain vitamin C, which protects the human body
from getting common cold.
5. Green plants are called producers.
- Because they can make their food by themselves.
6. Nose has blood capillaries.
- To warm the air before entering the lungs.
7. Liver helps in digestion of fats.
- Because it produces bile which helps to digest fats.
8-. Digestion process is very important
Because it breaks down food from complex form in to simple form to let, the
body get benefit.
Write the word(s) that means each of the following statements.
1. The organ that mixes food with saliva. (Tongue)
2. The organ that closes trachea during swallowing. (Epiglottis)
3. The organ that secretes bile juice. (Liver)
4. It separates between thoracic cavity and abdominal cavity.
(Diaphragm)
5. The respiratory tube that is supported by incomplete cartilaginous
rings that keeps it permanently open. (Trachea)
Port Said International Schools
Better Education for Future Generations
final Q.B
Grade: 4
Date:17-3-2015
6. A part of the small intestine where the digested food is absorbed.
(Ileum)
7. The gas which is necessary for respiration and burning of fuel. (Oxygen)
8. A juice helping in digestion of fats and changing it into fatty emulsion.
(Bile juice)
9. Living organisms depend on themselves for making their food.
(Producers)
10. A process by which oxygen enter the lungs. (Inhalation)
11. The building unit of the living organism body. (The cell)
12. The organ where starches are digested in.
13. A liquid secreted in the mouth and helps in starches’ digestion.
14. A juice is secreted from the liver and affects fats digestion
15. The organ that mixes food with saliva.
16. The process of changing food from a complex form into simple
substances to let the body get benefit from them.
17. The system that distributes in the digested food and oxygen gas all
over the body cells.
18. The teeth that grind food to make the swallowing easy.
19. The organ that is responsible for the food tasting.
20. The organ at which the gastric juice is secreted.
21. The part of the digestive system at which the intestinal juice is
poured.
22. The part of the digestive system at which the water from the food
remains is absorbed.
23. The juice that makes an incomplete digestion of proteins.
24. The common cavity between oesophagus and trachea.
25. The process in which air rich in oxygen gas enters the two lungs and
air rich in carbon dioxide gas and water vapour is released outside the
two lungs
Port Said International Schools
Better Education for Future Generations
final Q.B
Grade: 4
Date:17-3-2015
26. A gas produced from the respiration process and turns clear lime
water into turbid.
27. The organ that is lined with mucus, hair and blood capillaries.
28. The common cavity between the digestive system and the
respiratory system.
29. The respiratory tube that is supported by incomplete cartilaginous
rings.
30. The air that contains carbon dioxide gas and water vapour.
31. The air sacs are found inside the two lungs.
32. A common cavity between the digestive system and respiratory
system
33. It closes the trachea during swallowing of food.
34. Living organisms that can make their own food by the photosynthesis
process.
35. A part of the small intestine that is connected to the stomach.
36. A common cavity between the respiratory and the digestive systems.
37. The building unit of any body.
38. A process in which diaphragm muscle contracts and moves down and
ribs rise up.
39.
put ( \
1)
2)
3)
4)
5)
6)
7)
8)
) and ( x ) and correct the (x) statement :
The respiratory system exists in the thoracic cavity .
(
)
Air enters lungs during the inhalation process.
(
)
Trachea contains cartilaginous ring .
(
)
Alveoli are found in trachea.
(
)
Larynx is the voice box.
(
)
In the inhalation process. The diaphragm muscles contracts. (
)
Gases exchange takes place in trachea.
(
)
The lime water is used to detect the presence of carbon dioxide gas.
(
)
Port Said International Schools
Better Education for Future Generations
final Q.B
Grade: 4
Date:17-3-2015
9) To keep the respiratory system healthy. We should eat fruits rich in
vitamin (c).
(
)
Gases exchange takes place between alveoli and blood capillaries.
1. Gases exchange takes place between alveoli and blood capillaries. (
)
2. In the inhalation process. The diaphragm muscles contracts.
(
)
3. Saliva digests protein.
(
)
4. Bile juice helps the digestion of fats.
(
)
5. cell wall supports the cell and gives it a definite shape.
(
)
(
)
1) Write the scientific term for each of the following:
1) It is the process by which the human obtain energy from digested food.
( ………………………)
2) The required gas for respiration process.
( ………………………)
3) A gas that is produced in the exhalation process and turns clear lime
water milky.
( ………………………)
4) A common path between esophagus and trachea. ( ………………………)
5) An organ found at the top of trachea and called the voice box.
( ………………………)
6) A process by which oxygen gas enters the lungs. ( ………………………)
7) A process by which carbon dioxide gas and water vapor are expelled
outside the body.
( ………………………)
8) A muscular membrane that separates the thoracic cavity from the
abdominal cavity.
( ………………………)
9) The gas that turns the clear lime milky.
( ………………………)
10) A common path between esophagus and trachea.
………………………….
11) A gas that is produced in the exhalation process and turns clear lime
water milky.
……………………….
12) The organ that secretes bile juice
…………………………..
Port Said International Schools
Better Education for Future Generations
13)
final Q.B
Grade: 4
Date:17-3-2015
A fluid fills the cell, where the biological processes occur.
…………………………..
14) The unicellular organism that is used in making bread.
…………………………..
2) Give the reason of the following:
1) The respiration process is very important .
because it gives the body energy for all activities.
2) Nose is lined with hair and mucus layer.
To filter the air from dust and microbes.
3) Nose has blood capillaries .
To worm air before entering the lungs.
4) Breathing through nose is lined with hair and mucus layer.
Because the nose is lined with hair and mucus layer To filter the air
from microbes and dust.
Blood capillaries to warm the air before enter to the lung.
5) The trachea has incomplete cartilaginous rings in its wall.
To let it open all the time for breathing.
6) The trachea is lined with cilia.
To eject up the strange object as dust.
7) Food doesn't enter the respiratory system during swallowing of food.
due to the presence of epilogist that case the trachea during
swallowing.
8) The exhaled air turns clear lime water milky.
because it contains carbon dioxide gas.
9) Alveoli and blood capillaries have thin wall.
to allow gas exchange.
____________________________________________________
Port Said International Schools
Better Education for Future Generations
final Q.B
Grade: 4
Date:17-3-2015
Choose:
1- In the respiratory system, gas exchange process takes place in the
…………….
(a) trachea.
(b)nose.
(c) air sacs.
(d)two bronchi
2- Which of the following is considered as an organ ……………………
(a) yeast fungus
(b) heart
(c) epidermis of onion plant (d) bean plant.
3- All the following living organisms are producers except……………………..
(a) green algae.
(b) maize plant
(c) bread mould.
(d) wheat plant
4. …………………….. is responsible for the cell division and organizes the biological
operation in the cell.
(a) Sap vacuole
(b) Nucleus
(c) Cytoplasm
(d) Plasma membrane
5 -The number of teeth is ………………………… in the adult person.
(a)30
(b)32
(c )16
(c)34
Port Said International Schools
Better Education for Future Generations
Label
final Q.B
Grade: 4
Date:17-3-2015