Unit 9 – Transport

Question 1 of 20

1. Question

In most plants, food is transported in the form of:

Glucose
Sucrose
Starch
Proteins

Question 2 of 20

2. Question

Stomata close when guard cells:

Lose water
Gain chloride ions
Become turgid
Gain potassium ions

Question 3 of 20

3. Question

Trace the pathway of water from soil through the plant to atmosphere.

Endodermis, cortex, epidermis, xylem, intercellular spaces in mesophyll, stomata
Epidermis, endodermis, phloem, cortex of leaf, intercellular spaces of mesophyll, stomata
Root hairs, epidermis, cortex, xylem, endodermis, intercellular in mesophyll, stomata
Root hairs, cortex, endodermis, xylem, intercellular spaces in mesophyll, stomata

Question 4 of 20

4. Question

When fibrinogen makes blood clot it separates from blood and the remainder is called:

Plasma
Lymph
Serum
Puss

Question 5 of 20

5. Question

What is correct about human red blood cells?

Have limited life span
Are capable of phagocytosis
Produce antibodies
Are multinucleate

Question 6 of 20

6. Question

Which of the following tissue layer is found in all blood vessels?

Smooth
Endothelium
Skeletal muscle
Connective tissue

Question 7 of 20

7. Question

When do the atria contract?

Before diastole
After systole
During diastole
During systole

Question 8 of 20

8. Question

Which of the following contains deoxygenated blood in an adult human?

Left atrium
Pulmonary artery
Pulmonary vein
All of the above

Question 9 of 20

9. Question

Which of the following chambers has the thickest walls in human heart?

Right atrium
Left atrium
Left ventricle
Right ventricle

Question 10 of 20

10. Question

Which of these statements is correct about circulatory system?

It transports hormones
Capillaries have thicker walls than-veins
Systemic circulation carries blood to and from the lungs
All are true

Question 11 of 20

11. Question

Exchange of materials between blood and surrounding tissues occurs in:

Arteries
Veins
Capillaries
All of the above

Question 12 of 20

12. Question

Which of the following is a type of leukocytes?

Lymphocyte
Eosinophil
Monocyte
All of the above

Question 13 of 20

13. Question

Which of the following is a function of human blood?

It regulates body temperature
It transports wastes
It provides defence
All of the above

Question 14 of 20

14. Question

Valves to prevent the backflow of blood are found in:

Arteries
Veins
Capillaries
All of the above

Question 15 of 20

15. Question

Plasma is made up of water and ____________.

Metabolites and wastes
Salts and ions
Proteins
All of the above

Question 16 of 20

16. Question

Which of these are responsible for blood clotting?

Platelets
Erythrocytes
Neutrophils
Basophils

Question 17 of 20

17. Question

Find the correct path of blood circulation?

Left atrium, left ventricle, lungs, right atrium, right ventricle, body
Right atrium, right ventricle, lungs, left atrium, left ventricle, body
Left atrium, left ventricle,' right atrium, right ventricle, lungs, body
Right atrium, lungs, right ventricle, left atrium, body, left ventricle

Question 18 of 20

18. Question

A patient with blood group A can be given the blood of donor who has:

Blood group A or B
Blood group A or 0
Blood group A only
Blood group 0 only

Question 19 of 20

19. Question

The death of heart tissue is called:

Atherosclerosis
Arteriosclerosis
Myocardial infarction
Thalassaemia

Question 20 of 20

20. Question

What happens when a mismatched blood group is injected in recipient?

Antibodies of the recipient's blood destroy donor's RBCs
Antibodies of the donor's blood breakdown recipient's RbCs
Both of these can happen
None of these happens and such transfusion can be safe