Chief Editor
Chief Editor
 Mar 26, 2023
0
In most plants the food is transported in the form of
Difficulty: Easy
A:

Glucose

B:

Sucrose

C:

Starch

D:

Proteins

Stomata close when the guard cells
Difficulty: Easy
A:

Lose water

B:

Gain chloride ions

C:

Become turgid

D:

Gain potassium ions

Trace the pathway of water from the soil through the plant to the atmosphere. 
Difficulty: Hard
A:

Endodermis, cortex, epidermis, vessel elements intercellular spaces in mesophyll, stomata 

B:

Epidermis, endodermis, phloem, cortex of leaf, intercellular spaces of mesophyll, stomata 

C:

Root hairs, epidermis, cortex, xylem, endodermis, intercellular spaces in mesophyll stomata 

D:

Root hairs, cortex, endodermis, vessel elements, intercellular spaces in mesophyll stomata 

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

Plasma

B:

Lymph

C:

Serum

D:

Puss

What is correct about human red blood cells? 
Difficulty: Medium
A:

Have limited life span

B:

Are capable of phagocytosis 

C:

Produce antibodies

D:

Are multinucleate 

Which of the following tissue layer is found in all blood vessels?
Difficulty: Medium
A:

Smooth muscle

B:

Endothelium 

C:

Skeletal muscle

D:

Connective issue 

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When does the atria contract?
Difficulty: Medium
A:

Before diastole

B:

After systole 

C:

During diastole

D:

During systole 

Which of the following contains deoxygenated blood in an adult human? 
Difficulty: Medium
A:

Left atrium

B:

Pulmonary artery 

C:

Pulmonary vein

D:

All of the above 

Which of the following chambers has the thickest walls in the human heart? 
Difficulty: Easy
A:

Right atrium

B:

Left atrium 

C:

Left ventricle

D:

Right ventricle 

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Which of these statements is correct about the circulatory system? 
Difficulty: Easy
A:

It transports hormones 

B:

Capillaries have thicker walls than veins 

C:

Systemic circulation carries blood to and from the lungs 

D:

All of the above are true 

The exchange of materials between the blood and the surrounding tissues occurs in
Difficulty: Medium
A:

Arteries

B:

Veins

C:

Capillaries

D:

All of the above 

Which of the following is a type of leukocyte? 
Difficulty: Easy
A:

Macrophage

B:

Eosinophil

C:

Monocyte

D:

All of the above

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Which of the following is a function of human blood? 
Difficulty: Medium
A:

It regulates body temperature

B:

It transports wastes 

C:

It provides defence

D:

All of the above 

Valves to prevent the backflow of blood are found in the
Difficulty: Medium
A:

Arteries

B:

Veins 

C:

Capillaries

D:

All of the above 

Plasma is made up of water and -----------. 
Difficulty: Easy
A:

Metabolites and wastes

B:

Salts and ions 

C:

Proteins

D:

All of the above 

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Which cells of blood are responsible for clotting? 
Difficulty: Easy
A:

Platelets

B:

Erythrocytes

C:

Neutrophils

D:

Basophils

Find the correct path of blood circulation. 
Difficulty: Hard
A:

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

B:

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

C:

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

D:

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

A patient with blood group A can be given the blood of a donor who has
Difficulty: Medium
Verified By ClassNotes
A:

Blood group A or AB

B:

Blood group A or O 

C:

Blood group A only

D:

Blood group O only 

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The death of the heart tissue is called
Difficulty: Medium
A:

Atherosclerosis

B:

Arteriosclerosis

C:

Myocardial infarction

D:

Thalassaemia 

What happens when a mismatched blood group is injected into the recipient? 
Difficulty: Hard
A:

Antibodies of the recipient's blood destroy donor's RBCes 

B:

Antibodies of the donor's blood breakdown recipient's RBCes 

C:

Both of these can happen 

D:

None of these happens and such transfusion can be safe 

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