Transport

CE

Chief Editor

Mar 26, 2023

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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

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

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

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

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

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

Verified

Difficulty: Medium

A:

Blood group A or AB

B:

Blood group A or O

C:

Blood group A only

D:

Blood group O only

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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