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Biology Mixed Test - 3

Description: Biology Mix Test - 3
Number of Questions: 25
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Tags: Biology Mix Test - 3 Connective Tissue Epithelial Tissue Mechanism of Muscle Contraction Muscle Tissue
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Which of the following cells is not present in the connective tissue?

  1. Chondrocytes

  2. Osteoblasts

  3. Histiocytes

  4. Myocytes

Show answer
Correct Option: D
Explanation:

They are the cells of muscle tissue.

Which of the following is not a granulocyte?

  1. Neutrophil

  2. Basophil

  3. Eosinophil

  4. Monocyte

Show answer
Correct Option: D
Explanation:

They are the agranulocytes.

Which of the following statements is true about the red blood corpuscles?

  1. Their shape remains the same in all the classes of vertebrates.

  2. They are larger in size than the white blood corpuscles.

  3. Their life span is so short as 120 hrs.

  4. They adhere and pile up in resting and slow flowing blood.

Show answer
Correct Option: D
Explanation:

Their pile up structure is called rouleaux.

Which of the following statements is true for platelets?

  1. They are irregularly amoeboid shaped.

  2. They are the least abundant formed element of blood.

  3. They have a life span of 3-7 years.

  4. They are non-nucleated fragments of giant cells.

Show answer
Correct Option: D
Explanation:

They are the non- nucleated fragments of megakaryocytes of bone marrow.

Which leucocytes secrete histamine and heparin?

  1. Monocytes

  2. Lymphocytes

  3. Eosinophils

  4. Basophils

Show answer
Correct Option: D
Explanation:

They exocytose histamine and heparin (a blood anticoagulant).

Which of the following statements is true for blood plasma?

  1. It is released from a clot.

  2. It is a clear fluid.

  3. It lacks corpuscles and fibrogens.

  4. It has the tendency to coagulate.

Show answer
Correct Option: D
Explanation:

 They have clotting proteins and, therefore, can undergo coagulation.

Which of the following statements is not correct about lymph?

  1. It contains plasma.

  2. It lacks red blood cells.

  3. It lacks white blood cells.

  4. It lacks platelets.

Show answer
Correct Option: C
Explanation:

Due to white blood corpuscles, they appear white in colour.

In which of the following tissues is chondrin found?

  1. Blood

  2. Areolar tissue

  3. Cartilage

  4. Bone

Show answer
Correct Option: C
Explanation:

Chondrin is a component of cartilages which have chondrocytes.

In which of the following types of leucocytes is nucleus not lobed?

  1. Eosinophil

  2. Basophil

  3. Monocyte

  4. Neutrophil

Show answer
Correct Option: C
Explanation:

Nucleus is very large and slightly bean shaped.

Which one of the following leucocytes are non-motile, non-phagocytic and produce antibodies?

  1. Monocytes

  2. Neutrophils

  3. Eosinophils

  4. Lymphocytes

Show answer
Correct Option: D
Explanation:

They specialize into B-cells and hence produce antibodies against antigens.

Which type of tissue is blood?

  1. Muscular tissue

  2. Connective tissue

  3. Epithelial tissue

  4. Nervous tissue

Show answer
Correct Option: B
Explanation:

Blood is a vascular connective tissue.

Which type of connection is made by ligaments?

  1. Muscle to bone

  2. Bone to bone

  3. Skin to muscle

  4. Nerves to bone

Show answer
Correct Option: B
Explanation:

They are joined by the ligaments.

Which kind of glands are the goblet cells, present in the lining of intestine?

  1. Apocrine

  2. Holocrine gland

  3. Merocrine

  4. Endocrine gland

Show answer
Correct Option: C
Explanation:

These glands secrete their secretions by exocytosis.

Which type of cells constitue the fatty tissue?

  1. Osteocytes

  2. Adipocytes

  3. Chondrocytes

  4. Leucocytes

Show answer
Correct Option: B
Explanation:

These cells contain the fat droplet.

Which of the following is not a feature of secondary myofilament?

  1. They are confined to A band only.

  2. They are thicker than the primary myofilaments.

  3. Their surface is rougher than the primary myofilaments.

  4. They are lesser in number than the primary myofilaments.

Show answer
Correct Option: D
Explanation:

They are more in numbers than the primary myofilaments.

Which of the following leucocytes has multilobed nucleus?

  1. Neutrophil

  2. Eosinophil

  3. Monocyte

  4. Basophil

Show answer
Correct Option: A
Explanation:

It has multilobed nucleus.

Which of the following statements is true about white blood corpuscles?

  1. They are biconcave and enucleated.

  2. They are smaller and fewer than the red blood corpuscles.

  3. They have a life span so small as 3-4 weeks.

  4. They undergo diapedesis to squeeze out of the capillaries.

Show answer
Correct Option: D
Explanation:

Diapedesis is the amoeboid movement, which is a characteristic of white blood corpuscles.

Which of the following tissues has the least power of regeneration?

  1. Epidermis of skin

  2. Endothelium of blood vessels

  3. Skeletal tissue of bones

  4. Nervous tissue of brain

Show answer
Correct Option: D
Explanation:

They are the tissues which do not get repaired after getting impaired once.

Which of the following is the feature of primary myofilaments?

  1. They occur in I band of sarcomere.

  2. Their one end is joined with Z line.

  3. They are more in numbers than the secondary myofilaments.

  4. Their thickness is more than the secondary myofilaments.

Show answer
Correct Option: D
Explanation:

Their thickness is 0.01 micron while that of secondary myofilament is 0.005 micron.

Which of the following types of leucocytes are supposed to be higher in number in a person having allergies like asthma or hay fever?

  1. Monocytes

  2. Basophils

  3. Neutrophils

  4. Eosinophils

Show answer
Correct Option: D
Explanation:

They have anti-histamine properties which increase allergic conditions.

Through which of the following structures do adjacent epithelial cells communicate?

  1. Desmosomes

  2. Ribosomes

  3. Oxysomes

  4. Peroxisomes

Show answer
Correct Option: A
Explanation:

They are the channels for exchange of material.

Which of the following is a feature of A band of striated muscles?

  1. It is isotropic.

  2. It is light in appearance.

  3. It contains only secondary myofilaments.

  4. Its length remains the same.

Show answer
Correct Option: D
Explanation:

Its length remains the same during contraction, while that of I band shortens.

Which of the following types of cells secrete the matrix of areolar tissue?

  1. Mast cells

  2. Histiocytes

  3. Osteocytes

  4. Fibrocytes

Show answer
Correct Option: A
Explanation:

They are the matrix-secreting cells of this tissue.

Which of the following is not a characteristic of I band of striated muscles?

  1. It is isotropic.

  2. It is light in appearance.

  3. It contains only secondary myofilaments.

  4. It remains the same during contraction.

Show answer
Correct Option: D
Explanation:

It shortens when the muscle fibre is under contraction.

Which of the following types of protein is not found in connective tissues?

  1. Collagen

  2. Elastin

  3. Ossein

  4. Actin

Show answer
Correct Option: D
Explanation:

It is present in muscle fibres.

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