Biology Selected Questions and Answers Set 7

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Q.1:- What is the time interval between two subsequent muscle contraction of a muscle fibre better known as ?

  1. Gestation Period
  2. Refractory Period
  3. Incubation Period
  4. None of These

Ans:- (b) Refractory Period

Q.2:- Retina is most sensitive at which part of the eye ?

  1. Periphery
  2. Optic Disc
  3. Macula Lutea
  4. Fovea Centralis

Ans:- (d) Fovea Centralis

Q.3:- What is the inflammation of urinary bladder called ?

  1. Nephrosis
  2. Nephritis
  3. Cystitis
  4. Bright’s Disease

Ans:- (c) Cystitis

Q.4:- Which nerve carries the taste sensation to the brain ?

  1. Glossopharangeal
  2. Accessory Spinal
  3. Vagus
  4. Hypoglossal

Ans:- (a) Glossopharangeal

Q.5:- What are the hormones that are released at the nerve endings and activate the adjacent bodies called ?

  1. Stimulating Hormone
  2. Neurotransmitter
  3. Neurohormone
  4. None of these

Ans:- (c) Neurohormone

Q.6:- Which of the following describes a mammalian kidney ?

  1. Metanephric
  2. Mesonephric
  3. Pronephric
  4. None

Ans:- (a) Metanephric

Q.7:- Which respiratory disease is associated with excess of histamine ?

  1. Asthma
  2. Bronchitis
  3. Emphysema
  4. All

Ans:- (a) Asthma

Q.8:- What is the shape of the diaphragm during expiration ?

  1. Oblique
  2. Flattened
  3. Dome Shaped
  4. Normal
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Ans:- (b) Flattened

Q.9:- The yellow colour of urine is due to urochrome which is synthesized by the oxidation of which of the following ?

  1. Stereobilin
  2. Uric Acid
  3. Cholesterol
  4. Bile

Ans:- (a) Stereobilin

Q.10:- What is a joint that allows movement of bones in all direction known as ?

  1. Hinge Joint
  2. Ball and Socket Joing
  3. Pivot Joint
  4. Angular Joint

Ans:- (b) Ball and Socket Joint

Q.11:- How Many vertebrae does the thoracic region of vertebral column consist of ?

  1. 4
  2. 7
  3. 12
  4. 24

Ans:- (c) 12

Q.12:- Where are the haversian canals found ?

  1. Bone Marrow
  2. Hyaline Cartilage
  3. Calcified Cartilage
  4. Bone Matrix

Ans:- (d) Bone Matrix

Q.13:- What is the other name of blood clot forming in vessels blocking the flow of blood called ?

  1. Bolus
  2. Ulcer
  3. Thrombus
  4. Pus

Ans:- (c) Thrombus

Q.14:- Which muscle is used in straightening a limb ?

  1. Flexor
  2. Extensor
  3. Elevator
  4. Depression

Ans:- (b) Extensor

Q.15:- A blood group has agglutinogen located on / in which of the following ?

  1. Haemoglobin
  2. Serum
  3. Plasma
  4. RBC
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Ans:- (d) RBC

Q.16:- In mammals what does the corpus callosum connect ?

  1. Bone to Muscle
  2. Bone to Ligament
  3. Optic Lobes
  4. Cerebral Hemisphere

Ans:- (d) Cerebral Hemisphere

Q.17:- Which of the following is the most toxic waste matter ?

  1. Hippuric Acid
  2. Uric Acid
  3. Urea
  4. Ammonia

Ans:- (d) Ammonia

Q.18:- Who gave the classification of human blood into A, B and O types ?

  1. Landsteiner
  2. Linger
  3. Harvey
  4. Pasteur

Ans:- (a) Landsteiner

Q.19:- Which part of the eye is devoid of blood vessel ?

  1. Sclereid
  2. Cornea
  3. Choroids
  4. Retina

Ans:- (b) Cornea

Q.20:- What is a nerve conveying impulse from tissue to nerve centre called ?

  1. Efferent
  2. Afferent
  3. Mixed
  4. None

Ans:- (b) Afferent

Q.21:- Cristae are the acoustic ridges. Where are they found ?

  1. Utriculus
  2. Sacculus
  3. Lagena
  4. Ampullae

Ans:- (d) Ampullae

Q.22:- What is leucopenia ?

  1. Uncontrolled RBC
  2. Uncongrolled WBC
  3. Less Production of WBC
  4. Excess of Platelets

Ans:- (c) Less Production of WBC

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Q.23:- The capacity of leucocytes to squeeze through the thin capillaries is called ?

  1. Haemolysis
  2. Diapedesis
  3. Leukemia
  4. Leucopenia

Ans:- (b) Diapedesis

Q.24:- Which of the following hormones reduces re-absorption of water causing dieresis ?

  1. Parathormone
  2. Rennin
  3. Thyroxine
  4. ADH

Ans:- (c) Thyroxine

Q.25:- What is a joint that allows restricted movement in one plane only known as ?

  1. Angular Joint
  2. Pivot Joint
  3. Hinge Joint
  4. Gliding Joint

Ans:- (c) Hinge Joint