WBCS Mains Biology Human Physiology & Endocrinology Questions 2023

Q. Lumbar vertebrae are found in
(A) Abdominal region
(B) Thorax
(C) Neck region
(D) Hip region

Correct Answer: (A) Abdominal region

Q. Vocal Cords occur in
(A) Pharynx
(B) Larynx
(C) Glottis
(D) Bronchial tube

Correct Answer: (B) Larynx

Q. Hormone secretin is produced by
(A) Stomach
(B) Liver
(C) Intestine
(D) Pancreas

Correct Answer: (C) Intestine

WBCS Mains Biology Human Physiology & Endocrinology Questions 2022

Q. An endocrinologist deals with
(A) Teeth
(B) Glands
(C) Epidemics
(D) Heart

Correct Answer: (B) Glands

Q. Bleeding is stopped by applying FeCl₃ solution because
(A) Blood starts flowing in opposite direction
(B) It reacts with blood and forms a solid which seals the blood vessels
(C) Blood is coagulated and seals blood vessel
(D) None of the above

Correct Answer: (C) Blood is coagulated and seals blood vessel

Q. Oxygen binding protein in body is
(A) Hemoglobin
(B) Myoglobin
(C) Hemerythrin
(D) All of the above

Correct Answer: (D) All of the above

Q. pH of the blood in human body around 7 is maintained by buffering action of
(A) H₂CO₃ and Na₂CO₃
(B) H₂CO₃ and NaHCO₃
(C) CH₃COOH and CH₃COONa
(D) Na₂HPO₄ and NaH₂PO₄

Correct Answer: (B) H₂CO₃ and NaHCO₃

Q. How much air does a man normally inhale in a day?
(A) 5 kg
(B) 16 kg
(C) 20 kg
(D) 25 kg

Correct Answer: (C) 20 kg

Q. How carbon monoxide, emitted by automobiles, prevents transport of oxygen in the body tissues?
(A) By forming a stable compound with hemoglobin
(B) By obstructing the reaction of oxygen with hemoglobin
(C) By changing oxygen into carbon dioxide
(D) By destroying the hemoglobin

Correct Answer: (A) By forming a stable compound with hemoglobin

WBCS Mains Biology Human Physiology & Endocrinology Questions 2021

Q. Normal blood pressure of a healthy person is
(A) 120/100
(B) 110/90
(C) 120/80
(D) 120/90

Correct Answer: (C) 120/80

Q. Dialysis is the process of separation of
(A) Suspended particles from colloids
(B) Suspended particles from crystalloids
(C) Colloidal particles from crystalloids
(D) None of the above

Correct Answer: (C) Colloidal particles from crystalloids

Q. Which of the following is a direct source of energy for muscle contraction?
(A) ATP
(B) Creatine Phosphate
(C) Lactic acid
(D) Both (A) and (B)

Correct Answer: (A) ATP

Q. Which of the following connects a bone to bone?
(A) Cartilage
(B) Ligament
(C) Tendon
(D) Interstitial fluid

Correct Answer: (B) Ligament

Q. Which of the following ions is involved in blood clotting?
(A) K⁺
(B) Na⁺
(C) Fe³⁺
(D) Ca²⁺

Correct Answer: (D) Ca²⁺

WBCS Mains Biology Human Physiology & Endocrinology Questions 2020

Q. The human eye forms the image of an object at its
(A) Cornea
(B) Iris
(C) Pupil
(D) Retina

Correct Answer: (D) Retina

Q. The human eye can focus on objects at different distances by adjusting the focal length of the eye lens. This is due to
(A) Presbyopia
(B) Accommodation
(C) Near-sightedness
(D) Far-sightedness

Correct Answer: (B) Accommodation

Q. Tissue that connects muscle to bone in humans is known as
(A) Phloem
(B) Adipose
(C) Tendon
(D) Epithelial

Correct Answer: (C) Tendon

Q. Which of the following is not a part of the female reproductive system in human beings?
(A) Ovary
(B) Uterus
(C) Vas deferens
(D) Fallopian tube

Correct Answer: (C) Vas deferens

Q. The kidneys in human beings are a part of the system for
(A) Excretion
(B) Nutrition
(C) Respiration
(D) Transportation

Correct Answer: (A) Excretion

Q. The gap between two neurons is called a
(A) Dendrite
(B) Synapse
(C) Axon
(D) Impulse

Correct Answer: (B) Synapse

WBCS Mains Biology Human Physiology & Endocrinology Questions 2019

Q. Which of the following is the largest gland in an adult man?
(A) Thymus
(B) Liver
(C) Thyroid
(D) Pancreas

Correct Answer: (B) Liver

Q. In blood, CO₂ is transported majorly as
(A) CO₂ as such
(B) Sodium Carbonate
(C) Bicarbonate
(D) Carboxy haemoglobin

Correct Answer: (C) Bicarbonate

Q. Kupffer cells are present in
(A) Pancreas
(B) Liver
(C) Thyroid
(D) Small intestine

Correct Answer: (B) Liver

Q. ‘Adaptation’ of eyes in dark due to
(A) Depletion of vision pigment in rods
(B) Depletion of vision pigment in cones
(C) Repletion of vision pigment in rods
(D) Repletion of vision pigment in cones

Correct Answer: (C) Repletion of vision pigment in rods

WBCS Mains Biology Human Physiology & Endocrinology Questions 2018

Q. The human eye forms the image of an object at its
(A) Retina
(B) Cornea
(C) Iris
(D) None of the above

Correct Answer: (A) Retina

Q. The normal blood pressure of human beings should remain in the range of
(A) 120/80 mm
(B) 110/70 mm
(C) 140/80 mm
(D) 110/60 mm

Correct Answer: (A) 120/80 mm

Q. Universal recipient blood group is
(A) AB
(B) O
(C) B
(D) A

Correct Answer: (A) AB

Q. Goitre is caused by the deficiency of
(A) Vitamin A
(B) Vitamin D
(C) Iodine
(D) None of the above

Correct Answer: (C) Iodine

Q. Which one of the following gases reacts with haemoglobin and produces toxic effect?
(A) CO₂
(B) SO₂
(C) NO₂
(D) CO

Correct Answer: (D) CO

Q. The heart rate of adult persons should remain in the range of
(A) 50–60 times per minute
(B) 70–80 times per minute
(C) 40–50 times per minute
(D) 90–100 times per minute

Correct Answer: (B) 70–80 times per minute

Q. Which organ is not controlled by autonomous nervous system?
(A) Heart
(B) Uterus
(C) Glands
(D) Eyes

Correct Answer: (D) Eyes

Q. Blood is filtered in the body through
(A) Liver
(B) Kidney
(C) Lungs
(D) None of the above

Correct Answer: (B) Kidney

WBCS Mains Biology Human Physiology & Endocrinology Questions 2017

Q. The diameter of a human hair is about
(A) 50 μm
(B) 50 nm
(C) 100 μm
(D) 100 nm

Correct Answer: (A) 50 μm

WBCS Mains Biology Human Physiology & Endocrinology Questions 2015

Q. Lead blocks the biosynthesis of
(A) Muscle protein
(B) Myaglobin
(C) Haemoglobin
(D) Ossein

Correct Answer: (C) Haemoglobin

Q. Human body’s main organ of balance is located in
(A) Inner part of ear
(B) Spine
(C) Brain (front part)
(D) Pituitary gland

Correct Answer: (A) Inner part of ear

Q. Chemically hormones are
(A) Amino Acids
(B) Fatty Acids
(C) Proteins
(D) Steroids

Correct Answer: (D) Steroids

Q. Blood pressure is under control of
(A) Adrenal
(B) Pituitary
(C) Thyroid
(D) Aldosterone

Correct Answer: (D) Aldosterone

Q. Human body requires some minerals for contraction of muscles
(A) Calcium, Potassium
(B) Iron
(C) Calcium, Sodium
(D) Calcium, Sodium and Iron

Correct Answer: (A) Calcium, Potassium

Q. In vitro fertilisation is a technique that involves transfer of which one of the following into the fallopian tube?
(A) Zygote only
(B) Embryo only upto 8 cell stage
(C) Embryo of 32 cell stage
(D) Either Zygote or early embryo upto 8 cell stage

Correct Answer: (D) Either Zygote or early embryo upto 8 cell stage

Q. Which type of cells are involved in allergic response?
(A) Basophils
(B) Mast Cell
(C) Fibroblast cell
(D) Both (A) and (B)

Correct Answer: (D) Both (A) and (B)

Q. Which of the following enzyme is present in saliva?
(A) Pepsin
(B) Trypsin
(C) Ptyalin
(D) Chymotrypsin

Correct Answer: (C) Ptyalin

Q. IQ below is considered mental retardation
(A) 70
(B) 90
(C) 80
(D) 60

Correct Answer: (A) 70

WBCS Mains Biology Human Physiology & Endocrinology Questions 2014

Q. Islets of Langerhans are responsible for the secretion of
(A) Testosterone
(B) Oestrogens
(C) Insulin
(D) Progesterone

Correct Answer: (C) Insulin

Q. The blood cells that defend the body against infections are
(A) White blood cells
(B) Red blood cells
(C) Platelets
(D) Erythrocytes

Correct Answer: (A) White blood cells