All Free Everyday Science MCQs with Answers

1111. Which of following is not a digestive enzyme in human body?

• A. Pepsin
• B. Trypsin
• C. Gastrin
• D. Ptyalin

Explanation: Gastrin is a hormone that stimulates gastric acid secretion, not a digestive enzyme. Pepsin, trypsin, and ptyalin are enzymes that digest proteins or starch.

1112. Which body part in Human never grow?

• A. Pupil of eye
• B. Kidney
• C. Liver
• D. None of these

Explanation: The pupil is an opening in the iris, not a growing organ, and its diameter changes mainly with light intensity. The kidney and liver grow as the body develops.

1113. Clotting of blood vessels is called?

• A. Thrombosis
• B. Fibrosis
• C. Agglutination
• D. None

Explanation: Thrombosis is the formation of a blood clot inside a blood vessel, which may obstruct blood flow. Fibrosis means scar-tissue formation, while agglutination means clumping of cells or particles.

1114. The weight of an average human male brain is about?

• A. 1 gr
• B. 1200 gr
• C. 1350 gr
• D. 1500 gr

Explanation: An average adult male brain weighs approximately 1,350 grams, although normal individual variation is considerable. The commonly quoted average for females is slightly lower.

1115. Archeology is the branch of:

• A. Anthropology
• B. Cultural Anthropology
• C. Biological Anthropology
• D. None of these

Explanation: Archaeology is commonly treated as one of the major branches or subfields of anthropology and studies past human societies through material remains. Cultural anthropology studies living cultures, so it is not the parent field of archaeology.

1116. Diabetes mellitus affects human system following a disorder in _____________?

• A. Anatomy
• B. Behaviour
• C. Metabolism
• D. Excretion

Explanation: Diabetes mellitus results from inadequate insulin action, causing an abnormal metabolism of glucose and other nutrients. Anatomy concerns body structure, whereas excretion is only one bodily process affected secondarily.

1117. Sickle cell anemia is a _________?

• A. Genetic disorder
• B. virus disease
• C. bacterial disease
• D. diseases due to vitamin deficiency

Explanation: Sickle-cell anaemia is caused by an inherited mutation affecting haemoglobin, so it is a genetic disorder. It is not caused by a virus, bacterium, or vitamin deficiency.

1118. For about how many hours food remains in small intestine?

• A. 2 to 6 hours
• B. 12 to 25 hours
• C. 7 to 11 hours
• D. 24 to 48 hours

Explanation: Food normally passes through the small intestine in roughly 3 to 6 hours, where most digestion and nutrient absorption occur. The 2-to-6-hour range is the closest listed estimate.

1119. Myopia is a human eye disorder That can be corrected by using the lens ?

• A. Convex
• B. Concave
• C. Cylindrical
• D. Medicine

Explanation: Myopia focuses distant images in front of the retina, so a concave lens spreads incoming rays before they enter the eye and shifts the focus backward onto the retina. Convex lenses are used to correct hypermetropia, or farsightedness.

1120. Patela is a bone of the ________?

• A. Skull
• B. Leg
• C. Arm
• D. Chest

Explanation: The patella, or kneecap, is located at the knee and protects the knee joint. Since the knee is part of the lower limb, leg is the appropriate option.