IGKO Class 5 - Sample question paper 03
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Q1) How many major types of cells are there in our blood?
a) two
b) three
c) four
d) five
Answer: c) four
Explanation: Our blood contains four major types of cells, including red blood cells, white blood cells, platelets, and plasma.
Q2) Which of the following does not contribute to the spread of diseases?
a) Light
b) Air
c) Water
d) Insects
Answer: a) Light
Explanation: Light does not play a role in spreading diseases, unlike air, water, and insects, which can transmit diseases.
Q3) Which nutrient is responsible for the body's growth, and its deficiency causes:
a) Kwashiorkor
b) Rickets
c) Nausea
d) None of these
Answer: d) None of these
Explanation: None of the options mentioned are correct. Protein is the nutrient responsible for body growth.
Q4) Which tissues in the human body do not have any blood vessels?
a) nails
b) hair
c) both (a) and (b)
d) none of these
Answer: c) both (a) and (b)
Explanation: Nails and hair are composed of dead cells and do not have any blood vessels.
Q5) What does exercise do for the body?
a) Make us tired
b) Increase the flow of blood
c) Relax the body
d) None of these
Answer: b) Increase the flow of blood
Explanation: Exercise helps increase the flow of blood, improve cardiovascular health, and provide various other health benefits.
Q6) The system formed by organs like eyes, ears, nose, tongue, and skin is called:
a) Nervous system
b) Respiratory system
c) Sensory system
d) Excretory system
Answer: c) Sensory system
Explanation: The sensory system includes organs responsible for receiving and processing sensory information from the environment.
Q7) Approximately how many muscles are there in the human body?
a) 100
b) 450
c) 650
d) 990
Answer: c) 650
Explanation: The human body has approximately 650 muscles, which allow us to move and perform various physical activities.
Q8) What is the hard bony structure of the body called?
a) nerve
b) muscle
c) heart
d) skeleton
Answer: d) skeleton
Explanation: The skeleton is the hard bony structure of the body that provides support, protection, and facilitates movement.
Q9) How many parts is our ear divided into?
a) Three
b) Five
c) Eight
d) Ten
Answer: c) Eight
Explanation: Our ear is divided into three main parts: the outer ear, the middle ear, and the inner ear.
Q10) Which of these organs has no bones?
a) Nose
b) Tongue
c) Forehead
d) Fingers
Answer: b) Tongue
Explanation: The tongue is a muscular organ and does not contain any bones.
Q11) Which is the largest organ of the human body?
a) Skin
b) Stomach
c) Heart
d) Brain
Answer: a) Skin
Explanation: The skin is the largest organ in the human body, serving as a protective barrier and regulating body temperature.
Q12) Which of these organs stores and concentrates bile?
a) Stomach
b) Liver
c) Pancreas
d) Gall bladder
Answer: d) Gall bladder
Explanation: The gall bladder stores and concentrates bile produced by the liver, releasing it when needed to aid in digestion.
Q13) __________ is the opening for the elimination of feces.
a) Rectum
b) Small intestine
c) Anus
d) Pancreas
Answer: c) Anus
Explanation: The anus is the opening through which feces are eliminated from the body.
Q14) Which of these nutrients is the primary source of energy?
a) Carbohydrates
b) Proteins
c) Vitamins
d) Minerals
Answer: a) Carbohydrates
Explanation: Carbohydrates are the primary source of energy for the body, providing fuel for various cellular processes.
Q15) Who discovered the circulation of blood?
a) Robert Hook
b) William Harvey
c) Lord Wellington
d) Prince Charles II
Answer: b) William Harvey
Explanation: The circulation of blood was discovered by William Harvey, an English physician, who demonstrated the continuous circulation of blood through the heart and blood vessels.
Q16) At the time of hearing, sound waves are converted into ________.
a) nerve impulses
b) taste buds
c) vision signals
d) enzymes
Answer: a) nerve impulses
Explanation: At the time of hearing, sound waves are converted into nerve impulses that travel from the ear to the brain, where they are interpreted as sound.
Q17) Where does the digestion of food start in the human body?
a) Mouth
b) Stomach
c) Liver
d) Small intestine
Answer: a) Mouth
Explanation: The digestion of food starts in the mouth, where enzymes in saliva begin to break down carbohydrates.
Q18) A __________ disease can be transmitted from animals to humans.
a) Faunotic
b) Herbotic
c) Zoonotic
d) Robotic
Answer: c) Zoonotic
Explanation: A zoonotic disease is one that can be transmitted from animals to humans, such as rabies, avian flu, and COVID-19.
Q19) Which of these are released by Pancreas?
a) Bicarbonates
b) Trypsin
c) Chymotrypsin
d) All of these
Answer: d) All of these
Explanation: The pancreas releases bicarbonates, trypsin, chymotrypsin, and other enzymes that aid in the digestion of fats, proteins, and carbohydrates.
Q20) Which vitamin plays an important role in protecting red blood cells?
a) A
b) C
c) E
d) K
Answer: c) E
Explanation: Vitamin E plays an important role in protecting red blood cells from damage caused by free radicals and oxidative stress.
Q21) Angiosperms are flowering plants that have their seeds enclosed in the hollow of ________.
a) sepals
b) ovaries
c) stamens
d) petals
Answer: b) ovaries
Explanation: Angiosperms are plants that produce flowers, and their seeds develop within the ovary of the flower after fertilization.
Q22) What were the first living organisms to appear on Earth?
a) plants
b) animals
c) human beings
d) all of these
Answer: a) plants
Explanation: The earliest life forms on Earth were likely simple microorganisms, which later evolved into more complex organisms like plants, animals, and eventually human beings.
Q23) Which animal is known for being unable to jump?
a) tiger
b) hippopotamus
c) rhinoceros
d) elephant
Answer: d) elephant
Explanation: Elephants are large and heavy animals that cannot jump, unlike many other smaller animals.
Q24) What are plants that have adapted to thrive in desert conditions called?
a) saprophytes
b) homophytes
c) xerophytes
d) mesophytes
Answer: c) xerophytes
Explanation: Xerophytes are plants that have specialized adaptations to survive in arid or desert environments, such as storing water and reducing leaf surface area.
Q25) How do kangaroos cope with harsh summers?
a) by going underground
b) by licking their forelegs
c) by scratching their pouches
d) by jumping
Answer: b) by licking their forelegs
Explanation: Kangaroos regulate their body temperature during hot weather by licking their forelegs, which helps in cooling through evaporation.