Human Body(5th Grade > Science ) Questions and answers for exam Preparation

Question 1. How many bones are there in the human body?

202
204
203
206

Explanation:-

Answer: Option D. -> 206
:
D
Theskeleton isthe body part that forms the supporting structure of an organism. The adult humanskeletalsystem contains 206 bones.

Question 2. The iris controls the amount of light entering the eye.

True
False
Eardrum
Pinna

Explanation:-

Answer: Option A. -> True
:
A
Yes, Iris is responsible for the amount of light entering into the eye. It has two pairs of sphinctermuscles which adjust the size of the lens depending amount the intensity of light that we are facing.

Question 3. Molars are rounded teeth and used for grinding food.

True
False
Pores
Pimples

Explanation:-

Answer: Option A. -> True
:
A
The molarsare large, flat teeth at the back of the mouth. They are used primarily to grind food during chewing.

Question 4. The nutrients from the food are absorbed by the large intestine.

True
False

Explanation:-

Answer: Option B. -> False
:
B
The walls of small intestine absorb nutrients from the food and pass it to blood.Blood carries the nutrients to all parts of the body.

Question 5. All life begins from a single ______

Tissue
Cell
Organ
Organ system

Explanation:-

Answer: Option B. -> Cell
:
B
Thelifeofeveryliving organismbegins from a single cell.

Question 6. A group of organs working together to perform a specific function is called an ____.

Muscular System
Cellular System
Organization
Organ system

Explanation:-

Answer: Option D. -> Organ system
:
D
A group of organs working together to perform a specific function is called an organ system.An example of an organ system is thecirculatorysystem, which includes different organs like the heart, arteries, veins, and capillaries.

Question 7. The stirrup is the smallest bone in the body.

True
False
Pores
Pimples

Explanation:-

Answer: Option A. -> True
:
A
Yes, it is the smallest bone present in the body. It is located in the inner ear.

Question 8. The sense of smell is dependent on ___ cells.

Optic
Olfactory
Rod
Cone

Explanation:-

Answer: Option B. -> Olfactory
:
B
The sense of smell is dependent on Olfactory cells. These are present under a small bundle which is known as Olfactory Epithelium.

Question 9. The little bumps on your tongue are called:

Taste buds
Papillae
Pores
Pimples

Explanation:-

Answer: Option B. -> Papillae
:
B
The little bumps on the tongue are called papillae. These contain the taste buds that give us the sensation of taste.

Question 10. The cochlea is a part of the ___.

middle ear
inner ear
outer ear
pinna

Explanation:-

Answer: Option B. -> inner ear
:
B
The cochlea is the part of the inner year. It is spiral in shape like a snail. It contains a cochlear liquid which stirs by stirrup which starts moving when the eardrum vibrates.