Study Material- General Science

 Q1: What is the primary role of the choroid layer in the eye?

 

A) To produce aqueous humor

B) To absorb excess light and provide nutrients to the retina

C) To focus light onto the retina

D) To regulate the size of the pupil

Answer: B) To absorb excess light and provide nutrients to the retina

 

Q2: What part of the eye is involved in the production of tears?

 

A) Lacrimal gland

B) Cornea

C) Iris

D) Sclera

Answer: A) Lacrimal gland

 

Q3: Which condition is commonly known as nearsightedness?

 

A) Hyperopia

B) Myopia

C) Astigmatism

D) Presbyopia

Answer: B) Myopia

 

Q4: The area of the retina with the highest visual acuity is known as:

 

A) Optic disc

B) Fovea centralis

C) Macula lutea

D) Blind spot

Answer: B) Fovea centralis

 

Q5: In which part of the eye does refraction primarily occur?

 

A) Cornea

B) Retina

C) Lens

D) Vitreous body

Answer: A) Cornea

 

Q6: What is the term for an eye condition where light is focused behind the retina, making distant objects clearer than near objects?

 

A) Myopia

B) Hyperopia

C) Astigmatism

D) Cataract

Answer: B) Hyperopia

 

Q7: Which part of the eye contains the photoreceptor cells known as rods and cones?

 

A) Sclera

B) Retina

C) Iris

D) Lens

Answer: B) Retina

 

Q8: The process by which the eye adapts to changes in light intensity is known as:

 

A) Visual acuity

B) Accommodation

C) Dark adaptation

D) Light adaptation

Answer: D) Light adaptation

 

Q9: Which of the following structures is responsible for controlling the eye's focus on nearby objects?

 

A) Cornea

B) Iris

C) Ciliary muscle

D) Retina

Answer: C) Ciliary muscle

 

Q10: What structure connects the eye to the brain and transmits visual information?

 

A) Optic nerve

B) Cornea

C) Lens

D) Vitreous body

Answer: A) Optic nerve

 

Q11: What is the primary function of the aqueous humor?

 

A) To keep the eye moist

B) To maintain intraocular pressure

C) To focus light on the retina

D) To protect the eye from foreign particles

Answer: B) To maintain intraocular pressure

 

Q12: Which eye structure helps to maintain the eye's shape and provides cushioning?

 

A) Aqueous humor

B) Vitreous humor

C) Lens

D) Retina

Answer: B) Vitreous humor

 

Q13: What type of vision is primarily mediated by the rod cells in the retina?

 

A) Color vision

B) Daytime vision

C) Night vision

D) High-resolution vision

Answer: C) Night vision

 

Q14: The transparent front part of the eye that covers the iris and pupil is called the:

 

A) Cornea

B) Lens

C) Sclera

D) Retina

Answer: A) Cornea

 

Q15: Which eye structure is responsible for changing shape to focus light on the retina?

 

A) Cornea

B) Iris

C) Lens

D) Vitreous humor

Answer: C) Lens

 

Q16: What condition is characterized by an uneven curvature of the cornea or lens, leading to distorted vision?

 

A) Myopia

B) Hyperopia

C) Astigmatism

D) Presbyopia

Answer: C) Astigmatism

 

Q17: The part of the retina where the optic nerve leaves the eye is called the:

 

A) Macula

B) Fovea

C) Optic disc

D) Blind spot

Answer: C) Optic disc

 

Q18: Which part of the eye is responsible for adjusting to different light levels and focusing on various distances?

 

A) Iris

B) Lens

C) Retina

D) Cornea

Answer: B) Lens

 

Q19: What is the function of the conjunctiva?

 

A) To protect the eye from pathogens and debris

B) To focus light on the retina

C) To regulate the size of the pupil

D) To produce aqueous humor

Answer: A) To protect the eye from pathogens and debris

 

Q20: The small pit in the retina that provides the sharpest vision is known as the:

 

A) Optic disc

B) Fovea centralis

C) Macula lutea

D) Blind spot

Answer: B) Fovea centralis