Sense Organs and Receptors Quiz

Receptors and Skin Sensation

• Mechanoreceptors: Specialized receptors responsible for detecting pressure on the skin. These include Pacinian corpuscles for deep pressure and Meissner's corpuscles for light touch.

Eye Anatomy

• Cornea: The transparent front part of the eye that covers the colored part (iris) and helps to focus light onto the retina.
• Sclera: The white outer layer of the eyeball that provides protection and shape.

Tear Production

• Tear Glands (Lacrimal Glands): Responsible for producing tears, which lubricate the eye, remove debris, and provide nutrients. They also contain enzymes that help to protect against infection.

Blood Supply in the Eye

• Choroid Layer: A vascular layer in the eye richly supplied with blood vessels, essential for nourishing the retina and providing oxygen.

Lens Protection

• Iris: The part of the eye that partially covers the lens and controls the size of the pupil, thereby regulating the amount of light entering the eye.

Chlorophyll Location

• Chloroplasts: Primarily located in plant cells, particularly in the leaves, chlorophyll is the pigment responsible for photosynthesis and absorbs light energy.

Stomata Function

• Gas Exchange: Stomata are small openings on the leaf surface that facilitate the exchange of gases (CO2 and O2), crucial for photosynthesis and respiration.

Color Perception in Leaves

• Chlorophyll Absorption: Leaves appear green to the human eye because chlorophyll absorbs blue and red light but reflects green light.

Photosynthesis Byproducts

• Oxygen: The main byproduct of photosynthesis, produced when plants convert carbon dioxide and water into glucose using sunlight.