Biology
Abraham tried to match the modified sweat glands and sebaceous glands with their functions in the human body.
He tabulated two pairs as follows:
| Glands | Functions |
|---|---|
| P | Lubricate the margins of the eyelids. |
| Q | Protect the delicate eardum from dust particles and germs. |
Identify the correct pair of glands.
- P — Meibomian glands, Q — Salivary glands
- P — Ceruminous glands, Q — Meibomian glands
- P — Salivary glands, Q — Ceruminous glands
- P — Meibomian glands, Q — Ceruminous glands
Answer
P — Meibomian glands, Q — Ceruminous glands
Reason — Meibomian glands are modified sebaceous glands located along the margins of the eyelids. Their function is to secrete an oily substance that lubricates the eyelids.
Ceruminous glands are modified sweat glands found in the ear canal. They produce cerumen (earwax), which traps dust and germs, protecting the delicate eardrum.
Related Questions
The activity of the mammary glands is related to which reproductive hormone:
- Progesterone
- Prolactin
- Oestrogen
- Testosterone
The fibrous structural protein, keratin is found in (P) …………… and a pigment melanin is contained in (Q) …………… of the epidermis.
- P — Malpighian layer, Q — Cornified layer
- P — Stratum malpighi, Q — Granular layer
- P — Stratum corneum, Q — Germinative layer
- P — Granular layer, Q — Cornified layer
Assertion (A): Adipose cells of the skin stores reserve food in the form of protein which can be used during starvation.
Reason (R): Adipose cells are located in the lowest part of the dermis.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Assertion (A): Keratin is the fibrous structural protein located in the stratum corneum of the epidermis.
Reason (R): Keratin makes the skin tough and impervious.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.