Biology, 17.12.2019 05:31 maxwellirowa10oy9yaf

The major function of the conjunctiva is to:

a. produce tears to lubricate the eyes.

b. produce mucus to prevent the eyes from drying out.

c. lubricate the eyelids so they do not stick together.

d. produce sweat to cool the eyelids.

Answers: 1

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Answer from: Nicolas9979

b. produce mucus to prevent the eyes from drying out.

Explanation:

Conjunctiva is a mucous membrane which covers the underside of the eyelids, the sclera (the white of the eye) upto the limbus (the junction of cornea/ transparent portion of the eye and sclera).

It contains various mucin glands which produce mucous responsible for moistening the conjunctiva. The various mucin glands present in conjunctiva are

Goblet cellsGlands of ManzCrypts of Henle

QUESTION:

a. produce tears to lubricate the eyes.

This is the inappropriate answer choice as tears are mostly produced by the lacrimal glands. Only a very small proportion are produced by the conjunctiva.

b. produce mucus to prevent the eyes from drying out.

This is the correct answer and appropriate choice as mucous from conjunctival glands helps in preventing dryness of eyes.

c. lubricate the eyelids so they do not stick together.

This is the inappropriate answer choice.

d. produce sweat to cool the eyelids.

This is the incorrect answer choice as it is not the function of conjunctiva.

Answer from: Quest

answer: 4

explanation: 8

Answer from: Quest

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

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The major function of the conjunctiva is to:

a. produce tears to lubricate the eyes.

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