__________ is tough and thick white sheath that protect the inner parts of the eye.

(a)

sclera

(b)

conjunctiva

(c)

cornea

(d)

iris

The process of air passing in and out the lungs is called ___________.

(a)

Inhalation

(b)

Exhalation

(c)

Breathing

(d)

None of these

_______tissues for conduction of nerve impalses

(a)

Epithelial

(b)

Muscular

(c)

Nervous

(d)

Supporting

_________million alveoli located at the end of branchial tubes

(a)

480

(b)

300

(c)

100

(d)

200

_______ is the structural and functional unit of living organisms.

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Cell

______ is a good example for anaerobic respiration.

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Yeast

The size of the cells are measured in units of __________.

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Micron

__________is commonly known as the voice box

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Larynx

__________is the sum of chemical reactions by which living organisms sustain their life

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Metabolism

Carbohydrates

(1)

amino acid

Protein

(2)

enzymes, hormone, protein

Glucose

(3)

glcogen and other sugars

Amino acids

(4)

Cholesterol and other steriod.

Fatty acids

(5)

glucose

What is cell differentiation?

Mention the function of ‘Alveoli’?

Differentiate between Osmoconformers and Osmoregulators?

Explain why are you not able to breathe normally when you are in closed and crowded places?

Define cell.

What is homeostasis?

Define Osmoregulation.

Define Prokaryotic cell?

State different types of epithelial cells?

Why do we need instant energy? Does glucose give that energy? Explain.

What is respiration?

Differentiate between inhalation and exhalation.

 Explain the mechanism of breathing.