Fill In The Blanks.

Question 11 Mark

The chloroplasts contain chlorophyll and carotenoid pigments which are responsible for trapping __________ essential for photosynthesis.

Answer

light energy

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Question 21 Mark

There is about __________ of DNA in a human cell.

Answer

2 meters

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Question 31 Mark

Chromatin contains DNA and some alkaline proteins called __________

Answer

Histones

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Question 41 Mark

This arrangement of axonemal microtubules is referred to as the __________ array.

Answer

9 + 2

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Question 51 Mark

__________ first observed the dense granular structure ribosome through electron microscope.

Answer

George Palade (1953)

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Question 61 Mark

The inner space surrounded by the inner membrane of the chlorophyll is called__________.

Answer

Stroma

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Question 71 Mark

In Amoeba the contractile vacuole is important for osmoregulation and __________.

Answer

Excretion

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Question 81 Mark

Cell membrane is mainly made of __________ and __________.

Answer

Lipids, proteins

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Question 91 Mark

Besides flagella, __________ and Fimbriae are also surface structures of the bacteria but do not play a role in motility.

Answer

Pili

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Question 101 Mark

The diameter of human red blood cell is approximately __________.

Answer

7.0 µm (micrometer)

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BIOLOGY Fill In The Blanks.

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