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Cell Biology Cell structure © 2012 eTutorWorld Learning Solutions Private Limited, India, All rights reserved.

Cell Biology Cell structure © 2012 eTutorWorld Learning Solutions Private Limited, India, All rights reserved

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Cell Biology

Cell structure

© 2012 eTutorWorld Learning Solutions Private Limited, India, All rights reserved.

1. Which cells have a cell wall around them?

• Prokaryotic cells• fungal cells • plant cells• All of the above

© 2012 eTutorWorld Learning Solutions Private Limited, India, All rights reserved.

• . Name the three types of elements that form Golgi complex.

• C _s t_ _ n_ e

• _ e s i _ l _ s

• T_ b u _ _s.

© 2012 eTutorWorld Learning Solutions Private Limited, India, All rights reserved.

Name the unit membrane that surrounds a vacuole.

• Monoplast• Tonoplast• Pleuroplast

© 2012 eTutorWorld Learning Solutions Private Limited, India, All rights reserved.

• Which of the following loses nucleus at maturity in a plant cell?

• Phloem• Sieve plate• Sieve Tube cells• Parenchyma

© 2012 eTutorWorld Learning Solutions Private Limited, India, All rights reserved.

• What is the main function of centrioles?

• To help in the organization of spindle

fibres during cell division.

• To help in the organization of chromosomes during cell division.

© 2012 eTutorWorld Learning Solutions Private Limited, India, All rights reserved.

• Which is the cell organelles enclosed by a double unit membrane?

• Mitochondria and plastids • Plastid and ER• Golgi Bodies and nucleus• ER and Nucleus

© 2012 eTutorWorld Learning Solutions Private Limited, India, All rights reserved.

• Which is not correct statement for 70S and 80S ribosomes?

• 70s ribosomes are found in prokaryotic cells while 80s ribosomes are found in eukaryotic cells.

• 70s ribosome has two sub units of 30s and 50s

• 80s ribosome has two subunits of 60s and 40s.

• None of these© 2012 eTutorWorld Learning Solutions Private Limited, India, All rights reserved.

Name the specific term for the following.

a) Cluster of ribosomes in the cytoplasm.__P_________

b) Folds of the inner mitochondrial membrane. C_________

c) Stacks of closely packed thylakoids. _G__________

d) Stacked particles in the inner membrane of mitochondria. _________________© 2012 eTutorWorld Learning Solutions Private Limited, India, All rights reserved.

Are there living beings without cells?

• No• Yes

Give reason

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Let’s try to label the cellular parts

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How are these two types of cells different ?

Write in points .

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THANK YOU