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How many organelles of a eukaryotic cell are considered to have an independent existence during early events of evolution?

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Important Questions on Cell : The Unit of Life

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Gamma Question Bank for Medical Biology>Chapter 8 - Cell : The Unit of Life>Assignment>Q 16
Consider the following five statements (A to E) w.r.t. chloroplast is shown below. Select the correct option stating which ones are True (T) and which ones are False (F).

Consider the following five statements A to E with respect to the chloroplast shown below. Select the correct option stating which ones are True T and which ones are False F.A. It
A. It is impermeable and lacks porins.
B. It is selectively permeable, having carrier proteins for transport.
C. Stacked thylakoids one over the other which is the site of production of assimilatory power.
D. Present between two grana and contains enzymes of dark reaction.
E. It contains enzymes for the synthesis of sugar and proteins.

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Gamma Question Bank for Medical Biology>Chapter 8 - Cell : The Unit of Life>Assignment>Q 17
Find the correct set of structures/organelles not surrounded by membrane.
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Gamma Question Bank for Medical Biology>Chapter 8 - Cell : The Unit of Life>Assignment>Q 18
The larger sub-unit of a ribosome is found to contain 28 S, 5.8 S and 5 S types of RNA. This ribosome is found in
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Gamma Question Bank for Medical Biology>Chapter 8 - Cell : The Unit of Life>Assignment>Q 19
Organelle lacking DNA, but capable of duplication is
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Gamma Question Bank for Medical Biology>Chapter 8 - Cell : The Unit of Life>Assignment>Q 20
Each centriole has a cart wheel organisation having a whorl of tubulin fibrils at periphery. These peripheral fibrils are composed of how many microtubules?
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Gamma Question Bank for Medical Biology>Chapter 8 - Cell : The Unit of Life>Assignment>Q 21
Find out all the proteins that make eukaryotic flagellum.
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Gamma Question Bank for Medical Biology>Chapter 8 - Cell : The Unit of Life>Assignment>Q 22
Consider the following statements and choose the incorrect option
a. Large and more numerous nucleoli are present in cells actively carrying out protein synthesis.
b. Nuclear pores allow bidirectional movement of molecules.
c. Cytoskeleton is a glycolipid structure for mechanical support, motility, and maintenance of the shape of the cell.
d. Steroidal hormones are synthesized by the Golgi complex.
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Gamma Question Bank for Medical Biology>Chapter 8 - Cell : The Unit of Life>Assignment>Q 23
Eukaryotic cells have a well organised nucleus and
a. Both 70 S and 80 S types of ribosomes
b. Flagella associated with 9+2 organisation
c. Shows cytoplasmic streaming
d. Their DNA is complexed with histones to constitute the chromatin