Q. Which of these are not from plastid family?

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Q. Which of the following is responsible for pigment synthesis and storage?

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Q. Which class of leucoplast is responsible for fat storage?

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Q. Name the plant organelle which acts as a major site for an oxidative reaction?

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Q. Cell shape and cellular motility is determined by the ___________

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Q. Singlet microtubule can form a long shaft of cilia and flagella.

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Q. What is treadmilling?

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Q. Which of the following feature is the same in cilia and flagella?

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Q. Name the drug which depolymerizes microtubule to tubulin subunit.

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Q. What is the role of vinblastine and vincristine?

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Q. What is the name of the cell membrane of muscle cells?

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Q. What is the basic functional unit of myofibril?

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Q. Which of the following take part in relaxation of muscles?

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Q. Which of the following is occluding junction?

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Q. Which of the following signal molecule is NOT used for extracellular signaling?

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Q. In endocrine signaling, the signal molecule act on target cell only in close proximity.

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Q. Arrange the following sequence of extracellular signaling in the correct order?

1) Transport of signal to a target
2) Start of signal transduction pathways
3) Signaling cell synthesize and release signaling molecules
4) Binding of the signal to the specific receptor

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Q. Which of the following signaling pathway is followed by T-lymphocytes in response to antigenic stimulation?

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Q. Name the signaling which requires physical contacts between the cells involved.

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Q. Mark the signal molecule which does not interact with cell surface receptor.

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