Cell Biology (IFS (Forests Services) Botany (Mains)): Questions 1 - 9 of 9

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Question number: 1

» Cell Biology » Techniques

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Appeared in Year: 2015

Short Answer Question▾

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What are ‘carrier proteins’? Describe the ion uptake mechanism in plants mediated by carrier proteins. (Paper 2, Section B)

Question number: 2

» Cell Biology » Cell Cycle

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Appeared in Year: 2015

Essay Question▾

Describe in Detail

Write brief notes on: “Tricarboxylic acid cycle is an amphibolic process. ” Explain. (Paper 2, Section B)

Explanation

  • Tricarboxylic acid cycle (TCA) is also called as Citric acid cycle or Kreb’s cycle.
  • Amphibolic pathway is a biochemical pathway that serves both anabolic and catabolic processes. An important example of an amphibolic pathway is the Krebs cycle, which involves both the catabolism of carbohydrates and fatty acids and the synthesis of anabolic prec

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Question number: 3

» Cell Biology » Ribosomes

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Appeared in Year: 2014

Essay Question▾

Describe in Detail

Explain the following in about 150 words each: Ribosomes are synthesized? (Paper 2 - Section A)

Explanation

  • Ribosome is a complex of ribosomal ribonucleic acid (rRNA) and protein.

  • The rRNA part is synthesized from the original message called DNA in the nucleus, particularly in a region called nucleolus.

  • Molecules of rRNA are synthesized in a specialized region of the cell nucleus called the nucleolus, which appears as a dense area within the nuc

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Question number: 4

» Cell Biology » Chromosomes

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Appeared in Year: 2014

Essay Question▾

Describe in Detail

Explain the following in about 150 words each: Basic chromosome number may be different from haploid number. (Paper 2 - Section A)

Explanation

  • The number of chromosomes per cell is fixed for a given species.
  • In human beings, the number of chromosome is 46, this is called diploid number where in gametes, and the number of chromosomes is only half of the diploid number and is 23 and is called haploid number. The haploid chromosome number is produced during meiosis.
  • An organism with any

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Question number: 5

» Cell Biology » Techniques

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Appeared in Year: 2013

Short Answer Question▾

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Write short notes on: Freeze-fracture technique

Question number: 6

» Cell Biology » Cell Adhesion

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Appeared in Year: 2013

Short Answer Question▾

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Write Short Notes on: Extrinsic and Intrinsic proteins

Question number: 7

» Cell Biology » ER

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Appeared in Year: 2013

Essay Question▾

Describe in Detail

Describe the structure and functions of Endoplasmic Reticulum.

Explanation

  • Definition: The electron microscope reveals an extensive membrane system in the cytoplasm is called endoplasmic reticulum (ER).

  • The word endoplasmic reticulum was used for a lace-like network of tubules and vesicles observed by Porter, Claude and Fullam in 1945 in the first electron micrograph of cell.

    Structure:

  • Endoplasmic reticulum i

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Question number: 8

» Cell Biology » Prokaryotic and Eukaryotic Cells

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Appeared in Year: 2013

Short Answer Question▾

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Write Short Notes on: Ultrastructure of Golgi apparatus and its chemical constituents

Question number: 9

» Cell Biology » Prokaryotic and Eukaryotic Cells

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Appeared in Year: 2014

Essay Question▾

Describe in Detail

Differentiate between prokaryotes and eukaryotes.

Explanation

Prokaryotes are organism which have prokaryotic type of cells whereas eukaryotes are the organism which have Eukaryotic type of cells.

  • prokaryotic are basically one envelope system in comparison to Eukaryotic they are smaller in size.

  • unlike Eukaryotic they lack double membrane cell organelle e. g. endoplasmic reticulum mitochondria chloro

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