Question

Golgi apparatus is absent in:
A) Liver cells
B) Higher plants
C) Blue green algae
D) Yeast

Answer 1

Hint:Golgi apparatus is an important cell organelle found in organisms and it is involved in secretion and packaging of proteins. It is also a site for synthesis of various glycolipids.

Complete answer:
Golgi apparatus, also known as golgi bodies or golgi complex was discovered by Camilio Golgi and it was named in honour of its founder. Golgi apparatus are formed by cup shaped compartments called cisternae.
Functions of Golgi apparatus:
>Packaging and secretion of proteins.
>Takes part in transport of lipids.
>Helps in formation of lysosomes
>Synthesis of various glycolipids are done in golgi apparatus
>The complex polysaccharides of plant cell walls are synthesized in golgi apparatus.

Let's have an analysis on the options for the correct answer.
>Option A : Golgi apparatus are found in liver cells. Therefore, this is the incorrect option.
>Option B : Golgi apparatus are present in higher plants. Therefore, this is the incorrect option.
>Option C : Golgi apparatus are absent in blue green algae. Apart from blue green algae, golgi apparatus are absent in other prokaryotic cells such as bacteria, PPLO (Pleuropneumonia Like Organisms). They are also absent in sieve tubes of plants and RBC (Red Blood Cells) of animals. Therefore, this is the correct option.
>Option D : Golgi apparatus are present in yeasts. Therefore, this is the incorrect option.

Thus, the correct option is (C) Blue green algae.

Note:The position of golgi bodies apparatus varies in different eukaryotes.
(i) In mammals, they are located near the cell nucleus, close to centrosomes and are interlinked with the help of microtubules.
(ii) In yeasts, they are scattered throughout the cytoplasm
(iii) In plants, golgi apparatus are not found near centrosomes and are not organized by microtubules.