Question

Describe the function of each of the structures in bold in the previous question.

-cell wall

-chloroplasts

-chromoplasts

-chromatin

-cytoskeleton

-leucoplasts

-nuclear envelope

-nucleolus

-rough endoplasmic reticulum

-smooth endoplasmic reticulum

-vacuole

-vesicles

Answer 1

Ans:

The function of the each structures:

Cell wall :  Provides structural support. It provides protection against infection and mechanicsl stress. It prevents water loss.

Chloroplasts: Play role in photosynthesis.

Chromoplasts: Found in fruits, flowers and leaves. They are responsible for their distinctive colours.

Chromatin: The function of chromatin is to efficiently package DNA into a small volume to fit into the nucleus of a cell and protect the DNA structure and sequence.

Cytoskeleton: It gives cell its shape, offers support and facilitates movements through three comonents: microfilaments, intermediatery filaments and microtubules.

Leucoplasts: Perform various function such as storage of starch, lipids or proteins.

Nuclear envelope: Regulates what material enters or exit the nucleus.

Nucleolus: It makes ribosomal subunits from proteins and ribosomal RNA.

Rough endoplasmic reticulum: Play role in protein synthesis.

Smooth endoplasmic reticulum: It is largely a manufacturing organelle, making and distributing the molecules that particular types of cell needs.

Vacuole: Plays a key role in regulating the cells concentration of water in changing environmentals conditions.

Vesicles: Involved in metabolism, transport and enzyme storage.