16. Given alongside is the
diagram of a cell. Study 3
the same and answer
the questions that
follow :
i crol
1
2
4
5
O
(i) Name the parts
1, 2, 3 and 4
indicated by the
guidelines.
(ii) State the
functions of
parts 2 and 4.
(iii) Draw a labelled diagram of the organelle '5' as
seen under the electron microscope.
17. Describe the structure of Mitochondrion.
F
Answers
name all parts - (1) Endoplasmic reticulum (2) mitochondria (3) Nucleus
(4) neucleous (5) cytoplasm
Cell Organelle and its Functions
Nucleolus
The nucleolus is the site of ribosome synthesis. Also, it is involved in controlling cellular activities and cellular reproduction
Nuclear membrane
The nuclear membrane protects the nucleus by forming a boundary between the nucleus and other cell organelles.
Chromosomes
Chromosomes play a crucial role in determining the sex of an individual. Each human cells contain 23 pairs of chromosomes
Endoplasmic reticulum
The endoplasmic reticulum is involved in the transportation of substances throughout the cell. It plays a primary role in the metabolism of carbohydrates, synthesis of lipids, steroids and proteins.
Golgi Bodies
Golgi bodies are called the cell’s post office as it is involved in the transportation of materials within the cell
Ribosome
Ribosomes are the protein synthesisers of the cell
Mitochondria
The mitochondrion is called “the powerhouse of the cell.” It is called so because it produces ATP – the cell’s energy currency
Lysosomes
Lysosomes protect the cell by engulfing the foreign bodies entering the cell and helps in cell renewal. Therefore, it is known as the cell’s suicide bags
Chloroplast
Chloroplasts are the primary organelles for photosynthesis. It contains the pigment chlorophyll
Vacuoles
Vacuoles stores food, water, and other waste materials in the cell
May your all doubt was clear