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Parts of a Cell (Worksheet, Explanation and Quiz)

Grade 6 Science Worksheets

The cell is the basic unit of life and understanding its parts is crucial to understanding how living organisms function. Each part of a cell has a specific function that contributes to the overall health and survival of the cell.

From the nucleus to the cytoplasm, the parts of a cell work together to perform a wide range of functions, such as protein synthesis, energy production, and cellular division.

In this article, we will delve into a cell’s various parts and functions. You can also download parts of a cell worksheet for Grade 6.

The Cell Packs a Punch!

For its size, the cell has quite a complex cell structure. Each part of the cell has to perform a unique function.A living cell is like a tiny chemical factory. It has a control center that tells it what to do and when to do it. It has a tiny power plant that generates energy. And it has various machinery for making its products or performing its services. Put your knowledge to the test with this challenging 6th Grade Science Worksheet! Read each question carefully and choose the response that you feel is correct.

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The cell has two main parts – the nucleus and the cytoplasm.

Diagram of Parts of a Cell
  1. The Nucleus

This is the control center that directs all the activities of the cell. It is the heart of the cell. It contains thread like structures called Chromosomes, which are made up of proteins and DNA. DNA stands for Deoxyribonucleic Acid. Each chromosome contains genes-the basic units of heredity. Genes determine what characteristics to pass on to the next generation. The nucleus also contains Nucleoli, which hold RNA and other proteins, and help in the formation of Ribosomes. Ribosomes are the center for protein production. RNA stands for Ribonucleic Acid.

The nucleus is surrounded by a Nuclear Membrane that controls which materials can move in or out of the nucleus. Doubts? A 6th-grade science tutor can help.

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2. The Cytoplasm

The cytoplasm surrounds the nucleus. It has many tiny structures within it, called Organelles, which are responsible for many of the cell’s activities.

Mitochondria produce almost all the energy that the cell requires to live and to work. They are power producers.

Endoplasmic Reticulum is a complex structure that is responsible for the production of proteins and their transport between various regions of the cytoplasm or between the cytoplasm and the nucleus.

Centrosomes are organelles mainly found in animal cells next to the nuclei and are responsible for cell reproduction. They contain microtubules known as centrioles that help in cell division.

Lysosomes are round bodies containing digestive enzymes which help in breaking down many substances, such as harmful bacteria.

Golgi Complex or Golgi Apparatus is yet another vital part that acts as the packaging center of the cell, responsible for taking in proteins, modifying them, and then packaging them into containers called Vesicles. These proteins are later shipped out of the cell. The Golgi apparatus also produces lysosomes.

Chloroplasts are organelles found only in the cytoplasm of plant cells that contains a green substance called Chlorophyll which helps in the process of photosynthesis.

The nucleus, the cytoplasm, and all the organelles within it are all enclosed by the cell membrane. Most cell membranes are double-layered and their main function is to allow material in and out of the cell.

Check Point

  1. Chromosomes and genes are found in the _____ of the cell.
  2. RNA helps in the formation of ______ which are the center for protein production.
  3. The various parts of the cytoplasm are called ______.
  4. ______ are responsible for cell reproduction.
  5. ______ is the organelle responsible for taking in proteins, modifying them, and packaging them into containers.
  6. What are the two types of nuclear reactions?

Answer Key

  1. Nucleus
  2. Ribosomes
  3. Organelles
  4. Centrosomes
  5. Golgi complex or Golgi apparatus
  6.  Nuclear Fission & Nuclear Fusion.

Frequently Asked Questions (FAQs)

What is a cell?

A cell is the basic unit of life that makes up all living organisms. Cells are responsible for carrying out all of the functions necessary for life.

What are the parts of a cell?

The parts of a cell include the nucleus, mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, cytoplasm, cell membrane, and cytoskeleton.

What is the function of the nucleus?

The nucleus is the control center of the cell and is responsible for storing genetic information (DNA) and regulating gene expression.

What is the function of ribosomes?

Ribosomes are responsible for synthesizing proteins, which are essential for the structure and function of cells.

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