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NCERT Solutions class 9 Science 5. The Fundamental Unit of Life Additional -Questions

Get complete NCERT Solutions for 9 Science 5. The Fundamental Unit of Life with detailed explanations. Easy-to-understand answers to help students study effectively and score better.

NCERT Solutions class 9 Science 5. The Fundamental Unit of Life Additional -Questions

NCERT Solutions class 9 Science 5. The Fundamental Unit of Life Additional -Questions

Get complete NCERT Solutions for 9 Science 5. The Fundamental Unit of Life with detailed explanations. Easy-to-understand answers to help students study effectively and score better.

9 Science Chapter 5. The Fundamental Unit of Life - Additional -Questions

Preparing for exams becomes easier with Additional -Questions. Whether you are studying for board exams or mid-term exams, 9 Science Chapter 5. The Fundamental Unit of Life solutions provide quick revising points, well-structured answers, and additional practice material to help you score better.

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5. The Fundamental Unit of Life

Additional -Questions


Nucleus – Nucleus is a largest cell organelle which consists inside the cell. Nuclei are found in all eukaryotic cells. It contains chromatin.

Cytoplasm –

Ribosomes : They are extremely small round bodies present either in free state in the cytoplasm.

Functions :

  1.  it is responsible for synthesis of proteins from amino-acid.
  2. They provide a surface for bio-chemical activities of the cell.                          

Q – Distinguish between plant and animal cell.

A –

Plant cell

Animal cell

  1. It has cell wall.
  2. Chloroplast is present.
  3. Vacuoles are large in size.
  4. The process of photosynthesis occurs in it.
  1. It has not cell wall.
  2. Chloroplast is not present.
  3. Vacuoles are mostly absent or present is very small size.
  4. The process of photosynthesis doesn’t occur in it.

 

Q – write the differences between prokaryotic cell and Eukaryotic cell.

prokaryotic cell

Eukaryotic cell

  1.  It is often small in size.
  2. Nucleus membrane is absent.
  3. It has one chromosome.
  4. There mostly cell organelles are absent. 

 

  1. Example. Yeast cell
  1. It is often large in size.
  2. Nucleus membrane is present.
  3.  It has more than one chromosomes.
  4. There mostly cell organelles are present.
  5. Example: All multicellular organism.

 

 

Q – How does an Amoeba obtain its food?

A – Amoeba obtains its food by the process of endocytosis, in which it take food from outside by the help of its body surface. It encloses the food by plasma membrane. It engulfs the food and digest it.

Q – Why is plasma membrane is called selectivity permeable membrane?

A – The plasma membrane allows or permits the entry and exit of some material in and out of the cell, therefore it is called a selectivity permeable membrane.

Q – What is Osmosis?

A – Water also obeys the law of diffusion. The movement of water molecules through such a selectively permeable membrane is called Osmosis.

 

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📘 Why Additional -Questions are Important?

Additional -Questions are created by experts to give step-by-step explanations. Around 60–70% of exam questions are based on NCERT concepts. Our 9 Science Chapter 5. The Fundamental Unit of Life solutions help you understand the core concepts and practice effectively.

✍️ Quick Revising Points as Notes in Page-1

Revision is the key to exam success. Our notes for 9 Science highlight important formulas, key definitions, and exam-ready points from Chapter 5. The Fundamental Unit of Life. These quick revision notes make last-minute preparation easy.

📚 NCERT Exercise Solutions

Every NCERT chapter ends with exercises, and solving them is crucial. Our Additional -Questions include complete solutions for 9 Science Chapter 5. The Fundamental Unit of Life exercises. With step-by-step answers, you gain clarity and confidence to attempt similar exam questions.

📝 Additional Important Questions & Answers

To boost your preparation, we also provide additional important questions with answers. These are prepared from previous year board papers, sample papers, and important concepts of Chapter 5. The Fundamental Unit of Life. Practicing these ensures you are well-prepared for both board and mid-term exams.

🎯 Useful for Board & Mid-Term Exams

Our Additional -Questions are useful for both board exams and mid-term exams. For 9 Science, we provide notes, exercises, and important Q&A so that you can revise smartly and write perfect answers in exams.

🌟 Final Words

In short, Additional -Questions for 9 Science Chapter 5. The Fundamental Unit of Life are a complete study package. With quick revising points, NCERT exercises, and additional important questions, you can prepare effectively for exams. Make these solutions your study companion and excel in your academic journey.

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