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Test: Cell Organization - Class 9 MCQ


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10 Questions MCQ Test Online MCQ Tests for Class 9 - Test: Cell Organization

Test: Cell Organization for Class 9 2024 is part of Online MCQ Tests for Class 9 preparation. The Test: Cell Organization questions and answers have been prepared according to the Class 9 exam syllabus.The Test: Cell Organization MCQs are made for Class 9 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Cell Organization below.
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Test: Cell Organization - Question 1

Nuclei were first discovered by

Detailed Solution for Test: Cell Organization - Question 1
Nucleus of a cell then it is discovered by scottish botanist Robert brown in 1831. The presence of a nucleus in an atom was discovered and proved by Nobel Laureate Dr. Ernest Rutherford through his gold leaf scattering experiment.
Test: Cell Organization - Question 2

Which of the following substances are not stored in vacuoles?

Detailed Solution for Test: Cell Organization - Question 2
Vacuoles are storage bubbles found in cells. They are present in both plant and animal cells. They store various substances in them such as:
1.Water
2.Enzymes
3.Various small molecules
4.Organic acids
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Test: Cell Organization - Question 3

Cell wall is absent in

Detailed Solution for Test: Cell Organization - Question 3

Mycoplasma is wall-less smallest living organism.

Test: Cell Organization - Question 4

Name two cell regions containing their own genetic material.

Detailed Solution for Test: Cell Organization - Question 4
  1. Chloroplast and mitochondria are the only two organelles that contain their own genetic material.
  2. Besides containing genetic material they also contain 70S type ribosome, own enzymes and some amount of RNA as well.
  3. They can also undergo fission themselves and thus can multiply themselves.
  4. This is why these two organelles are called semi-autonomous organelles.
Test: Cell Organization - Question 5

Name the plastids in which starch, oils and protein granules are stored?

Detailed Solution for Test: Cell Organization - Question 5
Leucoplasts are cell structures surrounded by a layer of tissue in plant cells. They store starch, oil, and the protein granules. They are a category of plastids. They are colorless as compared to the other plastids like chloroplast. They are located in tissues such as roots, bulbs, and seeds.
Test: Cell Organization - Question 6

What is the full form of ATP?

Detailed Solution for Test: Cell Organization - Question 6

In science, ATP stands for adenosine triphosphate. This chemical, discovered in the 1920s , is important to life.it stores and releases energy for many cellular process.

Test: Cell Organization - Question 7

Which of the following is not a function of golgi apparatus?

Detailed Solution for Test: Cell Organization - Question 7

The Golgi apparatus links carbohydrates with proteins coming from ER to form glycoproteins. This process is called glycosylation. Golgi complex brings about membrane transformation, that is, converting one type of membrane (e.g., that of ER) into other types (e.g., selectively permeable plasma membrane, differentiated membrane of lysosome). This complex also takes part in the recycling of plasma membrane. The Golgi complex modifies, sorts and packages proteins and lipids coming from the ER. Packaging involves wrapping the material by a membrane, forming secretory vesicles. The secretory vesicles pinch off from the ends of the cisternae and appear as dense secretory or zymogen granules in the cytoplasm. Later, these vesicles release their secretions by exocytosis or revere pinocytosis.

Site of protein synthesis is ribosomes.

So, the correct answer is 'Ribosomes'.

Test: Cell Organization - Question 8

Rough endoplasmic reticulum looks rough under a microscope because of

Detailed Solution for Test: Cell Organization - Question 8
The rough endoplasmic reticulum (ER) is called 'rough' because it has organelles called ribosomes attached to the surface.Ribosomes are the organelles that turn mRNA into proteins. These proteins are initially long strings of amino acids. This string has to be folded in the right way to form a functional protein. The rough ER helps with the folding of these amino acid-strings and at the same time prevents their degradation by enzymes in the cell.
Test: Cell Organization - Question 9

Name the plastid important for photosynthesis in plants.

Detailed Solution for Test: Cell Organization - Question 9
Green coloured plastics contains chlorophyll. Chloroplast manufacture their food by the process of photosynthesis.
Test: Cell Organization - Question 10

Which cell organelle is analogous to a power station?

Detailed Solution for Test: Cell Organization - Question 10
Mitochondria is analogous to a power station because mitochondria is responsible for the generation of energy in cells. Hence, mitochondria are also called the power station.
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