Which organelle is known as the powerhouse of the cell? Why?
Solution and Explanation
The organelle mitochondria known as the powerhouse of the cell. Process of cellular respiration takes place in mitochondria to generate energy required for various chemical activities in the form of ATP.
This is the reason that mitochondria is known as powerhouse of the cell.
Top Questions on What is a Cell Made Up of? What is the Structural Organisation of a Cell?
- Which type of cell division is required for growth and repair of body and which type is involved in formation of gametes?
- CBSE Class IX
- Science
- What is a Cell Made Up of? What is the Structural Organisation of a Cell?
- What is osmosis?
- CBSE Class IX
- Science
- What is a Cell Made Up of? What is the Structural Organisation of a Cell?
- Carry out the following osmosis experiment: Take four peeled potato halves and scoos each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now,
- Keep cup A empty
- Put one teaspoon sugar in cup B
- Put one teaspoon salt in cup C
- Put one teaspoon sugar in the boiled potato cup D. Keep these for two hours. Then observe the four potato cups and answer the following:
- Explain why water gathers in the hollowed portion of B and C.
- Why is potato A necessary for this experiment?
- Explain why water does not gather in the hollowed-out portions of A and D.
- CBSE Class IX
- Science
- What is a Cell Made Up of? What is the Structural Organisation of a Cell?
- How does an Amoeba obtain its food?
- CBSE Class IX
- Science
- What is a Cell Made Up of? What is the Structural Organisation of a Cell?
- Where do the lipids and proteins constituting the cell membrane get synthesized?
- CBSE Class IX
- Science
- What is a Cell Made Up of? What is the Structural Organisation of a Cell?
Questions Asked in CBSE Class IX exam
- Explain what the reasons for the following are.
(i) Einstein leaving the school in Munich for good.
(ii) Einstein wanting to study in Switzerland rather than in Munich.
(iii) Einstein seeing in Mileva an ally.
(iv) What do these tell you about Einstein?- CBSE Class IX
- A truly beautiful mind
- (i) The kind of person the doctor is (money, possessions)
(ii) The kind of person he wants to be (appearance, ambition)- CBSE Class IX
- The snake and the mirror
In Fig. 9.26, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠ BEC = 130° and ∠ ECD = 20°. Find ∠ BAC.
- CBSE Class IX
- Angle Subtended by an Arc of a Circle
- Name the two temples the author visited in Kathmandu.
- CBSE Class IX
- Kathmandu
Look up the dictionary entries for the words sympathy, familiarity, comfort, care, and surprise. Use the information given in the dictionary and complete the table.
Noun, Adjective, Adverb, Verb, Meaning:
sympathy
familiarity
comfort
care
surprise- CBSE Class IX
- If I were you
Concepts Used:
Cell: The Unit of Life
- A cell is derived as the functional and structural unit of life. Every cell is surrounded by a cell membrane that dissects the external and internal environments of the cell. The interior environment of a cell is called the cytoplasm.
- It carries cellular machinery and structural elements. The nucleus is present in the center of the cell, which includes all the hereditary information of an organism. Some of the molecules present in the cell are protein, carbohydrates, starch, and sugar.
Read More: Fundamental Unit of Life: Cell
Parts of Cell:
The different parts of a cell and their functions are as follows:
- Cell Membrane
- Cell Wall
- Nucleus
- Cytoplasm
