Question:
Identify cell organelle and write down its name:
Thread like structures made up of in DNA and proteins. Converts to chromosomes when cell is dividing.
The Fundamental Unit of Life
Q 1.
Name the biggest cell in human body.
Q 2.
Who proposed fluid-mosaic model of cell or plasma membrane?
Q 3.
What are chromosomes?
Q 4.
Who expanded cell theory by suggesting that all cells arise from pre-existing cells?
Q 5.
Identify cell organelle and write down its name:
Present in some animal cells, help in locomotion.
Q 6.
What are the components nucleus?
Q 7.
Identify cell organelle and write down its name:
A network of flattened cavities surrounded by a membrane, which links with the nuclear membrane. Help in packaging proteins.
Q 9.
What is the function of nucleoplasm?
Q 10.
What is the full form of DNA and RNA?
Q 11.
Name the cell organelles which their own DNA and Ribosomes.
Q 12.
When chromosomes are visible in the nucleus?
Q 13.
Identify cell organelle and write down its name:
Powehouse of cell
Q 15.
Name the cell type that have internal membranes which compartmentalize their functions.
Q 16.
Define Passive Transport.
Q 18.
Define Osmosis. What are different types of osmosis? Give examples of osmosis.
Q 19.
Who discovered Golgi apparatus?
Q 20.
What is osmoregulation?
Q 21.
What are centrosomes? What functions do they perform?
Q 22.
Identify cell organelle and write down its name:
Jelly like substance containing particles and other organelles. What is it?
Q 23.
Identify cell organelle and write down its name:
A fluid-filled space surrounded by a membrane. Generally contains salts and sugars in plants.
Q 24.
Who proposed the cell theory?
Q 25.
Name the longest cell in human body.
Q 26.
What is the plasma membrane composed of?
Q 27.
Which organ of the plant body helps in osmoregulation?
Q 28.
Which cell organelle is called 'kitchen of plant'?
Q 29.
Why is mitochondria absent in red blood cells?
Q 30.
Identify cell organelle and write down its name:
Slipper or oval shaped, its inner membrane is multi-folded and has lot of chemical activity
Q 31.
Identify cell organelle and write down its name:
Membrane-bound vesicles arranged approximately parallel to each other. Active in synthesis, modification, sorting, and Secretion of cell products
Q 32.
Who observed the cells the first time?
Q 33.
Name the book in which Robert Hooke published his observations about cork cells.
Q 34.
Name the two postulates of the cell theory.
Q 35.
Name the world's smallest cell.
Q 36.
What is plasmolysis?
Q 37.
What will happen if a de-shelled egg in a concentrated salt solution for 5 minutes?
Q 38.
Which organelle of the cell in animals helps in osmregulation?
Q 39.
Which cell organelle is called 'transport system'?
Q 40.
What are the functions of Endoplasmic Reticulum (ER)?
Q 41.
What is cytoskeleton?
Q 42.
Name the cell organelles which change energy from one form to another.
Q 43.
Which of the following cell is better candidate to study lysosomes?
(a) White Blood Cell
(b) Muscle Cell
Q 44.
Identify cell organelle and write down its name:
A partially permeable layer prevents cell contents from escaping controls what substances enter and leave the cell. Identify?
Q 45.
Identify cell organelle and write down its name:
Contains green colour pigment, traps light energy. Present in some plant cells.
Q 46.
Identify cell organelle and write down its name:
Appear brown dots either present freely in cell or bound to a membrane and make proteins.
Q 47.
Identify cell organelle and write down its name:
Thread like structures made up of in DNA and proteins. Converts to chromosomes when cell is dividing.
Q 48.
Identify cell organelle and write down its name:
A structure involved in production of ribosomes, present inside a nucleus.
Q 49.
Name the largest cell?
Q 50.
Name the smallest cell in human body.
