Biology Quiz Class 9

The longest cell in human body is

• Red blood cell

• Nerve cell

• Muscle cell

• Fat cell

A prokaryotic cell has

• Nucleus, cell membrane, cytoplasm

• Nucleus, mitochondria, cell membrane

• Nucleoid, cell membrane, ribosomes

• Nucleoid, cell wall, mitochondria

When we sprinkle salt on salad, water comes out because of

• endosmosis

• Exosmosis

• Diffusion

• None of the above

Cell wall of plant cells chiefly composed of

• Phospholipids

• Protein

• Cellulose

• Hemicellulose

Amoeba acquires its food through a process termed as

• Endocytosis

• Exocytosis

• Plasmolysis

• Exocytosis and endocytosis both

What is the example of unicellular organism?

• Amoeba

• Bacteria

• Paramocium

• All of the above

Identity the image :

• Telescope

• Compound microscope

• Microwave

• Toaster

Which statement is true about cell theory?

• Cell theory states that all cells are non­living.

• Cell theory states that cells can come from non­living

  things.

• Cell theory states that all cells arise from other cells.

• Cell theory says animal cells are the only type of

  living cells.

stiff, protective outer layer of plant cells

• cell membrane
• nuclear membrane
• cell wall
• cytoplasm

Cell organelles are embedded in

• Nucleolus
• Cytoplasm
• Protoplasm
• Mitochondria