Chapter 2: Cell as the Basic Unit of Life

Cells can undergo x process to form new cells and replace damaged cells. What is x ?

• respiration

• Division

• photosynthesis

• Homeostasis

What are the components that exist in animal cells ?

• Nucleus, cytoplasm, mitochondria, cell membrane

• Cell membrane, cell wall, cytoplasm, mitochondria

• Chloroplast, nucleus, cell wall, mitochondria

• Mitochondria, vacuole, cell membrane, nucleus

Tags

NGSS.MS-LS1-2

Which of the following statements is correct ?

• Animal cells has vacuole

• Plant cells didn't have cell membrane

• Chloroplast exist in plant cells

• Nucleus only exist in animal cells

Which of the following components in cell controls all activities in the cell and contains chromosomes consisting of DNA ?

• Cell membrane

• Nucleus

• Mitochondria

• Cell wall

Tags

NGSS.MS-LS1-2

Which of the following are the unicellular organisms ? (answer can be more than one)

• Paramecium

• Amoeba

• Hydra

• Euglena

• Spirogyra

What is the function of Epithelium cell ?

• Send information (impulse)

• Protects the surface layer of the skin and internal organs

• Transport oxygen

• Destroy bacteria

What is the function of Guard cells ?

• Reduces the water loss and enable the gaseous exchange

• Control the size of the stoma (leaf pore)

• Contain a large amount of chloroplasts for photosynthesis

• Absorb water and mineral salts from the soil

Which of the following components exist in plant cell but do not existed in animal cell ?

I - Cell wall

II - Chloroplast

III- Cell membrane

IV- Vacuole

• I and III

• II and III

• I, II and III

• I,II and IV

What does this image represent?

• Nuclues
• Cell division
• Prokaryotic Cells
• Uni-Celluar

Who is the first person to identify cells using microscope?

• Robert Hooke

• Theodor

• Khoo Kay Kim

• Hooke