Biology 1.1.2

Question 1

The 5 main Subcellular structures in Animal Cells are:

Answer 1

-Nucleus

-Cell Membrane

-Mitochondria

-Ribosomes

-Cytoplasm

Question 2

Some Subcellular structures are only visible under an…

Answer 2

Electron Microscope.

Question 3

Functions of Nucleus: (1)

Answer 3

-Contains Genetic Material (DNA) which controls the cell’s activities.

Question 4

Functions of Cytoplasm: (3)

Answer 4

-Gel-like substance composed of water and dissolved Solutes.

-Supports internal Cell structures.

-Site of many Chem. Reactions.

Question 5

Functions of Cell Membrane: (2)

Answer 5

-Holds the Cell together.

-Controls which substances enter & exit.

Question 6

Functions of Ribosomes: (2)

Answer 6

-Found in Cytoplasm.

-Protein Synthesis.

Question 7

Functions of Mitochondria: (2)

Answer 7

-Aerobic Respiration, releases energy. The Mitochondria is the Powerhouse of the Cell.

-More Mitochondria = higher Metabolism.

Question 8

What Subcellular structures do Plant Cells have that Animal Cells don’t? (3)

Answer 8

-Cell Wall

-Permanent Vacuole

-Chloroplasts

Question 9

Functions of Cell Wall: (2)

Answer 9

-Made of Cellulose.

-Gives the Cell extra support, defines shape.

Question 10

Functions of Chloroplasts: (1)

Answer 10

-Contains green Chlorophyll, absorbs Light Energy, & the Enzymes needed for Photosynthesis.

Question 11

Functions of Permanent Vacuole: (3)

Answer 11

-Contains Cell Sap, Solution of Sugars & Salts Dissolved in Water.

-Used for storage of certain materials.

-Supports shape of Cell.