Eukaryotic Plant Cells

Question 1

PLANTS DO NOT CONTAIN CENTRIOLES

Answer 1

PLANTS DO NOT CONTAIN CENTRIOLES

Question 2

Unlike animal cells what are plants outermost boundaries?

Answer 2

• the cell wall

Question 3

What is the cell wall mainly composed of ?

Answer 3

Carbohydrate polymer called cellulose

Question 4

What is the function of a cell wall?

Answer 4

Prevents cell from bursting

Question 5

What is the function of the vacuole?

Answer 5

• in plant cells the large cell vacuole maintains STABILITY
• the large cell vacuole is filled with WATER and SOLUTES (cell sap)
• this pushes the cytoplasm against the cell wall making the cell turgid and thus helping to support the plant

Question 6

What is the TONOPLAST?

Answer 6

The TONOPLAST is the name of the membrane that surrounds the vacuole

Question 7

What are chloroplasts?

Answer 7

• oval, flattened shaped organelles

- chloroplasts have a double membrane –> chloroplast envelope which is permeable to many small ions

Question 8

What are the function of chloroplasts?

Answer 8

• chloroplasts are the organelles in which photosynthesis takes place producing SUGARS and other ORGANIC NUTRIENTS for the cell
• chloroplasts are filled with a photosynthetic green pigment called chlorophyll which traps the energy from sunlight

Question 9

What are thylakoids?

Answer 9

Fluid filled sacs

Question 10

What do thylakoids do?

Answer 10

Thylakoids are stacked up in the chloroplasts into structures called granum

Question 11

What are contained within the inner membrane of the chloroplasts and surrounding thylakoids ?

Answer 11

• contained within the inner membrane of the chloroplast and surrounding the thylakoids is a gel-like substance called the STROMA
  It contains enzymes and sugars all needed for photosynthesis