plant structure

Question 1

describe structure & function of chloroplast

Answer 1

thylakoid membranes stacked into grabs
contain chlorophyll
surrounded by stroma- liquid which contains photosynthetic enzymes

Question 2

Describe structure and function of amylosplast

Answer 2

Produces and stores starch composed of amylose and amylopectin. Surrounded by double membrane

Question 3

Vacuole?

Answer 3

Sac filled with cell sap(mix of water, enzymes minerals and waste)
Surrounded with tonoplast(selectively permeable membrane)
- keep cells turgid - stops plant wilting
- break down and isolate unwanted chemicals in plant cells
- tonoplast controls what enters and leaves

Question 4

Plasmodesmata

Answer 4

Extensions if cytoplasm that connect two neighbouring cells, allowing transport of substances

Question 5

Pits

Answer 5

Thin section of cell wall that allow east diffusion, enabling substances to be transferred between cells

Question 6

Relate structure of cellulose to its function

Answer 6

Long beta glucose chains held together by hydrogen bonds to form micro fibrils.

Strings H bonds meaning cellulose is suited to provide structural support