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Flashcards in Plant Cells Deck (10)
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1
Q

What are chloroplasts

A

Chloroplasts are sites of photosynthesis.
Has membrane on inside which forms stacks (sites of photosynthesis).
Has own ribosomes and their own DNA.

2
Q

Amyloplasts

A

Amyloplasts are storage vacuoles in cytoplasm. Contain starch and have double membrane on outside.

3
Q

Cell wall

A

Cell wall is membrane of cell that forms external to cell membrane

4
Q

Role of cell wall

A

Role of cell wall is to give cell rigidity, strength and protection against mechanical stress.

5
Q

Vacuole

A

Vacuole is a membrane bound vesicle in cytoplasm.
Involved in storage and support.
When cell takes up water (turgid), vacuole keeps plant stable

6
Q

Functions of vacuole

A

Functions of vacuole include: intracellular secretion (synthesizing and releasing substances from interior of cell to exterior), excretion, storage and digestion.

7
Q

Tonoplast

A

Tonoplasts are cytoplasmic membrane surrounding vacuole, separating vascular contents from cytoplasm

8
Q

Plasmodesmata

A

Plasmodesmata is a microscopic channel of plants facilitating transport and communication between individual cells. The cells are connected by strands of cytoplasm

9
Q

Middle lamella

A

Middle lamella is region found between cell walls of adjacent cells. Has pectin

10
Q

Pits

A

Pits are places where cell wall is thin, so only 1 layer of cellulose is deposited. Pits are pores going through cell wall. Only found in plant cells. Allow exchange of material between plant cells