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Flashcards in Organelles Deck (15)
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1

Define organelles

Small structures inside cells that perform a specific function

2

What is the structure of a nucleus

A spherical structre enclosed by a double layer of plasma membrane which has pores and also contains a nucleolus

3

Role of nucleus

Composed of chromosomes which contain the cells genetic DNA material

4

Role of the mitochondria

Site of aerobic respiration and provides energy for the cell in the form of ATP.

5

Where are ribosomes found?

Floating alone in the cell or attached to the e.r

6

Role: Ribosomes

Site of protein synthesis

7

Structure: Ribosomes

Non-membrane bound organlles that are made up of rRNA and protein

8

Role: Rough ER

Involved in the synthesis and transportation of proteins

9

Structure: Rough ER

A series of membrane bound channels, studded with proteins

10

Role: Smooth ER

Involved in the synthesis and transportation of lipids

11

Role: Golgi Apparatus

Stores, modifies and pacakages synthesised proteins for secretion from the cell

12

Role and structure of lysosomes

Membrane bound strcutres that contain digestive enzymes> lysosomes digest any unwanted structures or substances inside the cell

13

Define cytosol

Fluid inside the cell that surrounds the organelles

14

Define cytoplasm

Fluid inside the cell that includes the cytosol and the fluid inside all the organelles exept the nucleus

15

Define protoplasm

All the fluid inside the cell including the cytoplasm and the fluid inside the nucleus