martes, 15 de enero de 2013

Animal and Plant Cell Structures


Structure

Description

In animals?
In plants?
Cell membrane
- Covers the entire cell
- Acts like gatekeeper to control movement of material in and out of cell
Yes
Yes
Cell wall
- Rigid material that surrounds, protects and supports the cell membrane
- Allow gases, water and some minerals to pass through
No
Yes
Centriole
- Small protein structure critical to cell division
Yes
No
Chloroplasts
- Organelle containing chlorophyll
No
Yes
Chromosomes
- Threadlike structure containing genetic or hereditary info
- Contains many different genes
Yes
Yes
Cytoplasm
- Area of cell where nutrients are absorbed, transported and processed
- Contains number of different organelles
Yes
Yes
Endoplasmic reticulum
- Series of canals that carry materials throughout the cell
Yes
Yes
Golgi bodies
- Structure that stores proteins until they are needed inside/outside the cell
Yes
Yes
Lysosome
- Saclike structure formed by Golgi body
- Contains proteins to break down
Yes
No
Mitochondria
- Tiny, oval-shaped organelle that provides cells with energy
Yes
Yes
Nucleolus
- Spherical structure within the nucleus of some cells
- Probably involved in the making of proteins
Yes
Yes
Ribosome
- Organelle that builds proteins essential for cell growth and reproduction
Yes
No
Nucleus
- Act as the control centre directing all cell activities
Yes
Yes
Vacuole
- Small membrane-surrounded compartment that stores water, wastes and other materials
- Much larger in plant cells
Yes
Yes