The Plant Cell

Plant Cell:
It is made up of

• Cytoplasm which contains chemicals and tiny structures that carry out special function.
• Cell wall which gives the plant cell a regular shape and provides the cell a mechanical support.
• Cell membrane which controls things that goes in and out of the cell.
• Vacuole which is a single large space that contains cell sap made up of water, sugar and mineral salt.
• Chloroplast which contains chlorophyll that enables the plant to photosynthesis.
• Nucleus which controls all activities that is happening in the cell

• Mitochondria which is the site for the plant to respire and produce energy.

Done By :Group 4
Regine Chong(11)
Genevieve Shing (13)
Vanissa Lee(34)
Roshan (27)

Lss Group 9: Root Hair Cell Model

This is a picture of a red blood cell.

Red blood cell is a hemoglobin-containing blood cell that transports oxygen and some carbon dioxide to and from tissues. They are the most common type of blood cell delivers oxygen from the lungs or gills to body tissues via the blood.
Lacking a nucleus and organelles such as mitochondria, the mammalian red blood cells do not use any of the oxygen they transport for their own needs.

Done By:Janna Lim, Charisse Su, Melissa Khoo, Megan Yeo

Temperature ( Group 7)

Temperature( Group 7)

Thermometers!!

Temperature(Group 7) Laboratory Thermometer

group 7 post 2

Digital thermometer
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Infrared thermometer
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laboratory thermometer
rapidonline.com
DIFFERENT TYPES OF THERMOMETERS
Many methods have been developed for measuring temperature. Most of these rely on measuring some physical property of a working material that varies with temperature. One of the most common devices for measuring temperature is the glass thermometer. This consists of a glass tube filled with mercury or some other liquid, which acts as the working fluid. Temperature increases cause the fluid to expand, so the temperature can be determined by measuring the volume of the fluid. Such thermometers are usually calibrated so that one can read the temperature simply by observing the level of the fluid in the thermometer. Another type of thermometer that is not really used much in practice, but is important from a theoretical standpoint, is the gas thermometer.
Other important devices for measuring temperature include:
Thermocouples
Thermistors
Resistance Temperature Detector (RTD)
Pyrometers
Langmuir probes (for electron temperature of a plasma)
Infrared
Other thermometers
http://en.wikipedia.org/wiki/Temperature_measurement
done by:Nicole,Amanda,Mika and Alisha