science
Science Revision
Half-Yearly's
Name the lenses found in a microscope.
Eyepiece or ocular lens
Objective lens
Recall the units used to measure microscopic objects.
Micrometres
Recall what happens to the field of view as the magnification used increases.
As the magnification increases, then the amount of the specimen you can see (the field of view) gets smaller.
Name two different types of:
Light microscope- monocular microscope and the binocular microscope.
Electron microscope- transmission electron microscopes and scanning electron microscopes.
Name the parts of animal cells that: controls the movement of materials into and out of the cell- cell membrane controls all chemical reactions within the cell- nucleus is a watery jelly-like liquid- cytoplasm
Name the parts of plant cells that: that controls the movement of materials into and out of the cell- cell membrane in which photosynthesis takes place- chloroplasts that forms the skeleton of the plant- cell wall
Name the process in which plants manufacture their food.
Photosynthesis
List three specialised cell types found in plants. Explain
Guard cells- are found on the leaves and stems of plants. Guard cells work in pairs to open and close very tiny pores (or holes) in the leaves called stomata.
Conducting cells- transport food and water from the leaves to the roots and stems.
Photosynthetic cells- cells used for the process of photosynthesis. Chloroplasts contain a chemical known as chlorophyll.
List three types of specialised cell types found in animals. Explain
Nerve cells- carry information from your brain to other parts of your body.
Blood cells- red blood cells carry oxygen from your lungs around your body to the cells where it is used to release the energy you need. White blood cells are part of the immune system and help the body to fight infection.
Fat cells- brown fat cells are used to produce the heat for the body. The white fat cells are used as a store of energy, they also
Half-Yearly's
Name the lenses found in a microscope.
Eyepiece or ocular lens
Objective lens
Recall the units used to measure microscopic objects.
Micrometres
Recall what happens to the field of view as the magnification used increases.
As the magnification increases, then the amount of the specimen you can see (the field of view) gets smaller.
Name two different types of:
Light microscope- monocular microscope and the binocular microscope.
Electron microscope- transmission electron microscopes and scanning electron microscopes.
Name the parts of animal cells that: controls the movement of materials into and out of the cell- cell membrane controls all chemical reactions within the cell- nucleus is a watery jelly-like liquid- cytoplasm
Name the parts of plant cells that: that controls the movement of materials into and out of the cell- cell membrane in which photosynthesis takes place- chloroplasts that forms the skeleton of the plant- cell wall
Name the process in which plants manufacture their food.
Photosynthesis
List three specialised cell types found in plants. Explain
Guard cells- are found on the leaves and stems of plants. Guard cells work in pairs to open and close very tiny pores (or holes) in the leaves called stomata.
Conducting cells- transport food and water from the leaves to the roots and stems.
Photosynthetic cells- cells used for the process of photosynthesis. Chloroplasts contain a chemical known as chlorophyll.
List three types of specialised cell types found in animals. Explain
Nerve cells- carry information from your brain to other parts of your body.
Blood cells- red blood cells carry oxygen from your lungs around your body to the cells where it is used to release the energy you need. White blood cells are part of the immune system and help the body to fight infection.
Fat cells- brown fat cells are used to produce the heat for the body. The white fat cells are used as a store of energy, they also