Test
Year 8 biology
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Preguntas del test (24)
1When small things can only be seen through a microscope they are called
- AMagnified
- BMicroscopic
- CMicroscoped
2How does a light microscope work ?
- AA mirror reflects the specimen to make it bigger
- BLight from a lamp passes through the specimen then the light passes through a series of lenses to make it look bigger.
- CThe ocular lens magnifies the specimen no matter how thick the specimen is.
3The ocular lens is closer to the eye then the objective lens.
- AVerdadero
- BFalso
4The ocular lens is closer to the specimen than the objective lens.
- AVerdadero
- BFalso
5Which of the following statements are FALSE
- AA stereo microscope has electrons that sense an image.
- BA stereo microscope can view a specimen regardless of size
- CA stereo microscope uses two lens focusing on different points to create a 3D image.
6 The magnification of a microscope with an ocular lens function of *6 and objective lens function of *4 is...
- A*10
- B*24
- C*23
- D*28
7A micrometer is...
- AOne- thousandths of a millimeter
- BOne - thousandths of a centimeter
- COne - hundredths of a millimeter
- DOne hundredth of a centimeter
8In Electron microscopes, electrons are use to create an image. Which electron microscope allows the electrons to go through the cells.
- ATEM; transmission electron microscope
- BSEM; Scanning electron microscope
9What does the nucleus do?
- AControls the chemical reaction of the cell. Controls development and reproduction.
- BProduces food then distributes is through out the cell
10Ribosomes produce proteins. What are these proteins used for?
- AGrowth and repair.
- BEnergy.
- CTo help fight bacteria.
11What am I? I consist of a watery jelly like mixture. A contain other smaller organelles where the bulk of the work takes place.
- AVacuole
- BCytoplasm
- CEndoplasmic reticulum
12The role of the mitochondria is..
- ATo sort what is waste and what can be turned into food.
- BTurn energy in to water
- CTurn food in to energy
13Endoplasmic reticulum form pathways that allow materials to move quickly and easily through the cell. If endoplasmic reticulum is refereed to as rough it ...
- AIs damaged
- BIs not functioning as well
- CHas lysosomes on it
- DHas Ribosomes on it.
14Lysosomes produce waste
- AVerdadero
- BFalso
15Tick all the true things about plant cells
- AThey don't have mitochondria.
- BThey have a vacuole just like animal cells
- CThe make their own food by photosynthesis. This happens in the chloroplasts
- DThey have a cell wall.
16Vacuole is bigger in a plant cell than an animal cell
- AVerdadero
- BFalso
17What is a Vacuole have in it
- Asap
- BWater
- CWaste
- DNutrients
18How do plants make their food? Tick Best Anwser
- AUsing chloroplast
- BThrough photosynthesis
- CThey take energy from the sun, water & carbon dioxide and change it into glucose.
19Bacteria isn't a unicellular organism
- AVerdadero
- BFalso
20Unicellular organisms belong to a group called bacteraisms
- AVerdadero
- BFalso
21Multi-cellular orgainism have lots of cells. Multi means
- Amany
- BMultiple
22Which muscles are smooth muscles ( involuntary)
- Atriceps
- BDiaphragm
- Cmuscle lining you digestive track
23There are three types of muscle cell Skeletal (voluntary), Smooth (involuntary) and----------. What is the third type of muscle?
- ACardiac
- BSemi - controlled muscle
24Which type of muscle has lot of mitochondria organelles in it so it can keep working with out tiring.
- ACardiac
- BSmooth
- CSkeletor
Información
- Descripción
- Taken off Pearons science chapter 2&3. To be completed
- Autor
- mabel-cudmore
- Idioma
- English
- Visitas
- 74
- Etiquetas
- Valoración
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