General (cell) knowledge
Name an example of a multicellular organism.
Animal, plant or fungi.
What does the nucleus contain?
DNA
What is a unicellular organism?
An organism (or life form) that is only one cell.
Bacteria is an example of a unicellular organism.
What type of stain did you use to view the onion cells under the microscope?
Iodine
What type of shoes should you wear in a laboratory?
Fully enclosed leather shoes.
Name an example of a unicellular organism.
Bacteria or protist.
What is the purpose of the cell membrane?
It contains the cell and controls what enters and leaves the cell.
What is a multicellular organism?
An organism (or life form) that consists of many cells that work together.
Plants and animals are examples of multicellular organisms.
What do you call an organism that you need a microscope to see?
Microorganism (or microbe)
What do you need to do if you drop and break a glass slide or cover slip?
Don't touch the glass and inform the teacher. (The teacher will then safely dispose of the glass.)
Why is mitosis so important?
It is responsible for growth and repair.
What is the purpose (role) of the large vacuole in plant cells?
It helps provide structure.
If the plant does not have enough water, the vacuole will shrink and the plant will droop.
What type of cell and tissue forms the heart?
Muscle (cardiac) cells.
What type of microscope did you use to view the newspaper clippings and onion cells?
(Compound) light microscope
How do you hold a microscope?
One hand on the base and one hand on the arm.
What is an organelle?
It is a structure within a cell that has a specific function.
What cell component found in plant cells has a green pigment and is responsible for photosynthesis?
Chloroplasts
What plant cells form tubes and have thick cell walls, and are responsible for conducting water from the roots to other parts of the plant?
Xylem
How many lenses are there in the microscopes that you used to view the onion cells?
Two
Why is it important to wash your hand after performing and experiment?
It is important to ensure that you do not have any chemicals or other substances on your hands before you eat recess or lunch.
What important cellular process is oxygen and glucose required for?
Cellular respiration
What organelle is responsible for releasing energy?
Mitochondria (or Mitochondrion)
What type of cell is the longest cell in the human body and where is it found?
Nerve cell which extends from the base of the spine, down to the toes.
What are the names of the two types of lenses in a compound microscope?
Eyepiece (ocular lens) and objective lens.
Why do you need to be careful if you have the microscope switched on in the electrical powerpoint and the tap on in the sink behind?
If the water is spilled and comes into contact with the electricity it can cause electrocution. It may also start a fire.