True or False:
Plant cells are different from animal cells.
True.
100
True or False?
Robert Hooke looked at cork under a microscope.
True
100
True or False?
All living things are made of cells?
True.
100
How come you can smell rotten food in the air?
The smelly particles diffuse into the air.
100
What is biology?
Biology is the study of living things.
200
What is the function of the mitochondria?
The function of the mitochondria is to produce the energy for the cell to work.
200
True or False?
Light microscopes use electrons to see the image of the specimen.
False
200
True or False?
Cells do not need any oxygen to live.
False.
200
What is the definition of diffusion?
Substances move from areas of high concentration to areas of low concentration.
200
What is a tongue (organ) made up of?
A tongue is made up of similar tissues that work together.
300
What is the function of the cell membrane?
The function of the cell membrane is to allow some substances to flow into and out of the cell.
300
What did Anton van Leeuwenhoek called cells when they moved?
He called them animacules.
300
What is the second statement in the Cell Theory?
Cells are the basic unit of structure and function in living things
300
How can you smell air freshener on the other side of the room if it was sprayed in the opposite corner?
Spraying air freshener in a corner of a room, the particles will eventually spread out until they are evenly distributed.
300
What is the word equation for photosynthesis?
solar energy
Carbon dioxide + water ------------------> oxygen + glucose
400
Reason about what would happen to a cell if it did not have the cell membrane.
Anything could go into the cell which could destroy it or anything could leave the cell eventually destroying the cell.
400
What is the difference between a light microscope and an electron microscope?
A light microscope uses lenses to bend light through the eyepiece. The electron microscope uses beams of electrons instead of light to magnify the image.
400
What is the third statement in the Cell Theory?
All cells are produced from other cells
400
Describe what happens to food colouring when it gets dropped into a glass of water.
The food colouring particles spread out evenly moving from an area of high concentration to areas of low concentration. Eventually the colour of water changes to look like the food colouring.
400
Why is biology important for people?
Biology is important for people because it helps us understand living things including ourselves better. We can improve our health, understand diseases, for example.
500
What makes plant cells different from animal cells?
Plant cells contain cell walls, and chloroplasts. They also have large central vacuoles. The shape is more rectangular.
500
How do you find the total magnification for a specimen under the microscope?
To find total magnification you must multiply the eyepiece by the objective lens.
500
When does the Cell Theory hold true?
The cell theory holds true no matter how big or small a living thing is. They are always made up of cells.
500
What needs to move across a plasma membrane? List 5 substances in your answer.
Oxygen, carbon dioxide, water, nutrients, and waste need to move across a plasma membrane.
500
List the 7 characteristics of living things.
The 7 characteristics of living things are feeding, moving, reproducing, excretion, irritability, growth, respiration.