B1 Cell Biology
Name a cell organelle found in an animal and plant cell.
nucleus, cytoplasm, cell membrane, mitochondria...
Name the three particles that make up an atom.
Neutrons, electrons, protons
What is the unit for energy?
Joules
What are the three states of matter?
solid, liquid and gas
What is a neutral pH?
pH7
Name the cell organelle that stores the DNA.
Nucleus
Name the sub-atomic particle that has a negative charge.
electron
What is the unit for power?
Watt(s)
In which states of matter are the particles far apart and arranged randomly?
Gas
What might you observe as evidence for a chemical reaction?
Change in colour, bubbles formed, change in temperature, light/sound given off..
Name at least one cell organelle that is found in plant but not animal cells.
cell wall, chloroplast, vacuole
Which sub-atomic particle is found on the shell of an atom?
electron
Which energy store increases when you stretch an elastic band?
Elastic potential energy store
In which state of matter are the forces of attraction the strongest between particles?
solid
What is the pH of an acid?
pH1-6
What is diffusion?
Movement of particles from area of high to area of low concentration.
What is the atomic mass of Lithium?
7
Which energy store is relevant for anything that is moving?
Kinetic energy store
In which state of matter do particles vibrate around a fixed position?
solid
What is the pH of a strong alkali?
pH12-14
What is osmosis?
Movement of water from area of high to area of low concentration.
How many protons does oxygen have?
8
Which energy store increases when you lift an object off the ground?
gravitational potential energy store
What do we call the change in state from a solid to a liquid?
melting
Name an acid commonly used during school experiments.
hydrochloric acid
nitric acid
sulfuric acid