Cell Biology
The control center of the cell
What is the nucleus?
Each square on the periodic table represents on of these
What is an element?
A group of cells with similar structure and function working together
What is a tissue?
A circle with a cross inside it represents which component in a circuit?
what is a light bulb
The unit for energy
What is Joules (J)?
Bacteria are an example of this type of cell as their genetic material is not inside a nucleus
what is a prokaryotic cell?
A separation method that separates substances based on their boiling points and then condenses a gas back into a liquid
What is distillation?
A biological catalyst
what is an enzyme?
This is the flow of electrons around a circuit
what is current?
The approximate gravitational field strength on earth (with unit)
What is 10N?
This is an example of a specialized plant cell that has a large surface area to increase absorption
What is a root hair cell?
If an atom has an Atomic mass 0f 13 and an atomic number of 7 how many neutrons does it have?
what is 6?
The liquid added to food that turns it purple if starch is present
This would be the potential difference across each light bulb (assuming same resistance) in a series circuit with a 6 V battery.
3V
This principle states that energy can not be created or destroyed
What is the conservation of energy?
The solution on the outside of the cell is more dilute than the inside so therefore the cell will change size in this way
What is become larger/ gain mass?
An atom of Sulfur would make this ion
what is S 2-
The name of the blood vessel that carries oxygenated blood from the heart to the rest of the body
What is the Aorta?
This is the formula for calculating current
what is potential difference ÷ resistance?
The definition of specific heat capacity
What is : the energy needed to raise the temperature of 1 kg of a substance by 1o C?
A body cell of a cat has 19 pairs of chromosomes and divides via mitosis. Now each new cell has this total number of chromosomes
What is 38 (19 pairs)?
This is why group 1 elements become more reactive as you go down the group
What is shielding effect? (or explanation to this) effect: more shells = more distance between the positive nucleus and the outermost electron
This reduces the attraction
and makes it more likely for the electron to be removed
What type of plant cells contains lots of chloroplasts ?
What are Palisade Cells?
A 200 V, 12A electric motor in a machine has an efficiency of 60%, this is how much power was supplied
what is 12A x 200= 2400W
The amount of kinetic energy stored in a vehicle of 500kg moving at 10 m/s
What is 25000 J
KE= 0.5 x 500 x 102 = 25000