subatomic particles
How many types of subatomic particles are there in a cell
3
what is the scientific term for water
H2O
Why is salt and water not elements
Because they are made up of more than one type of atom
What is it called when a substance is made of only one kind of atom
an element
What is the powerhouse of the cell
The mitochondra
Name the three subatomic particles
Protons, Neutrons, Electrons
118
What is am atom that has a charge due to a change in the number of electrons
An Ion
what makes up matter
atoms
what is a cell
the smallest unit of an organism and the basic building blocks of matter.
proton and neutron
What is the atomic number of Byrillium
compare geno and phenotype
phenotype is the physical form of genes
genotype is the full set of genes that stays unchanged
What is a compund
A compound is a substance made of two or more elements that are chemically joined in a specific combination
Approximately how many cells are in an adult human body?
approx 36 trillion
neutrons help balance what
Atoms
What element has the atomic number of 79
gold
whats the inside of a gene
chromosomes
How is a chemical change different than a physical change?
Chemical changes are those where one or more substances are combined to produce a new substance
explain mitosis and meiosis
mitosis is asexual and meiosis is sexual
mitosis is cell split
meiosis is sperm and egg cell form
What are Electron clouds
These are clouds outside the nucleus that hold electrons
how many manmade elements are there?
24
Does every single cell in my body have the same DNA?
yes