Living things
The science that studies living things
Biology
A prokaryotic cell
is a simple cell without a nucleus
asexual reproduction
offspring that are genetically identical- only one parent DNA is needed
Prophase, metaphase, anaphase, and telophase
What does it mean to be multicellular?
make up of more than 1 cell
the amount of characteristics needed to be classified as alive
seven
Type of cell that has a cell wall present
plant cell
An advantage of asexual reproduction
is fast
The stage that happens before mitosis can begin
Interphase- the chromosomes double in preparation for cell division
what is cancer
uncontrolled cell division that creates a clump of cells called cancer
Abiogenesis
the theory that life came from non-living matter
Mitochondria
makes the energy for the cell
vegetative reproduction
Asexual reproduction from a parent plant. A part of the plant is cut off from the original and will continue to grow when placed in soil or whater
the difference between cytokinesis in plant and animal cells
plant: a cell plate grows and separates the two cells
Animal: the cell membrane pinches to form two new cells
a benign VS malignant tumour
benign: non cancerous
malignant: cancerous
a positive feedback loop in equilibrium
a reaction that moves further and further from equilibrium
The ribosomes
makes proteins for the cell
Budding
when the parent plant produces a small bud or clone. Can break off and live or stay attached as a separate organism.
What happens in prophase
the chromosomes condense
the nuclear membrane begins to dissolve
haploid VS diploid
haploid: has a half set of chromosomes
diploid: has a full set
The three parts of the cell theory
1. All cells arise from pre-existing cells
2. Cells are the basic unit of life
3. all living things are made of cells
The endoplasmic reticulum
stores proteins and makes fats
Parthenogenesis
When an unfertilized, haploid egg, mature into new organisms.
What happens in anaphase
the chromosomes get pulled apart to the edge of the cell
the mitotic spindles pull them over
how many chromosomes do humans have
46 (or 23 pairs)