unit 2 biology

the two purposes of the cell cycle

• start and end the cell cycle

• import and export

• growth and repair

• give energy to organelles

cancer-causing agents

• processed meat

• asbestos

• carcinogens

• radon

process in which the cell uses energy to bring something in from the outside

• flagella

• endocytosis

• carcinogens

• nucleus

photosynthesis happens where?

• nucleolus

• nucleus

• chloroplast

• flagella

this level of orginization forms of the fundamental base for all other levels in the hierarchy of life.

• tissue

• organism

• the cell

• organ system

What is the definition of cancer

• uncontrolled cell division

• invasive disease

• lump

• redness of the skin

four molecules essential to life

these types of molecules move easily across the cell membrane

• bipolar molecules

• big molecules

• small, polar molecules

• hydrogen molecules

the variable that is manipulated

• dependent variable

• independent variable

found in eukaryotic cells but not prokaryotic cells

• Nuclei

• Mitochondria
• Cell membrane
• Ribosomes