UNit 2 quiz 1

1.all things are composed of one or more cells 2.the cell is the simplest unit that can carry out a life process 3.all cells reproduce from other cells

smaller than eukaryotes and do not have a nucleus

much larger and more complex, do have a nucleus

parts of a cell, each organelle has a sepcific function

cell wall and chloroplast

holds things until needed

supports the cell and allows things to pass through or not

contains genetic information and controll cell activity

power house of the cell, repsonsible for creating and storing energy, responsible for celluar respiration

transport materials and helps with thr production and release of hormones

collect and process materials to be removed from the cell

provides support and protection

obsorbes sunlight for photosynthesis

involves 1 parent and occurs in single cell organisms. offspring is an exact genitic copy of parent

involves 2 parents and occurs in multi-celluar organisms. offspring is a mix of both parents

-energy -water -nutrients -water -gases

moving of particles from high to low concentration

moving of water particles from high to low concentration

interphase, mitosis and cytokinesis

cell grows and prepares to divide

consists of 4 phases. prophase, metaphase, anaphase and telephase

first stage of mitoses, dna stands become compact and chromosones have2 identicle strands held together by a centromere

second phase of mitosis, chromosones line up in the middle of cell, spindle fibers atatch to sister chromatids at centromere

third phase of mitosis, centomere splits and sister chromatids separate. dauhter chromasones move to seperate sides of cell