bio test Flashcards
(26 cards)
what is the cell theory
all living organisms are made up of cells
describe plant vs animal cells
animal cell
-round shape
-no cell wall
-no chloroplast
-many small vacuoles
plant cell
-square
-there is a cell wall
-there is a chloroplast
-one large vacoul
what does prokaryotes mean
always unicellular
what does eukaryotes mean
often multi celled
what is a organelle
small structure in a cell that is surrounded by a membrain
what is the cell membrain
outside of cell contrôles what moves in and out
what is mitochondria
power house of cell brajn of cell in plant and animal round thing with skwiggly lines
what is nucleus
round thing contains dna in both cells
ribosome
small dots where synthesis occures in both cells
what is the cytoplasm
empty space where activites take place in both cells
what is cell wall
makes cell strong on the outside only in plants
what is vacoul
big round thing keeps cell turgid only in plants
what is chloroplast
round things with squares in them contains chlorophyll wjere photosynthesis takes place only plants
what are spécialisés cells
red blood, sperm, eggs, nerve cells, muscle cells, villi
why is cell division importsnt
cells need to driving to creat new cells to grow
two types of cell reproduction
asexual- one parent
sexual- two parent
what is diffusion
partials move from higher concentration to lower one
what is osmosis
membrain skme shit can go through and some can’t
what is interphase
when the cell is in a non dividing state
what are the 4 stages of mitosis in order
1.prophase
2.metaphase
3.anaphase
4.telophase
what is prophase
genetic fibers in nuclear become compact together
what is metaphase
nucleus dissolved and cells chrome move together
what is anaphaee
cell repérâtes and duplicates into two identical cells
what is telophase
separation of dublivayed cells
