Name that Structure
Control Center - holds DNA
Nucleus
Job of the Cell Membrane
Regulates what enters and leaves the cell
Diffusion moves molecules from ____ to ____ concentration
high to low
Equal balance of water in and out of the cell is
Isotonic
Equilibrium
True or False: Bacteria are Prokaryotes
True
Breaks down waste
Lysosomes
Job of the Mitochondria
Cell Respiration (makes ATP)
True
If a cell has lost mass after sitting in a solution, the environment is ... (which tonic)?
Hypertonic
True or False: Animal cells are prokaryotic
False
Ribosomes
Job of the Chloroplast
Photosynthesis
Which kinds of molecules can move through the cell membrane directly?
small, uncharged (oxygen, co2, water)
70% water in a cell, and 30% water in the environment will make water move...
out of the cell
Prokaryotes differ from Eukaryotes because
no nucleus
no specialized organelles
ex: bacteria
Vacuole
Job of the Vacuole
Store materials (water)
Process that moves slightly larger molecules (glucose, ions) through the cell membrane
Facilitated Diffusion
30% of water in the cell, 40% water in the environment. where will water go?
into the cell
Maintaining stable internal conditions
Packages Proteins
Job of the Cell Wall
Provides external structure to plant cells and prokaryotes
Which structures help larger molecules enter/exit the cell by facilitated diffusion?
Protein Channels
If a cell has gained mass after sitting in a solution, the environment is ... (which tonic)?
Hypotonic
Two ways your body keeps homeostasis INTERNALLY when it is hot outside or you are exercising
sweating (evaporative cooling)
blood vessels expand (circulate more heat)
heart pumps faster
hair on arms and legs lays flat (not trapping heat in by standing up)