Write the magnification formula
Magnification=measured length/actual length
Where do you find DNA in a eukaryotic cell
the nucleus
Phosphate heads are ______
Tails are ________
hydrophilic
hydrophobic
Hypertonic is ______
Hypotonic is _________
high solute, low solvent
low solute, high solvent
State the 4 features shared by all cells
1. cytoplasm
2. plasma membrane
3. DNA
4. Ribosomes
Where does transcription and translation occur in a eukaryotic cell
Transcription in nucleus
translation in cytoplasm
Difference between integral and peripheral proteins
integrals can go all the way or halfway into the bilayer while peripheral are only on the surface of the bilayer or attached to the hydrophilic part of an integral protein
Osmosis is _______
Passing of water from a low conc. to a high conc. through passive transport
What is the role of the lysosomes
They are vacuoles that contain enzymes which digest large molecules
in a eukaryotic cell, DNA is transcribed into _______. mRNA then is translated by _______ into _________.
mRNA
80S ribosomes
proteins
Channel proteins are used in ______
Facilitated diffusion
Animal cells in a hypertonic solution undergo ______
crenation
3 differences between animal and plant cells
-animals have centrioles while plants dont
-plants have a cell wall while animals dont
-plants have plastids (chloroplasts) while animals dont
-animals could have flagella while plants donts
What is the importance of compartmentalization
Organelles dont disrupt each other's functions.
Nucleus protects transcription process from metabolism in the cytoplasm
Why is ATP used in active transport?
particles are moving against the concentration gradient
Plant cells in a hypotonic solution become_______
turgid
State 1 advantage of immunoflorescence
- can study dynamic processes
- can detect molecules at low conc.
- diff. color stains can be used to label diff. molecules and study their interactions
Is the process which separates cell organelles while preserving their functions.
Cell Fractionation
What are the roles of glycoproteins and glycolipids?
1. communication
2. adhesion
3. hormone receptors
4. immune response
Channel proteins that aid in osmosis are ________
aquaporins