cytoplasm and organelles

Question 1

describe the make up of cytosol

Answer 1

75-90% water

10-25 solids (proteins, carbs, lipids, glucose, AA, fatty acids, inorganic molecules)

Question 2

what are the components of the cytoskeleton

Answer 2

microfilaments
intermediate filaments
microtubules

Question 3

what is the function of the cytoskeleton

Answer 3

helps determine cell shape
organizes cellular contents
helps in cellular movement

Question 4

what are microfilaments composed of?

Answer 4

actin

Question 5

what are the functions of microfilaments?

Answer 5

generate movement 
cell division 
locomotion
anchor cytoskeleton to plasma membrane 
mechanical support for microvilli

Question 6

describe intermediate filaments

Answer 6

located throughout the cell
very strong
composed of several proteins

Question 7

what are the functions of intermediate filaments

Answer 7

stabilize the position of organelles and nucleus

provide reinforcement against mechanical stress

Question 8

describe microtubules

Answer 8

long unbranched hollow tubes

composed of tubulin

Question 9

what are the function of microtubules

Answer 9

help determine cell shape
move organelles
facilitate movement of chromosomes
movements of cilia and flagella