Chapter 2 Flashcards
Inclusion body in fat cells
Lipid droplets
Inclusion body in respiratory system
Mucus
Inclusion body in muscles and liver
Glycogen
Inclusion body in skin and hair cells
Melanin
Plasma membrane, transport processes
1 active process
2 passive process(diffusion)
Passive process
1 simple diffusion
2 facilitated diffusion(carrier, transporter)
3 osmosis
Active processes
1 active process(primary and secondary)
2 endocytosis
3 exocytosis( phagocytosis, receptor mediated)
Plasma membrane is impermeable for?
Charged molecules, ions
Golgi apparatus has flattened vesicles called
Cisternae
Lysosomes have digestive enzymes called
Hydrolases
Lysosomes execute cell’s death
Apoptosis
Lysosomes get rid of the worn out organelles. This process is called
Autophagy
Proteasomes play ac crucial role in …
Degrade faulty, unneeded cytoplasmic proteins
Maintaining cell’s cellular health
Regulate other cellular processes
Inner mitochondrial membrane consist of folds called…
Cristae
Functions of mitochondria
1 generate ATP through aerobic cellular respiration
2 plays a role in apoptosis
Functions of the cytoskeleton
1 move organelles in the cells
2 maintain cell’s shape
Function and location of centrosome
1 important for the cell’s division
2 close to nucleus
Why is the function of cilia , and where does it found
Moving fluid
Found in the trachea to sweep mucus
, and fallopian tubes (oviduct ) to Move eggs to the uterus
Nucleic acids are responsible for
Storage, expression. Transmission of genetic information
Nitrogenous bases
1 pyrimidines T,C
2 purines A,G
Enzyme responsible for the DNA transcription
RNA polymerase enzyme
Plasma membrane contains cholesterol for
Structural support
Substance transported throu simple diffusion
, non polar molecules, hydrophobic molecules: oxygen, nitrogen, carbon dioxide. Fatty acids, fat soluble vitamins, steroids
Substances transported through facilitated diffusion
Charged, polar solutes: glucose, galactose, fructose. Ions and vitamins
Name of the water channel
Aquaporin
Substances transported through active transport
Polar,charged molecules
NA+,K+,H+,
CL-,I-
Ca2+
Substances transported through exocytosis
Bacteria
Viruses
Antibodies
Aged/dead cells
Vitamins
Hormones
Solutes and nutrients in the cytoplasm
Vitamins
Minerals
Proteins
Enzymes
Ions
Nucleotides
Amino acids
Role of smooth ER
1 synthesis of steroids and lipids (estrogen, cholesterol, testosterone)
2 ca 2+ storage and release
3 carbohydrate metabolism
4 detoxification
Golgi apparatus function
Modify proteins , lipids and other macromolecules
Then sorts them into vesicles
The proteasomes recycle cytoplasmic proteins and turn them in to
Amino acids
Small peptides
And turn it back to the cytosol
Functions of lysosomes
Execute apoptosis
Carry out autophage
Fuses with digest substances (phagocytes)
Cytoskeleton has 3 types of fibers
1 microfillament(actin )
2 intermediate
3 microtubules (large diameter)
Nucleosomes
Bead like structure of histones
Forms the chromatin
Nucleotides
DNA consists of polynucleotides and a double helix
Consist of:
Nitrogenous base
Phosphate group
Deoxyribose sugar
Functions of smooth endoplasmic reticulum
1 release, and storage of calcium
2 carbohydrate, metabolism
3 detoxification of harmful substances
4 synthesis of lipids and steroids
The three types of fibers that the cytoskeleton is made of
1microfillament
2 intermediate fillament
3 microtubule
Substances transported through carrier mediated facilitated diffusion
Glucose, amino acids
Substances transport through simple diffusion
Steroids, lipids
Hypotonic solution causes
Homolysis
What happens in the hypertonic solution?
Crenation
What is the function of the junctions and what are the three types of it?
For communicating and connection
1 tight(impermeable) jun
2 gap(communicating)
3 dismosomes( anchoring)
Tight junction function
Does an allows substances to enter between the cells
Predominant in kidney , small intestine, stomach
Desomosomes junction function
Allow for stress relief
Predominant in cardiac cells and epidermis
Gap junction function
For communicating
Predominant in muscle cells like cardiac cells , and in neurons