Cell Physiology

Question 0

Powerhouse of the cell

Answer 0

Mitochondria

Question 1

Contains DNA, Histones & Chromosomes, has nucleolus

Answer 1

Nucleus

Question 2

Involve in detoxification, lipid synthesis, lipid soluble substances to water soluble substances

Answer 2

Agranular endoplasmic reticulum (SER)

Question 3

For synthesis of proteins bound for

the cell membrane, lysosomes, outside of the cell

Answer 3

RER Ribosomes

Question 4

For synthesis of proteins bound for the cytoplasm & mitochondria

Answer 4

Free floating ribosomes

Question 5

For packaging, molecular tagging & synthesis of hyaluronic acid & chondroitin sulfate

Answer 5

Golgi apparatus

Question 6

Contains proenzymes, neurotransmitters & replenishes cell membrane components

Answer 6

Secretory vesicles

Question 7

For regression of tissues & autolysis; suicide bags of cells; destroys FB

Answer 7

Lysosomes

Question 8

Degrades membrane-associated proteins; not membrane bound

Answer 8

Proteosomes

Question 9

Contains oxidases, catalases, for detoxification

Answer 9

Peroxisomes

Question 10

What do you call the specialized SER in skeletal muscle?

Answer 10

Sarcoplasmic reticulum

Question 11

What do you call the specialized RER in the neuron?

Answer 11

Nissl substance

Question 12

The only substance modified in the RET & not the Golgi apparatus

Answer 12

Collagen

Question 13

What is added ti lysosome-bound proteins by the Golgi apparatus?

Answer 13

Mannose 6-phosphate

Question 14

Lysosomes come from which organelle?

Answer 14

Golgi apparatus

Question 15

Perixisomes come from which organelle?

Answer 15

SER

Question 16

Wear & tear pigmenta that accumulates in lysosomes

Answer 16

Lipofuscin

Question 17

Disease with dynein missing in cilia & flagella

Answer 17

Kartagener syndrome

Question 18

What is the explanation for the situs inversus in Kartagener’s syndrome

Answer 18

Defective primary cilia

Question 19

What is the functional unit of the gap junction?

Answer 19

Connexon

Question 20

What do you call the movement of substance through the apical & basolateral side?

Answer 20

Transcellular transport

Question 21

What do you call the movement of substances between cells through tight junctions?

Answer 21

Paracellular transport

Question 22

Which disease involves a mutation in a gene of chromosome 7 that encodes for an ABC transporter called CFTR?

Answer 22

Cystic fibrosis

Question 23

What are the predominant cations & anions in the ECF?

Answer 23

Na, K

Question 24

What are the predominant cations & anions in the ICF?

Answer 24

K, PO4

Question 25

Example of impermeant solute

Answer 25

Glucose (effective osmole)

Question 26

Example of Permeant solute

Answer 26

Urea (ineffective osmole)

Question 27

Effective osmole used in the treatment of brain edema

Answer 27

Mannitol

Question 28

Osmotic pressure from large molecules (proteins)

Answer 28

Oncotic pressure

Question 29

Weight of the volume of a solution divided by weight of equal volume of distilled (pure) water

Answer 29

Specific gravity

Question 30

Ca-ATPase pump in the cell membrane

Answer 30

PMCA

Question 31

Ca-ATPase pump in the sarcoplasmuc reticulum & endoplasmic reticulum

Answer 31

SERCA

Question 32

Functions of the Na-K-ATPase pump

Answer 32

Contributes to RMP; prevents cellular swelling

Question 33

Functional subunit by Na-K-ATPase pump inhibited by cardiac glycosides

Answer 33

Alpha subunit

Question 34

In all epithelial cells, Na-K- TPase pump is found in the basolateral side EXCEPT:

Answer 34

Choroid plexus

Question 35

Why do RBCs swell when chilled?

Answer 35

Decreased ATP synthesis leads to Dec activity of Na-K-ATPase pump