Dit Quizzes

Front 1

fetal placental struture that secretes hCG

Back 1

syncitiotrophoblast

Front 2

maternal component of placenta

Back 2

decidua basalis

Front 3

order these molecules by how much energy they contain that an be made available to fuel endergonic reactions?

Back 3

glucose> pyruvate> ATP> AMP> adenosine

Front 4

what are the stages of an embryo between conception and an inner ell mass

Back 4

zygote-> morula-> blastocyst-> inner cell mass and trophoblast

Front 5

patient with aganglionic colon and other neural crest derivative deficiencies. What other problems would she have?

Back 5

spiral septum, albinism, dental anomalies, PNS, bones of the skull, hearing problems, vision problems, thyroid problems, heart problems, adrenal gland

Front 6

list some drugs contraindicated in pregnancy

Back 6

ACEIs, alkylating agents, carbamazepine, valproate, lithium ,warfarin, thalidomide, phenytoin, tetracyclines, folate antagonists, DES, AG's, sulfa, FQ, MTX, pyrimethine

Front 7

when does organogenesis take place?

Back 7

3-8

Front 8

what is the relationship between the notochord, the neural plate, the neural tube, and the neural crest cells

Back 8

notochord forms neural plate, neural tube and neural crest arise from the neural plate

Front 9

embryonic origin: anterior pituitary

Back 9

surface ectoderm

Front 10

embryonic origin: cornea

Back 10

neural crest

Front 11

embryonic origin: lens

Back 11

surface ectoderm

Front 12

embryonic origin: retina

Back 12

neural crest

Front 13

embryonic origin: olfactory epithelium

Back 13

surface ectoderm

Front 14

embryonic origin: mammary glands

Back 14

surface ectoderm

Front 15

embryonic origin: salivary glands

Back 15

surface ectoderm

Front 16

embryonic origin: sweat glands

Back 16

surface ectoderm

Front 17

embryonic origin: tissue just above and below the pectinate line

Back 17

endoerm; surface ectoderm

Front 18

teratogenesis of ACE inhibitors

Back 18

kidney failure

Front 19

teratogenesis of aminoglycosides

Back 19

otoxicity

Front 20

teratogenesis of diethylstilbestrol

Back 20

clear cell vaginal CA

Front 21

teratogenesis of tetracyclines

Back 21

teeth discoloration

Front 22

teratogenesis of valproic acid

Back 22

neural tube defects

Front 23

which vitamin should not supplemented in large amounts during pregnancy? why?

Back 23

Vitamin A- prevents neural crest migration, HOX gene expression is altered

Front 24

what molecules provide the structural framework for DNA and the nuclear envelope

Back 24

nuclear lamins

Front 25

what must be present on a protein in order for that protein to gain entry in to the nucleus

Back 25

nuclear localization signal

Front 26

which types of proteins are responsible for fostering the progression through the cell cycle

Back 26

cyclins and CDK's

Front 27

which cyclin-CKD complexes assist in the transition from G1 to S?

Back 27

cyclin D- CDK 4

cyclin E- CDK 2

Front 28

which tumor suppressor proteins prevent progression into S phase?

Back 28

p53, Rb

Front 29

which cyclin-CDK complexes assist in the progression from G2 to M phase

Back 29

cyclin A- CDK 2

cyclin B- CDK 1

Front 30

what molecule targets proteins in the ER for lysosomes?

Back 30

mannos-6-phosphate

Front 31

what is deficient in I-cell disease

Back 31

ability to phosphorylate mannose to mannose-6-phosphate to mark proteins for lysomal degradation

Front 32

what are the different methods of proteolysis?

Back 32

proteasomes
lysosomes
calcium-dependent enzymes (extra-lysosomal)

Front 33

which types of cells have lots of smooth ER?

Back 33

adrenal cortex
hepatocytes

Front 34

which amino acids are in nuclear localization signals?

Back 34

lysine
proline
arginine

Front 35

what is the most common cause of mental retardation in infants?

Back 35

FAS

Front 36

how do Rb protein and p53 regulate the cell cycle?

Back 36

stop S phase from starting

Front 37

what drugs act on microtubules?

Back 37

vincristine/vinblastine
griseofulvin
paclitaxel
-bendazoles
-colchicine

Front 38

what two fundamental substances are required to make most things work inside the cell?

Back 38

ATP and calcium

Front 39

which organelle is responsible for the breakdown of very long-chain fatty acids?

Back 39

peroxisome

Front 40

intermediate filament in connective tissue

Back 40

vimentin

Front 41

intermediate filament in muscle

Back 41

desmin

Front 42

intermediate filament in epithelial tissue

Back 42

cytokeritin

Front 43

intermediate filament in axons

Back 43

neurofilaments

Front 44

defects in kartagener's syndrome

Back 44

primary immotile cilia

dynein arm defect
bronchiectasis- sinusitis
infertility
associated with situs inversus

Front 45

arachadonic acid product that causes increased bronnchial tone

Back 45

LTC4, LTD4, TXA2

Front 46

arachadonic acid product that causes decreased bronchial tone

Back 46

PGE2, PGF2, PGI2

Front 47

arachadonic acid product that causes increased platelet aggregation

Back 47

TXA2

Front 48

arachadonic acid product that causes decreased platelet aggregation

Back 48

PGI2

Front 49

arachadonic acid product that causes increased uterine tone

Back 49

PGE2, PGF2a

Front 50

arachadonic acid product that causes decreased uterine tone

Back 50

PGI2