Histology

Question 1

Largest organelle of the cell

Answer 1

nucleus

Question 2

The outer nuclear membrane is continuous with what other structure in the cell

Answer 2

ER

Question 3

This form of chromatin is most abundant: __________

Answer 3

euchromatin

Question 4

Site of DNA transcription: ________________________

Answer 4

nucleus

Question 5

Responsible for Ribosomal RNA Synthesis: ________

Answer 5

nucleolus

Question 6

This form of chromatin is transcriptionally inactive

Answer 6

heterochromatin

Question 7

This is a complex of DNA, histone and non-histone proteins

Answer 7

chromatin

Question 8

Barr Bodies

Answer 8

Heterochromatin

Question 9

2 types of nucleus

Answer 9

vesicular and chromatic

Question 10

Structure of the nuclear pore

Answer 10

8 subunits with a central granule

Question 11

mechanical support of the nuclear envelope

Answer 11

lamina fibrosa

Question 12

Basic repeating unit of the chromatin fiber

Answer 12

nucleosome

Question 13

Charge of DNA and histone

Answer 13

DNA (-)

Histone (+)

Question 14

3 zones of ribosomal production in the nucleolus

Answer 14

Granular Zone (Pars Granulosa/amorpha): Maturing Ribosomes

Dense Fibrillar Zone (Pars Fibrosa): Active Zone

Fibrillar center: Inactive DNA

Question 15

A patient with Klinefelter’s Syndrome will have how many Barr Bodies?

Answer 15

1 (47 XXY)

Question 16

A superfemale will have how many Barr Bodies?

Answer 16

2 (47 XXX)

Question 17

Site of post-translational modification:

Answer 17

Golgi Apparatus

Question 18

Sequestration and release of Calcium ions in striated muscle:

Answer 18

Sarcoplasmic reticulum

Question 19

Consists of large and small subunits:

Answer 19

Free ribosomes