Cell Structure and Function

Question 1

4 basic tissue types

Answer 1

Connective
Muscle
Nervous
Epithelia

Question 2

What is made in the nucleolus

Answer 2

rRNA

Question 3

2 types of chromatin (DNA)

Answer 3

Euchromatin (lighter, active transcription)

Heterochromatin (darker, inactive)

Question 4

3 types of post-transcriptional modifications

Answer 4

Capping
Splicing
Polyadenylation

Question 5

Inner membrane of mitochondria are folded into…

Answer 5

Cristae

Question 6

Cis and trans face of Golgi

Answer 6

Cis faces nucleus

Trans faces outside of cell

Question 7

Functions of smooth ER

Answer 7

Synthesis of cholesterol, lipids, steroid hormones
Detoxification of drugs and toxins
Store and release Ca

Question 8

Sacks of Golgi are called…

Answer 8

Cisternae

Question 9

3 different pathways for delivery of materials to lysosomes for digestion

Answer 9

1. Phagocytosis
2. Endocytosis
3. Autophagy

Question 10

3 main structural components of the cytoskeleton

Answer 10

Actin filaments
Intermediate filaments
Microtubules

Question 11

Functions of actin filaments (5)

Answer 11

Maintain structure and shape of cell
Cell motility/movement
Anchorage and movement of membrane proteins
Anchorage of cell-cell junctions
Form the core structure of microvilli

Question 12

Function of intermediate filaments

Answer 12

Provides structural support for the cell

Mechanical support for the plasma membrane where it comes in contact with other cells or with ECM

Question 13

3 types of intermediate filaments

Answer 13

Keratin
Vimentin
Lamins

Question 14

Microtubules

Answer 14

Hollow
Grow from microtubule organizing center and extend towards periphery
Involved in cell structure, division, intracellular transport, ciliary and flagellar motility

Question 15

Cell adhesions are important for..

Answer 15

Cell communication

Cell polarity