Cell Biology Lecture 5 Dr.haoquan Wu

Front 1

What are the three types of cells that connect body parts, form linings, or Transport Gases?

Back 1

- Fibroblast

- Epithelial Cells

- Erythtocytes

Front 2

What type of cell fights disease?

Back 2

Macrophage

Front 3

What type of cell stores Nutrients?

Back 3

Fat Cell

Front 4

How would you slow the fluidity of the plasma membrane?

Back 4

Freeze it

Front 5

Can the nucleus contain more then one nucleoli?

Back 5

Yes

Front 6

The space between the inner and outer nuclear membranes is continuous with what?

Back 6

The lumen of the rough er

Front 7

Where is the nucleolus located?

Back 7

inside the cells nucleus

Front 8

Can you have more than one nucleolus?

Back 8

Yes

Front 9

What happens to the nucleolus during cell division?

Back 9

It disappears

Front 10

Where are ribosomes made?

Back 10

Nucleolus

Front 11

What type of membrane does the Nuclear membrane have?

Back 11

Double layered membrane

Front 12

Is the nuclear membrane selectively permeable?

Back 12

Yes

Front 13

Where are the cytoskeleton fibers located?

Back 13

Cytoplasm

Front 14

What is the main purpose of the cytoplasm?

Back 14

To support and protect cell organelles

Front 15

What are ribosomes made of?

Back 15

Protein and rRNA

Front 16

What is the endoplasmic reticulum connected to ?

Back 16

Nuclear Envelope

Front 17

What is synthesized in the Smooth ER?

Back 17

Fatty Acids and Phospholipids

Front 18

What do the enzymes in the Smooth ER of the liver do?

Back 18

Modify and detoxify hydrophobic chemicals such as pesticides and carcinogens. (Abundant in hepatocytes)

Front 19

After proteins are passed through the rough ER membrane where do they go?

Back 19

Golgi

Front 20

What type of cells have an abundants of rough ER?

Back 20

Cells that are specialized to produce secreted proteins

Front 21

What is responsible for the quality control of proteins in the ER?

Back 21

ERAD

Front 22

Describe what the Golgi looks like?

Back 22

Sacs of flattened sacs

Front 23

Where in the cell does glycosylation occur?

Back 23

Golgi

Front 24

Function of the Golgi?

Back 24

Package and Export proteins

Front 25

What type of membrane does the mitochondria have?

Back 25

Double Membrane

Front 26

What part of the mitochondria membrane is smooth?

Back 26

The outer

Front 27

What does the inner membrane of the mitochondria fold into?

Back 27

cristae

Front 28

Break down of one glucose equals how many ATP?

Back 28

36 (2 from cytosol)

Front 29

Where does aerobic cellular respiration occur?

Back 29

Mitochondria

Front 30

What type of membrane do lysosomes have?

Back 30

Single Membrane

Front 31

How does the lysosome break down material taken into a cell?

Back 31

Endocytosis and phagocytosis

Front 32

Is the pH of the lysosome acidic?

Back 32

Yes

Front 33

Will lysosome enzymes function in normal pH?

Back 33

No

Front 34

Are the cell surface receptors recycled for endosomes?

Back 34

Yes

Front 35

After the Lysosome breaks what Neutralizes it?

Back 35

The Cytosol

Front 36

What organelle in the cell degrades fatty acids and toxic compounds?

Back 36

Peroxisome

Front 37

What kind of enzymes does peroxisomes contain?

Back 37

Oxidases and catalases

Front 38

Oxidation of fatty acids in peroxisomes do not produce ATP (like Mitochondria). Then, what do they produce?

Back 38

precursors for important biosynthetic pathways

Front 39

DO peroxisomes degrade toxic molecules?

Back 39

Yes

Front 40

What is the largest organelle in plant cells?

Back 40

Vacuole

Front 41

What is the pH in Vacuoles?

Back 41

Acidic

Front 42

What is stored in vacuoles?

Back 42

food, sugar, metabolic and toxic wastes

Front 43

What organelle is green, oval, and contains chlorophyll?

Back 43

Chloroplast

Front 44

What type of membrane does the chloroplast have?

Back 44

Double membrane

Front 45

What is unique about the inner membrane of the chloroplast?

Back 45

modifies into sacs called thylakoids

Front 46

What are the stacks of thylakoid called?

Back 46

grana

Hint 46

G

Front 47

What is the gel like innermost substance of the chloroplast called?

Back 47

Stroma

Front 48

In what form does the chloroplast store energy created by the sun?

Back 48

Glucose (Food for the plant)

Front 49

What are the three similarities between mitochondria and chloroplast?

Back 49

1) Mechanism of generating ATP is the same

2)they both contain their own DNA

3) Proteins encoded by mitochondrial/Chloroplast DNA are synthesized within the organelle by ribosomes.

Front 50

Are ribosomes located in mitochondria?

Back 50

Yes

Front 51

What is the cytoskeleton made of?

Back 51

Microtubules and Microfilaments

Front 52

What role does the cytoskeleton play in the cell?

Back 52

-Strengthens cell and maintains its shape-Moves organelles within the cell