Unit 1 Flashcards
(17 cards)
1
Q
Role of ciliated cells
A
Waft mucus
2
Q
Role of goblet cells
A
Secrete mucus
3
Q
Role of smooth muscle cells
A
Constrict bronchioles
4
Q
Role of squamous epithelial cells
A
Provide a short diffusion distance
5
Q
Means of division - yeast cells
A
Budding
6
Q
Means of division - plant cells
A
Cytokinesis
7
Q
Means of division - animal cells
A
Cytokinesis
8
Q
Means of division - bacterial cells
A
Binary fission
9
Q
Do animal cells have a nucleus?
A
Yes
10
Q
Do plant cells have a nucleus?
A
Yes
11
Q
Do yeast cells have a nucleus?
A
Yes
12
Q
Do bacterium cells have a nucleus?
A
No
13
Q
Material of cell wall in plant cells
A
Cellulose
14
Q
Material of cell walls in yeast cells
A
Chitin
15
Q
Material of cell wall in bacterial cells
A
Peptidoglycan
16
Q
How are proteins released from a cells
A
Proteins moved to Golgi Modified into vesicles Moved to cell-surface membrane Fuses with membrane Expcytosis
17
Q
Describe DNA replication
A
DNA unwinds DNA helicase unzips strands Hydrogen bonds break Both strands act as templates Free DNA nucleotides align Complementary base pairing C to G and T to A Hydrogen bonds reform Sugar-phosphate back bone forms using covalent bond DNA polymerase joins nucleotides to form polynucleotide chain Semi-conservative replication
