CH4

Question 1

Theory of endosymboisis

Answer 1

1. last common ancestor is likely a large organism with loose boundaries, has RNA as genetic material
2. individual cells form, genetic material become DNA
3. pre-eukaryotic cells engulfed bacteria, they become mitochondria or chloroplasts in eventual eukaryotic cells

Question 2

Flagella

Answer 2

motility, move towards nutrients and positive stimuli, and away from harmful substances

Question 3

Cilia

Answer 3

shorter and more numerous than flagella

Question 4

Glycocalyx in Eukaryotic cells

Answer 4

outermost layer that comes in contact with environment
composed of polysaccharide, and appears as fibers, slime layer, or capsule

Question 5

Eukaryotic nucleus

Answer 5

site of majority of DNA (linear shape)

Question 5

functions of glycocalyx in eukaryotic cells

Answer 5

protection
adherence of cells to surface
reception of signals from other cells/environment

Question 6

Cytoplasmic membrane in eukaryotic cells

Answer 6

serves as a permeable barrier

Question 6

cell wall in fungi cells

Answer 6

rigid and provide structural support
different in chemical composition compared to prokaryotic cell walls
thick layer of polysaccharide fibers composed of chitin/cellulose
thin outer layer of mixed glycans

Question 7

Eukaryotic Cytoplasmic membrane

Answer 7

-Bilayer phospholipid protein
-serves as a selectively permeable barrier

Question 8

Eukaryote Nucleus

Answer 8

-Linear chromosome