Misc. Bio

Question 1

plama membrane fact

Answer 1

phospholipid bilayer, so only non polar can dissolve through, large polar molecules must travel across a membrane in special hydrophilic (protein) channels

Question 2

3 types of meristem, meristem

Answer 2

tissue in where growth occurs in class

Question 3

apical meristem

Answer 3

growth at tips of plant, roots and shoots, need to expand in order the gain access to nutrients and water and light, must reduce enough for expansion and for cell loss due to abrasion

Question 4

intercalary meristem

Answer 4

between the branches

Question 5

lateral meristem

Answer 5

growth, woody trees girth

Question 6

apical dominance

Answer 6

when there is a main root/shoot

Question 7

shoot meristem in monocots vs dicots

Answer 7

monocots: starts below the ground and goes upward, dicots: starts at the tips

Question 8

shoot meristems can produce an entire plant if cut and pasted elsewhere but root meristems can’t

Answer 8

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Question 9

genes affect diversification/specialization of cells in the apical meristem

Answer 9

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Question 10

totipotent

Answer 10

able to differentiate into specialized cells