catchuponbiopapers

Question 1

what is Cl- for

Answer 1

cofactor of amylase

Question 2

whats Zn2+ for

Answer 2

prosthetic group for carbonic anydrase

Question 3

whats the tonoplast

Answer 3

vacuole membrane

Question 4

things for validity when looking at potato osmosis

Answer 4

-take samples from same variety of potato
-use same size of discs
-use same vol of solution

Question 5

1mm in um

Answer 5

=1000um

Question 6

1dm^3 in cm^3

Answer 6

1dm^3= 1000 cm^3

Question 7

what bonds are in the backbone of DNA

Answer 7

phosphodiester

Question 8

disadvantages of RBCs having no organelles

Answer 8

-limited life span
-no mitochondria for respiration
-no protein synthesis for repair
-can’t undergo mitosis

Question 9

describe mass flow of the phloem sap

Answer 9

-assimilates from sieve tube enter at source and lower water pot. water then enters by osmosis down a water pot grad, this increases hydrostatic pressure.
-assimilates then leave at sink, the water pot increases so water then moves down a water pot grad, this lowers hydrostatic pressure.
-assimilates move from a high to low hydrostatic pressure down a pressure gradient