Question

if a solution a has a 1.5% saline and solution b has a 0.5% saline
a solution a is isotonic to solution b.
b solution a is hypertonic to solution b.
c solution a is hypotonic to solution b.
d none of these.
question 28
streptomycin is effective against gram - ___ bacteria.
a positive
b negative
question 29
which type of cellular transport relies on carrier proteins using energy to move molecules against their concentration gradient?
a simple diffusion
b selective diffusion
c facilitated diffusion
d active transport

Explanation:

• For the first question, a hypertonic solution has a higher solute concentration. Since solution A has 1.5% saline and solution B has 0.5% saline, solution A is hypertonic to solution B.
• For the second question, streptomycin is effective against gram - negative bacteria.
• For the third question, active transport uses carrier proteins and energy to move molecules against their concentration gradient.

Answer:

B. Solution A is hypertonic to solution B.
B. negative
D. Active transport