Answer:
the answer is b I got it right on my test B
Http://highered.mheducation.com/sites/007246268x/student_view0/chapter13/
Answer:
The plasma membrane protects cells from its surroundings.
Explanation:
Answer:
The probability that the victim not getting hepatitis virus is 0.4547
Explanation:
We have given that 7 of 48 units of blood is contaminated with virus causing hepatitis.
So probability of getting hepatitis virus is 
So probability of not getting hepatitis virus = 1 - 0.1458 = 0.8542
It is given that severely injured accident victim given 5 units of plasma
So probability that the victim not getting hepatitis virus = 
So the probability that the victim not getting hepatitis virus is 0.4547
Answers:
It is how oxygen and carbon dioxide travel across the cell membrane
Molecules travel with the concentration gradient
Explanation:
In simple diffusion, molecules move from an area of high concentration to area of low concentration until equilibrium is achieved. This occurs randomly unlike in facilitated diffusion where this flow is regulated through channels by facilitators. Nonetheless, these molecules still travel down the concentration gradient, similar to simple difussion.
Answer: Active transport
Explanation:
In this type of transport, energy is required. This is especially because, in endocytosis and exocytosis, the membrane has to form some structure (some form of a vessicle) to facilitate these transport modes. This requires energy from ATP. More so, usually transport in this case is against concentration gradient.
Answer:
Osmosis.
Explanation:
Osmosis is the movement of water from a lower concentrated solution to a higher concentrated solution through a semi-permeable membrane. In this case, the cell membrane has pores that allow only water molecules to pass through but the solute molecules are too large to pass through. Therefore only water is moving down its concentration gradient.
