Which of the following molecules is most likely to passively diffuse across the plasma membrane?

a. hemoglobin
b. dna
c. sodium ion
d. carbon dioxide
e. glucose

Carbon dioxide is the molecule most likely to passively diffuse across the plasma membrane.

Explanation:

The plasma membrane is made up of phospholipid bilayer. The fatty acid tails of the phospholipids make the cell membrane hydrophobic.

Due to the hydrophobic nature of the cell membrane, larger molecules like sodium ion, glucose ions, etc cannot enter through the cell by passive transport, when dissolved in water. Simple, non- polar molecules like carbon dioxide and oxygen can pass through the cell membrane easily by passive diffusion.  

1: the largest region of the brain is the:

  cerebrum

2. the term "psychology" literally means:

the process or procedure of the science or study of the mind.

3. the area of the brain responsible for respiration, heart rate, and smooth muscle control of our blood vessels is t

medulla oblongata

4. the structure that conducts nerve impulses to and from the brain and serves as a reflex center for some sensory information without input from the brain is the:

spinal cord

5. the three-layered membrane that covers the brain and spinal cord and literally means membrane is called the:

meninges

6. the cord-like (string-like) structures that carry bio-electrical impulses from one part of the body to another are called

nerves

7. a group of nerve cell bodies that are found outside of the spinal cord and brain are referred to as:

ganglions or ganglia (pl.) “literal meaning knot”

8. the term that means spinal cord inflammation is:

myel/itis

im not in connections yet but i might can you some questions. what grade are you in?