Plasma Membrane Transport

Plasma membrane .....

• is selectively permeable

• consist of triglyceride and cholesterol

• separate cytoplasm and extracellular fluid

• have proteins embedded the phospholipid bilayer

Name structure P

(a)  

Tags

NGSS.HS-LS1-6

Choose correct statement(s) about structure R

• makes membrane less fluid by restrain phospholipid movement

• lower the temperature required for mombrane to solidify

• is a type of lipid

• can be found higher in plant compared to animals

Assuming the membrane is only permeable to water. What happens to slution level in SIDE B after 20 minutes?

• increase

• decrease

• no change

Tags

NGSS.HS-PS1-5

Choose function of membrane protein shown in the figure.

• Cell to cell recognition

• Intercellular joining molecule

• Enzymatic reaction

• Involve in signal transduction

Figure shows three different plant cells immersed in solution with different concentration. Choose a normal healthy plant cell in the figure.

• Cell A

• Cell B

• Cell C

Tags

NGSS.MS-LS1-1

Identify suitable stimulus to open ion gated channel in the figure.

• Voltage

• Mechanical

• Chemical

• Enzyme

How molecule in the figure can be transported across plasma membrane? (can be more than one answer)

• Down concentration gradient

• Using channel protein

• Using carrier protein

• Diffuse through phospholipid bilayer

How sucrose is transported into a plant cell?

• Uses H+ gradient generated by proton ATP-powered proton pump.

• Down its concentration gradient into the cell.

• In the company of H+ that travels against its electrochemical gradient.

• Uses sucrose transporter channel protein.

Statements below are true about receptor medited endocytosis EXCEPT .

• It is a specialized type of pinocytosis.

• It is a type of passive transport

• Substance can be acquired even in low quantities in extracellular fluid

• It enables cells to acquire bulk quantities of specific substance.