Answer Happy

TASK 2: Membranes and membrane transport True / False Indicate
whether the statements below are true or false. Justify the
answers.
1. Stability of lipid bilayer requires special enzymes and
hydrolysis of ATP.
2. Lipids can diffuse within one of the two lipid layers. If the
lipid is to go from one to the other of the two lipid layers, a
special protein is required.
3. In facilitated diffusion, the carrier protein has different
affinity for the molecule when it is to be transported from the
cytosol and extracellularly or extracellularly and into the
cell.
4. Carbohydrates on lipids on the plasma membrane face
extracellularly, while carbohydrates on lipids on the membrane of
the mitochondria face the cytosol.
5. Na + / K + The ATPase pump pumps the same number of Na + and
K + across the diaphragm and is thus electrically neutral.
6. Some membrane proteins can be easily extracted with 1 M NaCl,
while other membrane proteins require a detergent.
7. K + ions can pass through an ion channel towards their
concentration gradient.
8. Photons hit the retina and generate an action potential. The
amplitude of the action potential is proportional to the light
intensity.
9. Two neurons communicate with each other via an electrical
synapse