Exam 2 Review

What are characteristics of a plasma membrane with little fluidity?

Which of the following does not have more than one membrane?

• Nucleus

• Rough Endoplasmic Reticulum

• Mitochondria

• Chloroplast

If a channel protein is opened/closed by the pressure of touch, what would you describe this gated channel protein as?

• Voltage-gated channel protein

• Ligand-gated channel protein

• Thermal-gated channel protein

• Mechanically-gated channel protein

What is the difference between a channel protein and a transporter protein?

Out of the following compounds/molecules which would be the most permeable when attempting to cross the plasma membrane?

• Na+

• Glucose

• O₂

• DNA

Does active transport rely only on ATP as the source of its energy? Explain.

Where does glycolysis, Citric acid cycle, and Electron transport chain take place?

Tags

NGSS.HS-LS1-7

What is the difference between cotranslational translocation and post-translational translocation? (Hint: it is regarding ER targeted proteins)

Are mitochondria present in plant cells?

• No, the chloroplast is able to create the energy to supply the cells

• No, the plant cell mutated and evolved to not need that organelle

• Yes, the chloroplast needs the mitochondria to help create enough energy for the cell (50/50 split of energy made from the two organelles)

• Yes, the ATP made through photosynthesis cannot leave the chloroplast. Making the mitochondria necessary to produce ATP for the cell

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

Describe the function of the peroxisome in the cell?

Answer explanation

oxidative metabolism (fatty acids, amino acids, methanol, toxins, etc.)