What are differentiations of the cell membrane?

515

---

What is the relation between concentration gradient and active and passive transport?

504

---

What are the three main types of passive transport?

497

---

What is the energy source used in active transport through biological membranes?

491

---

What is the difference between simple and facilitated diffusion? Facilitated by which type of molecule does the term “facilitated” mean?

477

---

What is the difference between chromatin and chromosome?

515

---

How does the intensity of facilitated diffusion vary in relation to the concentration of the moved substance? What is the limiting factor?

501

---

How does the intensity of simple diffusion vary in relation to the concentration gradient of the moved substance?

506

---

Without saturation of transport proteins and under same concentration gradient how can the speed of simple diffusion be compared to the speed of facilitated diffusion?

492

---

What are the molecular facts that support the hypothesis? To which other cellular organelles the hypothesis can also be applied?

531

---

What is the endosymbiotic hypothesis about the origin of mitochondria?

564

---

Where in the cell can ribosomes be found?

500

---

Of what substance the plant cell wall is made? Is that substance a polymer made of which monomer?

482

---

What are the substances that constitute the chromatin?

462

---

What is the main biological function of ribosomes?

523

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