What are the substances that constitute the chromatin? What is the difference between chromatin and chromosome?

905

---

What is intracellular digestion?

877

---

What are heterochromatin and euchromatin?

941

---

What are cytoplasmic inclusions?

882

---

What is the wall resistance of plant cells? Does this resistance facilitate or make it difficult the entrance of water in the cell?

985

---

How are cells with delimited nucleus called? What are the main elements of the nucleus?

939

---

Why are salt and sugar used in the production of dried meat and dried fruits?

883

---

In the phase when the cell is not dividing (interphase) is there activity within the cell nucleus?

921

---

How do the amoeboid movements occur? What are examples of beings and cells that use such movements for locomotion?

962

---

What is extracellular digestion?

897

---

What are some examples of secretory cells?

930

---

What are some examples of biological activities in which osmosis plays important role?

909

---

What is the main cell organelle involved in cell digestion? What are the properties of that organelle that enable it to the task?

899

---

What does the formula DPD = SF – TP mean?

946

---

What is cyclosis?

916

---