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

900

---

What is intracellular digestion?

873

---

What are heterochromatin and euchromatin?

938

---

What are cytoplasmic inclusions?

878

---

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

964

---

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

936

---

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

879

---

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

918

---

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

955

---

What is extracellular digestion?

893

---

What are some examples of secretory cells?

925

---

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

906

---

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

892

---

What does the formula DPD = SF – TP mean?

942

---

What is cyclosis?

912

---