Cytochemical investigation has shown high concentration of hydrolytic enzymes in the cytoplasm of cells. The activity of which organelles does this fact indicate?

In the course of a scientific experiment a researcher destroyed a structure of one of cell parts, which broke cell division capacity. Which structure has been affected?

Prolonged influence of toxic substances on the organism led to considerable protein synthesis decrease in hepatocytes. Which organelles have suffered of intoxication most of all?

A ribosomal structure has been affected in a cell. What processes will suffer first of all?

Electron microscopy reveals the cell in which nucleolus and nuclear envelope are absent. Chromosomes are freely disposed in cytoplasm, centrioles migrate to poles of the cell. What phase of cell cycle is it?

For laboratory investigations a smear of the oral cavity epithelium is taken by spatula. What is the probable method of the cell division in this tissue?

If you could mark and count all PMNs (neutrophils) released from the hematopoietic marrow of a normal, healthy individual in one day and then immediately inventory the marked cells free in the blood and in connective tissue, you'd find a deficit: more cells are released than show up in your inventory. The chief explanation for this is:

A large number of cisterns flattened in the center and extended on the periphery and small vesicles with secretory granules were found in the biopsy hepatocytes during the electron microscopic study of the biliary pole. Name of this organelle is:

The patient was hospitalized in the hospital with poisoning. It was established that the detoxification processes were disordered in the liver. Which organelles of hepatocytes were injured?

In mitotically dividing cell sister chromatids are at opposite poles of the cell. What stage of mitosis is it?

The cell was treated by a substance, which blocks the nucleotide phosphorylation process in the mitochondria. What process will be broken?

The study of mitotic cycle phases of the onion root revealed the cell, in which the chromosomes are situated in the equatorial plane, forming a star. What stage of the cell mitosis is it?

At the electronic microphotography the nucleus is surrounded by the thin lamina of biological membrane. How does it call?

There are three periods of the cell cycle interphase. What process takes the place during the S-period?

Which of the organelles has a phospholipid bilayer?

Stomach cells produce a large amount of enzymes to digest food. What organelle do stomach cells have to perform their job?

Pancreatic cells produce the hormone insulin. After the protein-based hormone is made, it is transported throughout the cell and eventually expelled into the environment through vesicles. What organelles do pancreatic cells have to perform their job?

Discovered the nucleus of a cell

Scientists who created the cell theory.

A =? B = ?

Explains various observations regarding the structure of functional cell membranes.