1 Define symbiosis 2 What macromolecule is found in the nucl

             1.     Define symbiosis

2.     What macromolecule is found in the nucleus?

3.     Define chromatid:

4.     What is the function of the rough endoplasmic reticulum?

5.     What is the function of the Golgi apparatus?

6.     What is the function of lysosomes?

7.     Cite the 4 main steps of the cell division in the right order:

8.     What important function takes place in the cristae membranes of eukaryotic cells?

9.     Give 2 functions of the cytoskeleton of the cell

10.Which is the definition of mycelium?

11.Differentiate between asexual and sexual reproduction:

12.Can protists be photosynthetic?

13.How is Chagas disease transmitted to human?

14.Give 3 examples of organisms that can be classified under parasitic helminths

15.Give one mean of infection by pinworm:

Solution

1.symbiosis is known as the relationship between two different living organisms. in this relationship each gains benefits from each other.

2.the macromolecules found in the cell are proteins, carbohydrates, fats and nucleic acids(DNA and RNA)

3.during the process of DNA replication ther is an increase in the number chromosomes. the rlicated chromosomes from this process is known as chromatids

4.the function of rough endoplasmic reticulum is that it plays a major role in the synthesis of large complex proteins and amino acids.it helps in manufacturing lysozomal enzymes. it also helps in the basic operations of the cell.

5.it hepls in the process and bundling of macromolecules such as proteins and fats when they are synthesized within the cell. it also hepls in the modification, sorting and packaging of the secreted proteins.it also helps during the function of rough endoplasmic reticulum.

6. lysosomes helps in the process of removal of dead cells, metamorphosis, hepls in protein synthesis, hepls in fertilization and also in the process of intracellular digestion.

7.