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Science and Health 5Quiz # 3 June 24, 2011

Directions: Write the word and/or words that is being identified.

_________________1. It is the building block of all matter._________________2. A jelly like substance that surrounds the nucleus and contains the mitochondria, lysosomes and vacuoles._________________3. They are thin, long and threadlike structures which contain the DNA, RNA and a number of proteins._________________4. Each pair of chromosomes in our body is represented by a number except for pair 23. What letters are used to represent chromosome pair 23?_________________5. A new cell that is formed when a sperm cell unites with an egg cell and a new individual is formed._________________6. The ability of a cell to produce an exact copy of itself by a process called cellular division._________________7. What do you call the new cells produced in meiosis which contains only 23 chromosomes or half as many chromosomes as the old cell._________________8. The DNA serves as the blueprint that enables the cells to make an exact copy of themselves and to make another individual of the same species. What does DNA stands for?_________________9. They are fluid-filled membranes for storing food and expelling wastes._________________10. He first discovered cell in 1665 when he observed a sliced cork under a microscope._________________11. Pair of sex chromosomes that represents the male gender.Directions: Enumerate the following.

a. 3 parts of a cell.b. 3 functions of a nucleus.c. 3 components of a chromosome

Science and Health 5Quiz # 3 June 24, 2011

Directions: Write the word and/or words that is being identified.

_________________12. It is the building block of all matter._________________13. A jelly like substance that surrounds the nucleus and contains the mitochondria, lysosomes and vacuoles._________________14. They are thin, long and threadlike structures which contain the DNA, RNA and a number of proteins._________________15. Each pair of chromosomes in our body is represented by a number except for pair 23. What letters are used to represent chromosome pair 23?_________________16. A new cell that is formed when a sperm cell unites with an egg cell and a new individual is formed._________________17. The ability of a cell to produce an exact copy of itself by a process called cellular division._________________18. What do you call the new cells produced in meiosis which contains only 23 chromosomes or half as many chromosomes as the old cell._________________19. The DNA serves as the blueprint that enables the cells to make an exact copy of themselves and to make another individual of the same species. What does DNA stands for?_________________20. They are fluid-filled membranes for storing food and expelling wastes._________________21. He first discovered cell in 1665 when he observed a sliced cork under a microscope._________________22. Pair of sex chromosomes that represents the male gender.Directions: Enumerate the following.

d. 3 parts of a cell.e. 3 functions of a nucleus.f. 3 components of a chromosome