Question

3.1 Introduction to Cells Lesson 3.1: True or False Name___________________ Class______________ Date________ Write true if the statement is true or false if the statement is false. _____ 1. All organisms are made of more than one cell. _____ 2. Early microscopes created by Leeuwenhoek were almost as strong as modern light microscopes. _____ 3. Proteins are made on ribosomes. _____ 4. Prokaryotic cells have a nucleus. _____ 5. The plasma membrane forms the physical boundary between the cell and its environment. _____ 6. For cells, a smaller size is more efficient. _____ 7. Compared to eukaryotic cells, prokaryotic cells are very complex. _____ 8. Organelles are located within the cytoplasm. _____ 9. Viruses are similar to prokaryotic cells. _____ 10. All cells have a plasma membrane, cytoplasm, and ribosomes. _____ 11. DNA is located in the nucleus of prokaryotic cells. _____ 12. Organelles allow eukaryotic cells to carry out more functions than prokaryotic cells. _____ 13. Viruses are considered living organisms. _____ 14. Most cells are about the size of the period at the end of this sentence. _____ 15. Observation of cork helped in the discovery of cells.

Answer 1

Answer:

1. All organisms are made of more than one cell. false

2. Early microscopes created by Leeuwenhoek were almost as strong as modern light microscopes.  false

3. Proteins are made on ribosomes. true

4. Prokaryotic cells have a nucleus. false

5. The plasma membrane forms the physical boundary between the cell and its environment. true

6. For cells, a smaller size is more efficient. false

7. Compared to eukaryotic cells, prokaryotic cells are very complex. false

8. Organelles are located within the cytoplasm. true

9. Viruses are similar to prokaryotic cells. true

10. All cells have a plasma membrane, cytoplasm, and ribosomes. true

11. DNA is located in the nucleus of prokaryotic cells. false

12. Organelles allow eukaryotic cells to carry out more functions than prokaryotic cells. true

13. Viruses are considered living organisms. false

14. Most cells are about the size of the period at the end of this sentence. true

15. Observation of cork helped in the discovery of cells. true

Explanation:

Some organisms are unicellular and some are multicellular. The first microscope which was invented by Leeuwenhoek is weaker as compared to modern microscope. Ribosomes are the organelle of the cell which is responsible for protein synthesis. Prokaryotes do not have true nucleus. The membrane which is surrounded by the cell is called plasma membrane. Viruses are considered as both living and non-living. All the organelles of the cell is located in the cytoplasm of the cell. There is no nucleus in the prokaryotes so DNA or genetic material is present in the cytoplasm.