Biology, asked by sireesha020283, 9 months ago

1. Which of the following is the fundamental unit of life? A) Organ B) Organism C) Cell D) Ecosystem 2. Which of the following is a thin, flexible layer surrounding the cells of all living things and it basically separates the inside of cells from the outside? A) Cell membrane B) Nuclear membrane C) Tonoplast D) None 3. The cell membrane is also known as: A) Cytoplasmic membrane B) Plasma membrane C) Protoplasmic membrane D) Both A and B 4. It is an outer layer surrounding certain type of cells and is usually present outside of the cell membrane. What is it? A) Cell membrane B) Nuclear membrane C) Cell wall D) All A, B and C 5. Which of the following is not seen with the compound microscope? A) Cytoplasm B) Nucleus C) Chloroplast D) None of the above 6. Choose the correct statement. Statement I: All the plant cells do not have chloroplasts. Statement II: Chloroplasts are found in the cells of green leaves, tender stems etc. A) Statement I B) Statement II C) Statements I and II D) None 7. We can observe the structure of cell membrane only through: A) an electron microscope B) a simple microscope C) both A and B D) a compound microscope 8. The cell wall is: A) a tough but flexible B) porous layer C) lends a definite shape D) All the above 9. Robert Brown discovered the nucleus in the year: A) 1831 B) 1833 C) 1832 D) 1834 10. ‘Cell theory’ was given by: A) Hooke B) Virchow C) Haeckel D) Schleiden and Schwann 11. Cell arises from pre-existing cell was stated by: A) Virchow B) Schleiden C) Hooke D) Haeckel 12. Cyanobacteria and blue-green algae are: A) Eukaryotes without nuclear membrane B) Eukaryotes with nuclear membrane C) Prokaryotes without nuclear membrane D) Prokaryotes with nuclear membrane 13. Identify the option which has correct labeling. A) 1- Mitochondria, 3- Nucleolus, 6- Chloroplast B) 4- Ribosome, 13- Nucleus, 2- Nuclear membrane C) 12- Chloroplast, 11- Vacuole, 10- Cell wall D) 2- Endoplasmic Reitculum, 5- Cell membrane, 6- Lysosome 14. Which of the following are non-membranous? A) Mitochondria B) Ribosomes C) Chloroplast D) Nucleus 15. Select the unique feature seen in only in plant cells. A) Chlorophyll B) Vacuole C) Cell wall D) All the above

Answers

Answered by pragatisumiran
2

Answer:

1. Cell

2. Cell membrane

3. Plasma Membrane

4. cell wall

5. None of the above

6. Statement 1and 2

7. Both a and b

8. All the above

9. 1831

10. Schleiden

11. Virchow

12. prokaryotes without nuclear membrane

13. Ribosome, nucleus nd nuclear membrane

14. Mitochondria

15. All the above

Answered by Anonymous
5

Answer:

1.cell

2.cell membrane

3.plasma membrane

4.cell wall

5.none

6.statement 1 and 2

7.electron microscope

8.a tough but flexible

9.1831

10.schleiden and schwann

11.virchow

12.prokaryotes without nuclear membrane

13.not understand the question sorryy

14.ribosomes

15.vaccuoles

I hope these answer are helpful too you !!!

thanks

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