Welcome to the comprehensive second-quarter multiple-choice examination reviewer designed to sharpen the skills and knowledge of students across grades 7 to 10. This meticulously crafted resource aims to provide a thorough understanding of the diverse subjects covered during this quarter.
This reviewer encompasses a wide array of subjects and topics that are fundamental to each grade level's curriculum. From the foundational concepts in mathematics to the intricacies of language arts, sciences, and social studies, this resource aims to aid students in reinforcing their understanding and mastering the essential concepts.
 |
| Science 7 Quarter 2 Examination Reviewer Part 2 |
Choose the letter of the best answer in each questions.
1. What is the function of the cell’s nucleus?
A. It is the site for protein synthesis.
B. It keeps all the parts of the cell inside and act as a boundary.
C. It is the place within the cell where all cellular activities happen.
D. It controls and regulates all cell activities and it contains the cell's DNA.
VIEW ANSWER
Option D
2. How does the cell membrane of an animal cell works?
A. It holds the organelles in place.
B. It contains water and food for cell.
C. It directs the activity of the cell – for example, when it grows and divides.
D.It controls what enters and exits the cell such as water, nutrients and waste and thereby protects and supports the cell.
VIEW ANSWER
Option D
3. Which organelle is responsible for the transport of undigested material to cell membrane for removal?
A. Centriole
B. Chromosome
C. Lysosome
D. Peroxisome
VIEW ANSWER
Option D
4. Mitochondria is one of the important organelles in an animal cell and is essential for vital cellular activities to happen. Why does the mitochondria known as the “powerhouse” of the cell?
A. It has a flagellum.
B. It has double membrane structure.
C. It is one of the major organelles in the cell.
D. It produces energy through chemical reactions.
VIEW ANSWER
Option D
5. What organelle is made up of RNA and functions for protein synthesis?
A. Lysosome
B. Ribosome
C. Golgi Apparatus
D. Endoplasmic Reticulum
VIEW ANSWER
Option B
6. In your homes there is a need to ensure that the food supplies are well-kept, stored and labelled for easy access and usage and to avoid spoilage. In an animal cell there is also an organelle that functions the same way like your refrigerator at home. Why is the Golgi apparatus similar to the refrigerator you have at home?
A. It moves materials around the cell.
B. It clean up the cell’s waste products.
C. It breaks down food and release energy for the cell.
D. It packages, stores, and secretes energy for the cell.
VIEW ANSWER
Option D
7. Which organelle is responsible for the movement of materials, substances and nutrients around and serves as the canal of the cell?
A. Endoplasmic Reticulum
B. Nucleolus
C. Peroxisome
D. Vesicle
VIEW ANSWER
Option A
8. The protoplasm is composed of inorganic and organic compounds like carbohydrates, proteins, lipids and nucleic acids. Where is the protoplasm located inside the cell?
A. Cell Membrane
B. Cytoplasm
C. Nucleus
D. Organelle
VIEW ANSWER
Option B
9. To ensure that our homes are free from pathogens we make sure to use disinfectants. The animal cell has also an organelle that serves like a disinfectant to ensure that cells are healthy and can proceed with growth and reproduction. Why are lysosomes called as the “Lysol’s” of the cell?
A. They digest fatty acids and ethanol.
B. They clean up cells wastes products.
C. They are involved and active during cell division.
D. They carry food materials into the cell and wastes out products out.
VIEW ANSWER
Option B
10. Is it TRUE that nucleus is the brain of the cell?
A. Yes, because it leads the entire activity of the cell
B. No, because it is the mitochondrion who make it.
C. No, because it is the cell wall who controls the cell.
D. Yes, because it commands on the entire activity of the cell.
VIEW ANSWER
Option A
11. Ribosomes can be free or attached. What type of endoplasmic reticulum has attached ribosomes?
A. Long Endoplasmic Reticulum
B. Short Endoplasmic Reticulum
C. Rough Endoplasmic Reticulum
D. Smooth Endoplasmic Reticulum
VIEW ANSWER
Option C
12. How is cell wall compared to a perimeter fence?
A. It guards the activity of the cell.
B. It protects the entire part of the cell.
C. It helps the cell to check what goes in and goes out.
D. It defends the entire cell from any foreign bodies that will invade the entire parts.
VIEW ANSWER
Option D
13. Why is DNA called to be the blueprint of an organism?
A. It contains direction that leads an organism.
B.It contains signals for normal functioning of an organism.
C. It contains instructions for traits and characteristics of an organism.
D. It contains nutrients and substances for the development of an organism.
VIEW ANSWER
Option C
14. What is a cell?
A. A number
B.An animal
C. An imagination
D. A microscopic structure
VIEW ANSWER
Option D
15. When was the cell first discovered?
A. 1655
B. 1665
C. 1675
D. 1685
VIEW ANSWER
Option B
16. Who was the Biologist who discovered the cell?
A. Anton Van Leeuwenhoek
B. Theodore Schwann
C. Matthias Schleiden
D. Robert Hooke
VIEW ANSWER
Option D
17. Who among the following scientists below is NOT a proponent of the cell theory?
A. Matthias Schleiden
B. Theodore Schwann
C. Rudolph Virchow
D. Robert Hooke
VIEW ANSWER
Option D
18. Which of the following comprises a greater portion in a cell?
A. DNA
B. RNA
C. Water
D. Protein
VIEW ANSWER
Option D
19. Cells are considered as structural and functional unit of life. Do plants and animals have the same type cell?
A. Yes, human and animals have the same type of cells.
B. No, human and animals cells are different in terms of shape.
C. Yes, all organisms are composed of cells, thus they have the same type too.
D. No, human and animals cells are different in shape, size, structures and functions.
VIEW ANSWER
Option B
20. What part of the flower is the most attractive where it uses to attract insects?
A. Ovary
B. Petals
C. Sepals
D. Style
VIEW ANSWER
Option B