1. What are organ systems made of?
A cells
B. organelle
C. organs
D tissues
2. Which statement best describes how organ systems work together?
A. they perform their respective functions to sustain life
B. they perform independently from each other
C. they perform with the same functions
D. they perform as needed
3. Which sequence correctly shows the level of biological organization from the lowest level to the highest?
1. tissue 2. Organs 3. cell 4. organism 5. organ systems
A. 3,1,2,5,4
B. 3,1,4,2,5
C.3.1,5,4,2
D. 3,1,5 2,4
4. The brain controls many activities of the body. To what organ system does it belong?
A circulatory B. digestive
C. nervous
D. respiratory
5. Which of the following statements best describe how organ systems make up an organism?
A. Organisms are made up of tissues and cells present in organs working independently.
B. Different organs work together to form an organism.
C. Different organ systems make up an organism.
D. Organs work together to form organism.
6. What is the structural and functional unit of all living organisms?
A. Cell
B. Organ
C. Organelle
D. Ribosome
7. Which is NOT a correct statement about cells as the structural and functional unit of life?
A. They break down molecules.
C. They form the structure of organism.
B. They are the building blocks of life.
D. They perform the basic functions of life.
8. What is the main difference between animal and plant cells?
A. Plant cells have large vacuoles while animal cells have larger vacuoles.
B. Animal cells have small vacuoles while plants cells have none at all.
C. Cell wall is not found in plant cells but present in animal cells.
D. Rigid cell wall is absent in animal cell but present in plant cell.
9. When a cell is observed using a compound light microscope, which of the following structures will be seen?
A. DNA and RNA
C. Carbohydrates, lipids, proteins
B. All cytoplasmic organelles.
D. Cell membrane, cytoplasm, nucleus
10. Which of the following correctly matches a cellular structure with its function?
A. Mitochondria-protein synthesis
C. Nucleus-controls the activities of the cell
B. Ribosomes-supply energy to the cell D. Cytoplasm-gives shape and protection to plants