Mitochondria store genetic information in the form of DNA.
Cell: The Building Block of Life
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Practice Test – MCQs, True/False
TopMultiple Choice Questions
A.
B.
Mitochondria are responsible for the synthesis of proteins.
C.
Mitochondria convert glucose into ATP, providing energy for cellular activities.
D.
Mitochondria are involved in the synthesis of lipids and hormones.
Correct Answer: C
Solution:
Mitochondria are known as the powerhouse of the cell because they convert glucose into ATP through cellular respiration, providing energy for various cellular activities.
Chapter Concept:
Cellular Respiration and Mitochondria
A.
Mitosis
B.
Meiosis
C.
Binary fission
D.
Budding
Correct Answer: B
Solution:
Meiosis is the process where a single cell divides twice to produce four cells containing half the original amount of genetic information.
Chapter Concept:
Prokaryotic vs Eukaryotic Cells
A.
Binary fission
B.
Mitosis
C.
Meiosis
D.
Budding
Correct Answer: C
Solution:
In meiosis, the parent cell divides twice to form four daughter cells, each with half the number of chromosomes.
Chapter Concept:
Mitosis and Meiosis
A.
Chloroplasts, because they synthesize food
B.
Nucleus, because it contains genetic material
C.
Mitochondria, because they produce ATP
D.
Golgi apparatus, because it packages proteins
Correct Answer: C
Solution:
Mitochondria are known as the 'powerhouse of the cell' because they produce ATP, the energy currency of the cell, during cellular respiration.
Chapter Concept:
Cell Organelles and Functions
A.
Diffusion
B.
Osmosis
C.
Active Transport
D.
Endocytosis
Correct Answer: B
Solution:
Osmosis is the movement of water across a selectively permeable membrane. In a hypertonic solution, water moves out of the cell, causing it to shrink.
Chapter Concept:
Cellular Respiration and Mitochondria
A.
The cell would swell and burst.
B.
The cell would shrink as water exits the cell.
C.
The cell would remain unchanged.
D.
The cell would become more rigid due to increased turgor pressure.
Correct Answer: B
Solution:
In a hypertonic solution, the solute concentration outside the cell is higher than inside, causing water to leave the cell, leading to shrinkage.
Chapter Concept:
Cell Membrane and Cell Wall
A.
The cell will swell and burst.
B.
The cell will shrink as water leaves the cell.
C.
The cell will remain unchanged.
D.
The cell will become more turgid.
Correct Answer: B
Solution:
In a hypertonic solution, the solute concentration outside the cell is greater than inside, causing water to leave the cell and the cell to shrink.
Chapter Concept:
Cell Theory
A.
Chromatin
B.
Nucleolus
C.
Nuclear pore
D.
Nuclear membrane
Correct Answer: B
Solution:
The nucleolus is the dense round body in the nucleus where the synthesis of ribosomal subunits takes place.
Chapter Concept:
Nucleus, DNA, Chromatin and Chromosomes
A.
Storage of starch
B.
Photosynthesis
C.
Protein synthesis
D.
Cellular respiration
Correct Answer: B
Solution:
Chloroplasts contain chlorophyll and are the site of photosynthesis, where light energy is converted into chemical energy.
Chapter Concept:
Plant, Animal and Bacterial Cell Comparison
A.
Both plant and animal cells will burst due to osmotic pressure.
B.
The plant cell will become turgid, while the animal cell may burst.
C.
Both plant and animal cells will shrink.
D.
The plant cell will shrink, while the animal cell will become turgid.
Correct Answer: B
Solution:
In a hypotonic solution, water enters the cell. Plant cells become turgid due to the rigid cell wall, while animal cells may burst as they lack a cell wall.
Chapter Concept:
Prokaryotic vs Eukaryotic Cells
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Cell: The Building Block of Life
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Locked • AI Weakness TrackerTrue or False
Correct Answer: True
Solution:
The Cell Theory states that all living organisms are made up of one or more cells, the cell is the basic unit of structure and function in living beings, and all cells arise from pre-existing cells.
Chapter Concept :
Cell Theory
Correct Answer: True
Solution:
Mitochondria are known as the powerhouses of the cell because they convert glucose into ATP, the energy currency of the cell, through cellular respiration.
Chapter Concept :
Cellular Respiration and Mitochondria
Correct Answer: True
Solution:
The fluid mosaic model is a widely accepted model that explains the structure of the cell membrane as a dynamic arrangement of lipids and proteins, allowing for fluidity and flexibility.
Chapter Concept :
Fluid Mosaic Model
Correct Answer: False
Solution:
Prokaryotic cells lack a well-defined nucleus and membrane-bound organelles. Instead, their genetic material is located in a region called the nucleoid.
Chapter Concept :
Prokaryotic vs Eukaryotic Cells
Correct Answer: True
Solution:
Mitosis is a type of cell division that produces two genetically identical daughter cells from one parent cell, ensuring that each new cell receives the same DNA and number of chromosomes as the parent cell.
Chapter Concept :
Cell Division and Growth
Correct Answer: True
Solution:
Prokaryotic cells do not have a well-defined nucleus; their genetic material is located in a region called the nucleoid. They also lack membrane-bound organelles.
Chapter Concept :
Prokaryotic vs Eukaryotic Cells
Correct Answer: True
Solution:
The cell membrane acts as a selectively permeable barrier, allowing certain substances to pass through while blocking others. In contrast, the cell wall, found in plants, fungi, and bacteria, provides additional structural support and protection.
Chapter Concept :
Cell Membrane and Cell Wall
Correct Answer: False
Solution:
Mitosis results in the formation of two genetically identical daughter cells, not four genetically diverse gametes. It is meiosis that produces four genetically diverse gametes.
Chapter Concept :
Mitosis and Meiosis
Correct Answer: True
Solution:
Osmosis specifically refers to the movement of water molecules across a selectively permeable membrane, from an area of lower solute concentration to an area of higher solute concentration.
Chapter Concept :
Osmosis and Diffusion
Correct Answer: False
Solution:
The Fluid Mosaic Model describes the cell membrane as a dynamic arrangement of lipids and proteins, not static. The molecules can move sideways, flip, and rotate within the membrane, indicating its fluid nature.
Chapter Concept :
Fluid Mosaic Model
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