Let's solve the problems step by step:
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Problem 1: Which is the most basic unit of all living things?
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Options:
- A. cells
- B. organisms
- C. systems
- D. tissues
Explanation:
The cell is the smallest unit of life that can perform all the necessary functions to sustain life. All living organisms are composed of one or more cells.
Answer:
A. cells
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Problem 2: Which part of the cell is like the “brain” of the cell?
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Options:
- A. cell wall
- B. cytoplasm
- C. nucleus
- D. vacuole
Explanation:
The nucleus is often referred to as the "brain" of the cell because it contains the genetic material (DNA) and controls the cell's activities, such as growth, metabolism, and reproduction.
Answer:
C. nucleus
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Problem 3: Which of the following is NOT a function of the vacuole?
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Options:
- A. stores water
- B. holds food
- C. stores waste
- D. provides energy
Explanation:
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Vacuoles are membrane-bound organelles that serve various functions in plant and animal cells:
- They store water, nutrients, and waste products.
- In plant cells, they help maintain turgor pressure.
- However, vacuoles do not provide energy. Energy production occurs in the mitochondria through cellular respiration.
Answer:
D. provides energy
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Problem 4: The diagram shows the parts of the plant and animal cells.
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a. Other than the central vacuole, name TWO (2) structures that are found in both the animal and plant cells.
Explanation:
From the provided diagrams of the animal and plant cells, we can identify common structures:
1.
Nucleus: Present in both animal and plant cells; it contains the genetic material (DNA).
2.
Cytoplasm: The gel-like substance inside the cell where most cellular activities occur.
3.
Cell membrane: The outer boundary of the cell that regulates what enters and exits the cell.
4.
Mitochondria: Organelles responsible for producing energy (ATP) through cellular respiration.
Since the question asks for two structures other than the central vacuole, we can choose any two from the list above. For example:
-
Nucleus
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Cytoplasm
Answer:
Nucleus, Cytoplasm
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Final Answers:
1.
A. cells
2.
C. nucleus
3.
D. provides energy
4.
Nucleus, Cytoplasm
Boxed Final Answer:
\[
\boxed{\text{A, C, D, Nucleus, Cytoplasm}}
\]
Parent Tip: Review the logic above to help your child master the concept of plant cell and animal cell worksheet.
