Question

The diagram shows a plant cell.



Which table correctly identifies the structure and function for each of the letters in the diagram?
A.
Letter Structure Function
W membrane controls what can enter and exit the cell
X chloroplast converts energy from the Sun into food
Y nucleus controls functions of the cell and contains genetic information
Z mitochondrion creates energy for the cell
B.
Letter Structure Function
W mitochondrion converts energy from the Sun into food
X nucleus controls what can enter and exit the cell
Y membrane controls functions of the cell and contains genetic information
Z chloroplast creates energy for the cell
C.
Letter Structure Function
W membrane controls functions of the cell and contains genetic information
X mitochondrion creates energy for the cell
Y chloroplast controls what can enter and exit the cell
Z nucleus converts energy from the Sun into food
D.
Letter Structure Function
W mitochondrion controls functions of the cell and contains genetic information
X chloroplast converts energy from the Sun into food
Y nucleus controls what can enter and exit the cell
Z membrane creates energy for the cell

Answer 1

To determine the correct identification of the structure and function for each part of a plant cell, we first need to understand the roles of the different organelles:

1. **Cell Membrane**: Controls what can enter and exit the cell.
2. **Chloroplast**: Converts energy from the sun into food (photosynthesis).
3. **Nucleus**: Controls functions of the cell and contains genetic information (DNA).
4. **Mitochondrion**: Creates energy for the cell (ATP through cellular respiration).

Now, evaluating each option:

**A**
- W: Membrane - Correct function (controls what can enter and exit the cell)
- X: Chloroplast - Correct function (converts energy from the Sun into food)
- Y: Nucleus - Correct function (controls functions of the cell and contains genetic information)
- Z: Mitochondrion - Correct function (creates energy for the cell)

This table is correct.

**B**
- W: Mitochondrion - Incorrect function (mitochondrion does not convert energy from the Sun)
- X: Nucleus - Incorrect function (nucleus does not control what enters/exits the cell)
- Y: Membrane - Incorrect function (membrane does not control functions of the cell or contain genetic info)
- Z: Chloroplast - Incorrect function (chloroplast does not create energy for the cell)

This table is incorrect.

**C**
- W: Membrane - Incorrect function (membrane does not control functions of the cell or contain genetic info)
- X: Mitochondrion - Correct function (creates energy for the cell)
- Y: Chloroplast - Incorrect function (chloroplast does not control what enters/exits the cell)
- Z: Nucleus - Incorrect function (nucleus does not convert energy from the Sun)

This table is incorrect.

**D**
- W: Mitochondrion - Incorrect function (mitochondrion does not control functions of the cell or contain genetic info)
- X: Chloroplast - Correct function (converts energy from the Sun into food)
- Y: Nucleus - Incorrect function (nucleus does not control what enters/exits the cell)
- Z: Membrane - Incorrect function (membrane does not create energy for the cell)

This table is incorrect.

Given this analysis, the correct answer is **A**, as it accurately identifies the structure and function of each part of the plant cell.