Answer: Plant Cell
Explanation: Since I cant see in your question about what structure is about I have found that it might be the plant structure and I hope that this would help. I will also post you a picture of it.
A is Vacuole
B is Chloroplast
C is Cell membrane
D is Golgi bodies
E is Smooth and rough endoplasmic reticulum
F is Cell wall
This structure is a plant cell structure and it has a cell wall and plasma membrane.
Also, it has vacuoles in the center that are taking much space since they are huge.
Since it is a plant cell it has a chlorophyll and with it organelles and both of them are called chloroplasts.
Chlorophyll is giving the plant cell a green color. This kind of cell is a basic and the most important for the Plantae kingdom organisms.
Answer:
A vaccum should be used for the control group chamber.
Explanation:
In an experiment, a control is an experiment or observation designed to minimize the effects of variables other than the independent variable. The introduction of a control increases the reliability of the results; often through a comparison between the control measurements and the other measurements.
A vaccum according to this experiment is a chamber that will have no pressure within it. This will give a benchmark of the effect of pressure in this experiment.
The only logical answer would be C. Unicellular, but the answers seem to be all wrong.