Abiology teacher asks his class to make models of a plant cell, an animal cell, and a bacterial cell. aside from cytoplasm and the cell membrane, which other cell structure will the students need to make for all three models? a. ribosome b. nucleus c. golgi apparatus d. chloroplast e. cell wall

The correct answer will be option A (ribosome).

Explanation:.

Bacteria cell is a prokaryotic cell whereas plant and animal cells are eukaryotic cells.

Ribosomes are the structures programmed to perform the translation of the DNA to form a protein molecule. These structures are found in the all  prokaryotic as well as eukaryotic cells that is from bacteria to plant and animal cells.

In bacteria ribosomes are mostly present as free ribosomes in cytoplasm whereas in animal and plant cells they can be attached to the endoplasmic reticulum or free in the cytoplasm.

Thus, option A is the correct answer.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!