Question

What are the structures that enclose most of the organelles, as well as the entire cell itself, called? __________________________________

b) Are these structures simple in composition (like a ballon) or are they complex, composed of many kinds of molecules? ____________________________________________

c) Name and describe the kinds of molecules that form the basic composition of these structures. What about these molecules enables them to align so that one end contacts water molecules while the other end keeps away from water?

___________________________________________________________________________________________

Answer 1

a. nuclear membrane, nucleoplasm, chromosomes, and nucleolus.

b.

A small organ-like structure present inside the cell is called a cell organelle. It has a particular structural makeup and performs a specific function. Single membrane-bound: Some organelles are bounded by a single membrane. For example, vacuole, lysosome, Golgi Apparatus, Endoplasmic Reticulum etc

Central Vacuole The central vacuole is found only in plant cells. It is filled with water and is pressurised, like a balloon. This forces all the other organelles within the cell out toward the cell wall. This pressure is called turgor pressure and is what gives plants their "crisp" and firm structure.

c.

The nucleolus is a round body located inside the nucleus of a eukaryotic cell. ... The nucleolus makes ribosomal subunits from proteins and ribosomal RNA, also known as rRNA. It then sends the subunits out to the rest of the cell where they combine into complete ribosomes.