In cell biology, the cytoplasm is the material or protoplasm within a living cell, excluding the cell nucleus. It comprises cytosol (the gel-like substance enclosed within the cell membrane) and the organelles – the cell's internal sub-structures. All of the contents of the cells of prokaryote organisms (such as bacteria, which lack a cell nucleus) are contained within the cytoplasm. Within the cells of eukaryote organisms the contents of the cell nucleus are separated from the cytoplasm, and are then called thenucleoplasm. The cytoplasm is about 80% water and usually colorless.[1]
It is within the cytoplasm that most cellular activities occur, such as many metabolic pathways including glycolysis, and processes such as cell division. The concentrated inner area is called the endoplasm and the outer layer is called the cell cortex or theectoplasm.
Movement of calcium ions in and out of the cytoplasm is a signaling activity for metabolic processes.[2]
In plants, movement of the cytoplasm around vacuoles is known as cytoplasmic streaming.
Answer:
The second answer choice
Explanation:
X seems to list attributes for opaque objects, and y lists attributes of Transparent objects.
It is the the curved upper surface of a liquid in a tube.
Answer:
C. results when an alkaline-earth metal loses one of its outermost electrons
Explanation:
An ion can be said to result when an alkaline - earth metal loses one of its outermost electrons.
Ions are charged substances that takes part in chemical reaction.
- An an atom is neutral substance that is a component of an element.
- An ion is charged substance.
- In an ion, the number protons and electrons are unbalanced.
- The number of protons in an atom are the positively charged particles.
- The number of electrons are the negatively charged particles.
When there is an inequality between the number of protons and electrons within an atom, an ion forms.
