Ribosomes,nucleolus
Microtubules are made of protein subunits called tubulin. These tubulin subunits polymerize to form long, hollow tubular structures that are essential for various cellular processes such as cell division, cell shape maintenance, and intracellular transport.
cell membrane
Unlike the cell membrane, the cell wall is made of tough fibres (D). The cell membrane is mainly composed of a lipid bilayer - which means it is flexible. Plant cell walls are made of cellulose, hemicellulose and pectin - which make the cell rigid.
chromosomes
The nucleus is the part of the cell that contains chromosomes made of DNA. Within the nucleus, the DNA is organized into structures called chromosomes, which contain the genetic information of the cell.
Molecules : membranes are mostly fats, most everything else is proteins. DNA is mainly sugars.
Microtubules are made of protein subunits called tubulin. These tubulin subunits polymerize to form long, hollow tubular structures that are essential for various cellular processes such as cell division, cell shape maintenance, and intracellular transport.
cell membrane
I suppose you confused the term "globular star cluster". It is the cluster (the group of stars) that is globular (approximately spherical). The term "globular" doesn't refer to the individual stars.
ribo nucleaic acids
These are known as and are called Chromosomes.
Part of the cell is mostly water and minerals called the cell membrane
Plants have a cell wall.It made up of cellulose mainly.
Chromosomes are the threadlike structures that are made up of proteins and DNA. Chromosomes are found in the nucleus of the cell.
Two structures found in a plant cell but not in an animal cell are chloroplasts, which are responsible for photosynthesis, and a cell wall made of cellulose, which provides structural support and protection to the cell.
Astronomers believe the globular clusters are made of old stars because of the lack of heavy elements. The heavy element is very abundant in stars like our sun, so the theory is the globular cluster must be older and formed in a more primitive universe.
ribosomes