Answer:
The plant cell wall is strengthened by the molecular structure of cellulose. Cellulose is made up of ß-glucose arranged upside down, this arrangement aided hydrogen bonds between the hydrogen ions of the hydroxyl group and oxygen of the of the ring of same betta -glucose.
The aggregation of the hydrogen bonds give bundles of strong tensile strength of cellulose called the microfibrils (of 60-70 celluose molecules).They are held together in bundled called fibers.T<u>hese is the source of plant cell walls strength.
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Collagen is the main extracellur matrix (EM) in animal cells.It is a glycoprotein made up of 25%of body protein of animals.Each collagen molecule is made of helix shaped ,three polypeptide chains, wound around each other to form<u> triple helix.</u>The bonds holding helix together are hydrogen and covalent bonds.
Each triple helix is attached to adjacent collagen molecule, parallel to it. The covalent bonds formed a cross link which held the collagen molecules together forming FIBRILS. This gives flexibility to collagen, while maitaing strong tensile strength. This is what is responsible for the structural strength of cell membrane
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.The EM,is futher reinforced with carbohydrate molecules(proteoglycans) which<u> aided in water movements by osmosis following sodium movements into the matrix.</u>
<span>The phase of the cell cycle that is most similar between a cell that will divide by mitosis and one that will divide by meiosis is the S-phase. </span>I hope my answer has come to your help. God bless and have a nice day ahead! Feel free to ask more questions.
Answer:
Grassland
Explanation:
Healthy grasslands are important habitats for birds and other wildlife, and also places where we farm and ranch. They provide food, cover, space and safe access to water for both wildlife and livestock.
Commensalism is the relationship between two organisms where one benefits from the other and the other is not affected in anyway. The interaction between the remora and the shark demonstrates this relationship.
