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>
Answer:
Explanation: Primary succession occurs when new land is formed or bare rock is exposed, providing a habitat that can be colonized for the first time. For example, primary succession may take place following the eruption of volcanoes, such as those on the Big Island of Hawaii. As lava flows into the ocean, new rock is formed.
Answer: north Austria have very dry summers and the winters are cooler and drier
Explanation:
Answer:
Release energy for plant growth
Explanation:
Photosynthesis equation:
6CO2+6H2O -> C6H12O6+O2
The plant is using that CO2 (carbon dioxide) and H2O (water) to build its structure, grow, develop itself!
Answer:
Good sources of protein in the diet include meat, poultry, fish, dairy products, eggs, legumes or pulses (beans, lentils and peas), and nuts. Many nutritionists recommend that we eat lean meats and low fat dairy if these foods are part of our diet. Our bodies can make some of the amino acids needed to make our body proteins, but we must obtain the others from our diet. The amino acids whic
Explanation:
