A physical change occur when objects or substances undergo a change that does not change in which the composition of a substance changes or one or more substances combine or break up from new substances.
Answer:
1.)Carbohydrates
2.) Lipids
3.)Proteins
4.)Nucleic acids
Explanation:
1. Carbohydrates
The major carbohydrates found in cell walls are cellulose, hemicellulose and pectin. The cellulose microfibrils are bonded through hemicellulosic tethers to give the cellulose-hemicellulose network, that is found in the pectin matrix.
2. Lipids
Cell membrane are majorly made up of phospholipids, glycolipids, proteins, and cholesterol. The lipid found mostly though our the membrane are the phospholipids.
3. Enzymes/proteins
Enzymes are biological molecules that are protein in nature and accelerate the rate of the chemical reactions that occurs within cells.
4. Nucleic Acid
Nucleic acids aid major activities in the cell by serving as the repository of the genetic materials needed for the transfer of inherited characteristics from parents to offspring and from an individual cell to another cell
Answer:
Because the sun never sets in the summer, Arctic plants can photosynthesize 24 hours a day, constantly producing energy storage molecules that are stored in their bodies, available for animals to eat.
Hope this helps ❤️.
Platelets (prevent blood loss) and white blood cells (fight infection)
