Which macromolecule is a primary component of cell walls, and which argument provides evidence for how the structure of this mol
ecule relates to its purpose within the cell wall? A Lipids are the primary component, and they repel and prevent excess uptake of water because they form carbon chains.
B Lipids are the primary component, and they protect the cell and help maintain its shape because they form carbon rings.
C Carbohydrates are the primary component, and they repel and prevent excess uptake of water because they form carbon chains.
D Carbohydrates are the primary component, and they protect the cell and help maintain its shape because they form carbon rings.
1-Frying an egg , heat flows from the stove into the pan and then into the egg .
2- After a car is turned on , the engine becomes hot . Heat is conducted from the engine to the hood.
