Transport proteins (carrier proteins and channel proteins) allow substances into and out of the cell that cannot pass through the phospholipid bilayer (as they’re either to large, charged or not lipid soluble) by facilitated diffusion.
Specifically channel proteins allow ions into and out of the cell by creating a pore in the membrane in which they can move through with their concentration gradient
Answer:
E
Explanation
The structure of saturated fats are not flexible unlike unsaturated fats. ALso in the diagram, there are no double bonds which are present in unsaturated lipids, eliminating A and B. Triglycerides have 3 fatty acids shown with 3 carbons that are connected with long bonds unlike phospholipids that has 2 fatty acids. Therefore the answer is E.
Solution
Cut open an onion.
Use forceps to peel a thin layer of epidermis from the inside.
Lay the layer of epidermis on a microscope slide.
Add a drop of iodine solution to the layer.
Carefully place a coverslip over the layer.
Observe it under a microscope to see onion cells.
Answer: the answer is B
Explanation: Yellow bone marrow is involved in the storage of fats. The fats in yellow bone marrow are stored in cells called adipocytes.
Answer:
healthy diet prevents and protects from diseases like obesity, heart disease, diabetes, cancer and stroke. constantly eating junk food can lead to obesity and chronic diseases like cardiovascular disease, type 2 diabetes, non-alcoholic fatty liver disease and some cancers.
Explanation:
