Hydrogen bonds a protein with no quaternary structure a protein
Answer: Mycorrhiza
Explanation: Mycorrhiza is a symbiotic relationship between a plant and a fungi. Nearly 80 percent of all plants with root systems participate in this mutualistic relationship. In mycorrhiza, the fungus forms a haustoria that penetrates the cell walls of the plant's roots. The fungus absorbs all the nutrients from the roots as they are transported to the plant. In return, the fungus gives the plant necessary chemicals and minerals that it cannot properly reach on its own.
I believe it goes in the following order top down
1 5 3 4 2.
When molecules are being transported opposite to the molecules concentration gradient.
Hope i helped!
