Yes, short-term protein deprivation increases testosterone production in the body. Especially when the muscles are already damaged from a previously weight-training session or other intense exercise....
I hope this may be the answer of your quesion. Blood protein Haemoglobin carries Oxygen and Carbond di oxide in the blood stream to carry out respiration
You can get protein by eating foods that are good sources of it. Some good examples are: poultry, fish, beans, eggs, milk, cheese, yogurt, and peanut butter.
No its absolutely wrong. Proteins what we eat will get digeseted into aminacids. May be these aminoacids may be taken later for the synthesis of protein.