Amino acids are the building blocks of protein. The amino acid leucine, for example, is the most abundant of all the nitrogen-fixing enzymes. It is found in animal foods such as meat, poultry, fish, eggs, milk, cheese, yogurt, and other dairy products. In the absence of these foods, the body must obtain its nitrogen from other sources, including the soil, plants, or the air.
This process is called “nitrogen fixation” and is essential for the growth and maintenance of plant and animal life. When plants and animals do not have enough nitrogen to grow and reproduce, they die and are replaced by a new generation of plants or animals. The amount of CO 2 that can be absorbed by plants is limited by the availability of nitrogen.
Table of Contents
Which of the following best defines positive nitrogen balance?
The body’s ability to absorb nitrogen is affected by a number of factors, including age, sex, body mass index (BMI), and body composition (fat, muscle, bone, etc.). The more lean muscle mass you have, the more nitrogen you can absorb.
However, if you are overweight or obese, your body can’t absorb as much nitrogen as it would like. In this case, you may need to increase your nitrogen intake in order to maintain a healthy body weight.
Which person is in negative nitrogen balance?
Starving, immobilized, and severely ill people, in contrast, break down tissue protein and lose more nitrogen than they take in; they are said to be “starving” and “incompetent.”. For one thing, the patients in the first group are more likely to have a history of heart disease, diabetes, high blood pressure, or high cholesterol.
They are also less likely than the second group to suffer from chronic obstructive pulmonary disease (COPD), a lung disease that can lead to heart attacks and strokes. These patients also tend to live longer, on average, than their counterparts from the other group. And, as the researchers point out, these patients are healthier than those who do not have COPD or other chronic lung diseases.
The difference, they , may be due to a combination of factors, including the fact that patients who are healthy and well-nourished are less susceptible to the effects of starvation and malnutrition, which can cause the body to produce less of the essential amino acids that are needed to build and maintain muscle tissue.
What are 2 causes of a negative nitrogen balance?
A negative nitrogen balance may occur during physical or emotional stress, starvation, when an individual is on a very low calorie diet, or when the quality of protein is poor (e.g. when protein intake is too low). addition
as well as certain types of cancer
(NCI) and the American Institute for Cancer Research (AICR) recommend that individuals consume no more than 1.2 grams of dietary protein per kilogram of body weight per day.
However, some individuals may need to consume more protein than this to meet their daily protein needs.
Which one of the following is a very important source of energy for nearly all cells?
The sun is the ultimate source of energy for almost all cells because they harness it to make complex organic food that other cells rely on for the energy needed to grow and reproduce. Sun, however, is not the only energy source in the solar system.
These other solar systems are called “solar systems” because they all have a sun, but they are not considered to be part of the Solar System. System” is used to refer to all the planets and moons that are in orbit around the sun.
Which of the following nutrients yield the highest amount of energy per gram when metabolized?
Fat produces more than two times energy per gram than either carbohydrates or protein. The metabolism of the body converts calories into energy. Excess of these vitamins and minerals will be stored as fat in your body. The body uses fat as a source of energy when it is in a state of starvation.
This is called the “hunger hormone” and is released by the pituitary gland in response to hunger. The hunger hormone causes the release of a hormone called glucagon. Glucagon is an insulin-like hormone.
In the absence of insulin, blood glucose levels will rise, causing a rise in blood sugar levels, which in turn will cause the muscles to contract and the heart to beat faster. As a result, the person will feel hungry and will need to eat more to maintain their body weight.
If you do not eat enough calories, your metabolism will not be able to keep up with the increased demand for energy, resulting in weight gain.
What is a negative nitrogen balance definition?
Nitrogen balance is the measure of nitrogen output and input. If someone is taking in less nitrogen than they are excreting, they are in a nitrogen deficit. Nutritional deficiencies can have a significant impact on the health of the nervous system. Nutrients such as iron, zinc, magnesium, calcium, vitamin B12, and vitamin D are essential for the proper functioning of nerve cells.
These nutrients are also necessary for proper brain function. function
In addition, the brain contains the neurotransmitter acetylcholine, which plays an important role in many of these functions.
