The nitrogen cycle is arguably the second most important cycle, after the carbon cycle, to living organisms. Nitrogen is essential to plant growth, and therefore is a significant contributor to the human food chain, but its presence in the environment is strongly influenced by anthropogenic ...
The Nitrogen Cycle is one of our planet's most important nutrient or biogeochemical cycles. Why? Because nitrogen is an essential building block of all the amino acids which make up proteins, and is a critical element of the nucleic acids, DNA and RNA. In short, without nitrogen life as ...
百度试题 结果1 题目39 Which process in the nitrogen cycle is involved in the breakdown of amino acids in living organisms?A A deamination B decomposition C denitrification D digestion 相关知识点: 试题来源: 解析 A 反馈 收藏
The nitrogen cycle is the system by which nitrogen is converted into different chemical forms, some usable to humans and animals and some not, as it circulates among the atmosphere, the land and the oceans. Encyclopaedia Britannica/Getty Images/HowStuffWorks Living things require nitrogen for ...
Nitrous Oxide is a greenhouse gas. Too much nitrous oxide can lead to acid rain. How do humans impact the Nitrogen Cycle? Combustion of fossil fuels releases nitric oxide into the air which combines with other elements to form smog and acid rain. ...
Nitrogen is an element that is crucial for all living things because it is a chief component of amino acids. Amino acids make up proteins, which make up many parts of living things and do work for cells.Answer and Explanation: The nitrogen cycle is the process by which nitrogen circulates...
Human Impacts on the Nitrogen Cycle Since nitrogen is often a limiting factor for plant growth in natural environments, farmers add nitrogen to the soil as fertilizer to increase agricultural yield. Agricultural runoff into aquatic ecosystems can result in eutrophication and unnaturally rapid growth of...
g. the NITROGEN CYCLE. 如果这种元素是生命活动必需的,那么这种循环就叫做营养循环,例如氮循环。 plb.snnu.edu.cn 3. The nitrogen cycle is destoyed. Nitrate has become one of the most common environmental pollution factors in many parts of the world. 其中硝酸盐已成为世界上许多地区地下水污染最普遍...
ammonium ions into nitrate ions.nitrification;(iii) Explain the effects of nitrate ion deficiency on plant growth.plants absorb (nitrogen as) nitrate (ions)neede to make, amino acids/(named)proteins,to make DNA/ RNA/ nucleotides/bases protein DNA, is neede for, growth /cell division/mitosis...
N is an important goal. This fact sheet provides a brief overview of the important components of the N cycle to aid in reaching that goal. Nitrogen Cycle The N cycle illustrates how N from manure, fertilizers and plants moves through the soil to ...