Biogeochemical Cycles - Video notetaking Name ____________________________
Date __________________ Block ______
Beverly Science – Nitrogen Cycle
1. What percent of the atmosphere consists of nitrogen gas? _______________________
2. Why can’t organisms use the nitrogen that is found in the atmosphere? ______________
____________________________________________________________________
3. Name the vitally important organic macromolecules in which nitrogen is needed. ______________________________ and _________________________________
4. Which types of organisms perform nitrogen fixation, nitrification, ammonification, and denitrification? ______________________________________________________
5. How is denitrification different from nitrogen fixation, nitrification, or ammonification? ____________________________________________________________________
____________________________________________________________________
6. What does the word assimilation mean? ________________________________ At what point does nitrogen begin to assimilate into biological systems? _____________________ ____________________________________________________________________
7. What is the atmospheric event that can release Nitrogen from N2 to form a bioavailable form of nitrogen? _______________________ What new and usable form of nitrogen is generated when this is mixed with rain? _____________________________________
Beverly Science – Water Cycle
1. How much of the earth’s surface is covered in water? ____________________________
2. Why is so much of this water not fit for consumption by living organisms? _____________ ____________________________________________________________________
3. What are the two ways that water changes from a liquid into a gas and rises into the atmosphere? __________________________ and ____________________________
4. What is the evaporation of water from plants called? ______________________ How does this water vapor get out of the plant? ___________________________________
5. Which stage of the water cycle is defined as:
a. The changing of liquid water to vapor? __________________________________
b. The changing of water vapor to liquid? __________________________________
c. The return of atmospheric water to the earth - ___________________________
d. The movement of water through plants and its release into the atmosphere - ________________________
6. What role do clouds play in the water cycle? ________________________________
7. How does precipitation occur? ___________________________________________
Biogeochemical Cycles - Video notetaking
Beverly Science – Nitrogen Cycle
1. What percent of the atmosphere consists of nitrogen gas? _______________________
2. Why can’t organisms use the nitrogen that is found in the atmosphere? ______________
____________________________________________________________________
3. Name the vitally important organic macromolecules in which nitrogen is needed. ______________________________ and _________________________________
4. Which types of organisms perform nitrogen fixation, nitrification, ammonification, and denitrification? ______________________________________________________
5. How is denitrification different from nitrogen fixation, nitrification, or ammonification? ____________________________________________________________________
____________________________________________________________________
6. What does the word assimilation mean? ________________________________ At what point does nitrogen begin to assimilate into biological systems? _____________________ ____________________________________________________________________
7. What is the atmospheric event that can release Nitrogen from N2 to form a bioavailable form of nitrogen? _______________________ What new and usable form of nitrogen is generated when this is mixed with rain? _____________________________________
Beverly Science – Water Cycle
1. How much of the earth’s surface is covered in water? ____________________________
2. Why is so much of this water not fit for consumption by living organisms? _____________ ____________________________________________________________________
3. What are the two ways that water changes from a liquid into a gas and rises into the atmosphere? __________________________ and ____________________________
4. What is the evaporation of water from plants called? ______________________ How does this water vapor get out of the plant? ___________________________________
5. Which stage of the water cycle is defined as:
a. The changing of liquid water to vapor? __________________________________
b. The changing of water vapor to liquid? __________________________________
c. The return of atmospheric water to the earth - ___________________________
d. The movement of water through plants and its release into the atmosphere - transpiration
6. What role do clouds play in the water cycle? ________________________________
7. How does precipitation occur? ___________________________________________
Biogeochemical Cycles - Video notetaking Name ____________________________
Date __________________ Block ______
Beverly Science – Nitrogen Cycle
1. What percent of the atmosphere consists of nitrogen gas? _______________________
2. Why can’t organisms use the nitrogen that is found in the atmosphere? ______________
____________________________________________________________________
3. Name the vitally important organic macromolecules in which nitrogen is needed. ______________________________ and _________________________________
4. Which types of organisms perform nitrogen fixation, nitrification, ammonification, and denitrification? ______________________________________________________
5. How is denitrification different from nitrogen fixation, nitrification, or ammonification? ____________________________________________________________________
____________________________________________________________________
6. What does the word assimilation mean? ________________________________ At what point does nitrogen begin to assimilate into biological systems? _____________________ ____________________________________________________________________
7. What is the atmospheric event that can release Nitrogen from N2 to form a bioavailable form of nitrogen? _______________________ What new and usable form of nitrogen is generated when this is mixed with rain? _____________________________________
Beverly Science – Water Cycle
1. How much of the earth’s surface is covered in water? ____________________________
2. Why is so much of this water not fit for consumption by living organisms? _____________ ____________________________________________________________________
3. What are the two ways that water changes from a liquid into a gas and rises into the atmosphere? __________________________ and ____________________________
4. What is the evaporation of water from plants called? ______________________ How does this water vapor get out of the plant? ___________________________________
5. Which stage of the water cycle is defined as:
a. The changing of liquid water to vapor? __________________________________
b. The changing of water vapor to liquid? __________________________________
c. The return of atmospheric water to the earth - ___________________________
Answer please
Beverly Science – Nitrogen Cycle
1. What percent of the atmosphere consists of nitrogen gas? Approximately 78%.
2. Why can’t organisms use the nitrogen that is found in the atmosphere? Organisms cannot use atmospheric nitrogen (N2) directly because it is in a form that they cannot metabolize.
3. Name the vitally important organic macromolecules in which nitrogen is needed. Proteins and nucleic acids (DNA and RNA).
4. Which types of organisms perform nitrogen fixation, nitrification, ammonification, and denitrification? Nitrogen fixation is performed by nitrogen-fixing bacteria and some cyanobacteria. Nitrification is carried out by nitrifying bacteria. Ammonification is done by decomposer bacteria and fungi. Denitrification is performed by denitrifying bacteria.
5. How is denitrification different from nitrogen fixation, nitrification, or ammonification? Denitrification is the process in which nitrate (NO3-) is converted back into nitrogen gas (N2) and released back into the atmosphere. Nitrogen fixation, nitrification, and ammonification involve the conversion of atmospheric nitrogen into a form that can be used by organisms or the breakdown of organic nitrogen compounds into ammonium (NH4+).
6. What does the word assimilation mean? Assimilation refers to the incorporation of nitrogen into organic molecules by organisms. Nitrogen begins to assimilate into biological systems when it is taken up by plants or consumed by animals.
7. What is the atmospheric event that can release Nitrogen from N2 to form a bioavailable form of nitrogen? Lightning. When lightning occurs, it provides enough energy to break the strong triple bond between nitrogen atoms in the atmosphere, forming nitrogen oxides (NOx). When mixed with rain, these nitrogen oxides form nitrate ions (NO3-), which can be taken up and used by plants.
Beverly Science – Water Cycle
1. How much of the earth’s surface is covered in water? Approximately 71% of the earth's surface is covered in water.
2. Why is so much of this water not fit for consumption by living organisms? Much of the water on Earth is in the form of saltwater in the oceans, which is not suitable for consumption by most organisms due to its high salt content.
3. What are the two ways that water changes from a liquid into a gas and rises into the atmosphere? The two ways are evaporation and transpiration.
4. What is the evaporation of water from plants called? Transpiration. This water vapor gets out of the plant through small openings in the leaves called stomata.
5. Which stage of the water cycle is defined as:
a. The changing of liquid water to vapor? Evaporation.
b. The changing of water vapor to liquid? Condensation.
c. The return of atmospheric water to the earth - Precipitation.
6. What role do clouds play in the water cycle? Clouds are formed through condensation, when water vapor in the atmosphere cools and becomes liquid or solid droplets. They play a crucial role in the water cycle as they are responsible for the formation of precipitation.
7. How does precipitation occur? Precipitation occurs when water droplets or ice crystals in the clouds combine and become too heavy to stay suspended in the air. They then fall to the Earth's surface as rain, snow, sleet, or hail.
Biogeochemical Cycles - Video notetaking Name ____________________________
Date __________________ Block ______
Beverly Science – Nitrogen Cycle
1. What percent of the atmosphere consists of nitrogen gas? __78%________
2. Why can’t organisms use the nitrogen that is found in the atmosphere? _Organisms cannot use nitrogen found in the atmosphere because it is in the form of nitrogen gas (N2), which is chemically inert and cannot be readily used by most organisms._____
3. Name the vitally important organic macromolecules in which nitrogen is needed. _Proteins____ and ___nucleic acids (DNA & RNA)__________
4. Which types of organisms perform nitrogen fixation, nitrification, ammonification, and denitrification? _Nitrogen fixation is performed by certain bacteria and cyanobacteria, nitrification is performed by nitrifying bacteria, ammonification is performed by decomposers such as bacteria and fungi, and denitrification is performed by denitrifying bacteria.____
5. How is denitrification different from nitrogen fixation, nitrification, or ammonification? _Denitrification is the process in which nitrates (NO3-) are converted back into nitrogen gas (N2), thus, completing the nitrogen cycle. On the other hand, nitrogen fixation is the process of converting atmospheric nitrogen gas (N2) into usable forms such as ammonia (NH3) or nitrate (NO3-), nitrification is the process of converting ammonia (NH3) into nitrate (NO3-), and ammonification is the process of decomposing organic nitrogen into ammonia (NH3). __________
6. What does the word assimilation mean? _Assimilation refers to the process in which plants and animals take up nitrogen from their environment and incorporate it into organic molecules. Nitrogen begins to assimilate into biological systems when it is absorbed by plants and used to build proteins, nucleic acids, and other organic molecules._________
7. What is the atmospheric event that can release Nitrogen from N2 to form a bioavailable form of nitrogen? _Lightning______ What new and usable form of nitrogen is generated when this is mixed with rain? _Nitric acid (HNO3)___
Beverly Science – Water Cycle
1. How much of the earth’s surface is covered in water? __71%________
2. Why is so much of this water not fit for consumption by living organisms? _Much of this water is not fit for consumption by living organisms because it is saline (in the form of seawater) or contained within glaciers and polar ice caps. Additionally, some water may be polluted or contaminated with harmful substances._______
3. What are the two ways that water changes from a liquid into a gas and rises into the atmosphere? _The two ways that water changes from a liquid into a gas and rises into the atmosphere are evaporation and transpiration.________
4. What is the evaporation of water from plants called? _Transpiration______ How does this water vapor get out of the plant? _Water vapor gets out of the plant through small openings in the leaves called stomata._______
5. Which stage of the water cycle is defined as:
a. The changing of liquid water to vapor? _Evaporation________
b. The changing of water vapor to liquid? _Condensation_______
c. The return of atmospheric water to the earth - _Precipitation_______
Biogeochemical Cycles - Video notetaking Name ____________________________
Date __________________ Block ______
Beverly Science – Nitrogen Cycle
1. To find out what percent of the atmosphere consists of nitrogen gas, you can research this information by referring to credible sources. One reliable source you can use is scientific journals or textbooks. Another option is to search for websites run by reputable scientific institutions or organizations that provide information on the composition of the Earth's atmosphere.
2. To understand why organisms can't use the nitrogen found in the atmosphere, you can refer to scientific literature that explains the biochemical processes involved. This information can be found in textbooks or scientific articles that cover the topic of the nitrogen cycle in detail. You can also search for online resources provided by scientific institutions and organizations that explain the concept in a more accessible way.
3. In order to identify the vitally important organic macromolecules in which nitrogen is needed, you can refer to scientific literature that discusses the role of nitrogen in organisms. This information can be found in biochemistry textbooks or scientific articles that focus on the biochemistry of living organisms.
4. To determine which types of organisms perform nitrogen fixation, nitrification, ammonification, and denitrification, you can refer to scientific literature that discusses the nitrogen cycle and its processes. This information can be found in ecology textbooks or scientific articles that specifically address the nitrogen cycle and its involvement in different organisms.
5. To understand how denitrification is different from nitrogen fixation, nitrification, or ammonification, you can refer to scientific literature that explains the different steps and processes involved in the nitrogen cycle. This information can be found in environmental science textbooks or scientific articles that cover the nitrogen cycle in detail.
6. To understand the concept of assimilation and at what point nitrogen begins to assimilate into biological systems, you can refer to scientific literature that explains the process of nitrogen assimilation. This information can be found in biology or ecology textbooks or scientific articles that focus on nitrogen metabolism in organisms.
7. In order to determine the atmospheric event that can release nitrogen from N2 to form a bioavailable form of nitrogen, you can refer to scientific literature that discusses the nitrogen cycle and its various stages. This information can be found in environmental science textbooks or scientific articles that specifically address the nitrogen cycle and its transformations.