Phosphorus cycle
Quiz by Harini Harini
Feel free to use or edit a copy
includes Teacher and Student dashboards
Measure skillsfrom any curriculum
Measure skills
from any curriculum
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
With a free account, teachers can
- edit the questions
- save a copy for later
- start a class game
- automatically assign follow-up activities based on students’ scores
- assign as homework
- share a link with colleagues
- print as a bubble sheet
6 questions
Show answers
- Q1What is the primary source of phosphorus for plants?WaterSoil mineralsAirSunlight30s
- Q2What is the role of phosphate in the phosphorus cycle?It is broken down by bacteria into soluble formsIt is released into the air through volcanic activityIt is only present in rocks and mineralsIt is taken up by plants for use in DNA and other biological molecules30s
- Q3What role do bacteria play in the phosphorus cycle?They absorb excess phosphate from the soil and store it in their cellsThey convert inorganic phosphate into organic matter for plantsThey release phosphorus into the air through respirationThey break down organic matter and release inorganic phosphate into the soil30s
- Q4What can happen to excess phosphorus in aquatic ecosystems?It can have no effect on the ecosystemIt can decrease the pH of waterIt can lead to eutrophication and harmful algal bloomsIt can convert into toxic heavy metals30s
- Q5What is the main reservoir of phosphorus on Earth?The atmosphereRocks and mineralsOceans and marine sedimentsLiving organisms30s
- Q6What is the process by which plants take up phosphorus?DiffusionOsmosisActive transportFiltration30s