8.1 Photosynthesis and the carbon cycle Flashcards
What process do plants use to make their own food?
Photosynthesis
What are the reactants for photosynthesis?
Water and carbon dioxide
What are the products for photosynthesis?
Glucose and oxygen
What is the green pigment in plants that absorbs sunlight?
Chlorophyll
Which part of a plant cell does photosynthesis take place in?
Chloroplasts
Write the word equation for photosynthesis
Water + Carbon Dioxide → Glucose + Oxygen
Where in the plant are most chloroplasts found?
Leaves
What are the holes on the bottom of the leaf called that allow gases to diffuse into and out of the leaf?
Stomata
How does water get from the roots to the leaves?
Through veins called xylem
Why do plants need magnesium?
To make chlrophyll
Why do plants need nitrogen
To convert carbohydrates to proteins
How do plants get carbon?
Through absorbing carbon dioxide for photosynthesis
How do decomposers get carbon?
Feeding on dead plants and animals
How do animals get carbon?
Feeding on plants
How does carbon dioxide get back into the air from plants, animals and decomposers?
Respiration
What is the word equation for respiration?
Glucose + Oxygen → Carbon Dioxide + Water
What are the three fossil fuels
Coal, oil and gas
How have fossil fuels been formed?
Dead plants and animals, get buried (lack of oxygen), heat and pressure over a long time
Name the two main greenhouse gases
Carbon dioxide and methane
What has increased carbon dioxide levels in the atmosphere caused?
Global warming
What is climate change
The change in the long term pattern of temperatures, wind and rainfall on Earth
What are the three main impacts of climate change
More extreme weather, less predictable rainfall, raising sea levels
