2031490
Description
Mind Map by Tom Johnson, updated more than 1 year ago
|
Created by Tom Johnson
almost 10 years ago
|
|
Biology: Plants
- Photosynthesis
- CO2 + H2O = C6H12O6 + O2
- Sunlight would be where the equals sign is,
and provides energy for the whole process
- CO2 diffuses into the leaf from the air
- Water is absorbed from the ground by the xylem
- Water is absorbed from the ground by the xylem
- Sunlight would be where the equals sign is,
and provides energy for the whole process
- Photosynthesis occurs inside chloroplasts in the leaves of a plant
- The chloroplasts are filled with chlorophyll
which is actually where photosynthesis occurs
- The chloroplasts are filled with chlorophyll
which is actually where photosynthesis occurs
- Rate of photosynthesis is affected by light intensity, CO2
volume and temperature. Amount of water available can
also affect the rate but this is often a limiting factor
- Limiting factors are things that prevent
photosynthesis happening any faster
- At night, the limiting factor is light
- In the winter, the limiting
factor is temperature
- At night, the limiting factor is light
- For example, you can continue increasing light intensity,
however the rate will stop increasing at a certain point because
then the temperature or CO2 volume needs to increase too
- Limiting factors are things that prevent
photosynthesis happening any faster
- CO2 + H2O = C6H12O6 + O2
- Water is taken through the plant
from the ground by the xylem
- The phloem is responsible for "translocation", the movement of
food and nutrients to all tissues and organs throughout the plant
- The phloem is responsible for "translocation", the movement of
food and nutrients to all tissues and organs throughout the plant
- Plants use glucose for multiple purposes
- Respiration
- Respiration releases energy which allows the plant to
convert the rest of the glucose into other useful substances
- Respiration releases energy which allows the plant to
convert the rest of the glucose into other useful substances
- Making Cell Walls
- Here glucose is converted into cellulose
which is used to make strong cell walls
- Here glucose is converted into cellulose
which is used to make strong cell walls
- Making Proteins
- Glucose is combined with nitrate ions to make
amino acids which are then made into proteins
- Glucose is combined with nitrate ions to make
amino acids which are then made into proteins
- To be stored in seeds
- Here glucose is turned into "lipids"
(fats and oils) to be stored in seeds
- Here glucose is turned into "lipids"
(fats and oils) to be stored in seeds
- To be stored as starch
- Starch is stored in the roots, stem, leaves and seeds as a glucose
reserve for when photosynthesis isn't happening (eg. the winter)
- Starch is stored in the roots, stem, leaves and seeds as a glucose
reserve for when photosynthesis isn't happening (eg. the winter)
- Respiration
- Guard cells are adapted to open and close the
"stomata" (pores) in a leaf. Their function is gas
exchange and controlling water loss in a leaf.
- When the plants has lots of water, the guard
cells go turgid which open the stomata so
gases can be exchanged for photosynthesis
- When the plant is lacking water, the guard cells become flaccid which causes
the stomata to close which prevents too much water vapour from evaporating
- Guard cells are sensitive to light and close the stomata at
night to save water without losing out on photosynthesis
- Guard cells are sensitive to light and close the stomata at
night to save water without losing out on photosynthesis
- When the plant is lacking water, the guard cells become flaccid which causes
the stomata to close which prevents too much water vapour from evaporating
- When the plants has lots of water, the guard
cells go turgid which open the stomata so
gases can be exchanged for photosynthesis
Want to create your own Mind Maps for free with GoConqr? Learn more.