Plants and Photosynthesis Flashcards
Plants make their own food (for energy) in a process called _________________
Photosynthesis
Photosynthesis helps keep:
* levels of oxygen ________
* levels of carbon dioxide _______
High, low
Where does photosynthesis takes place?
In the chloroplasts
Name the green chemical inside chloroplasts
Chlorophyll
What is the function of chlorophyll?
To absorb light
Write the word equation for photosynthesis
Carbon dioxide + water → glucose + oxygen
Name the 3 things needed for photosynthesis
CO2, Water, Light
What is absorbed by the roots? By which process is this absorbed into the roots?
Water, osmosis
Name the process by which minerals are absorbed into the roots?
Active transport
How is active transport different to osmosis?
Active transport- from low to high concentration
Osmosis- from high to low
What is pollination?
Pollination is the transfer of pollen from one
plant to another
Which group of organisms are involved in
pollination?
Insects
How else can pollen be transferred?
By insects or wind
Explain why pollination is important?
Our diet is made of plants
The animals we eat feed on plants.
State the 3 weather conditions that closes the stomata
Hot, dry, windy
Name the gases that diffuse through the spongy layer
Oxygen
Carbon dioxide
In which direction does carbon dioxide diffuse in plants?
Into the leaf
In which direction does oxygen diffuse in plants?
Out of the leaf
How is photosynthesis different to respiration?
Photosynthesis:
* produces glucose and oxygen
* uses carbon dioxide and water
Respiration:
* produces carbon dioxide and water
* uses glucose and oxygen
