Flashcards in 2.2.1 Photosynthesis Deck (23)
What is a producer?
An organism that can make its own food e.g. plants and algae
Give 2 examples of producers.
By which process do plants produce their own food?
How are algae different to plants?
- The can be unicellular or multicellular
- They live underwater
- Algae do not have stems, roots or leaves.
How are plants different to algae?
- They are all multicellular
- They live mostly on land
- They have stems, roots and leaves
What is a consumer?
Organisms that have to eat other organisms to survive e.g. animals are consumers
What is the equation for photosynthesis?
Carbon dioxide + water + sunlight --> glucose + oxygen
Name the reactants of photosynthesis.
Carbon dioxide + water
Name the products of photosynthesis.
glucose + oxygen
Where does photosynthesis take place inside plant or algal cells?
Within the chloroplasts
What is the name of the green pigment found inside chloroplasts?
What does chlorophyll do?
Captures light energy inside the chloroplasts
Describe the journey of water through a plant.
- Water enters through the root hair cells of the roots.
- Water travels through tubes called xylem tubes.
- Water evapourates out of the leaves.
How do gases enter and exit a plant?
Through tiny holes in the underside of leaves called stomata.
Which gas enters leaves?
Which gas exits leaves?
Name the tubes that water travels through inside plants
Name the parts of a plant that contain chloroplasts.
Stem (small amount)
Why do roots not contain chloroplasts?
Because they are underground so cannot capture sunlight.
Plants store the glucose produced in photosynthesis as...
How can we test a leaf to see if it doing photosynthesis?
Use iodine on it to test for starch.
What colour does iodine change to if starch is present?
From orange to blue/black