Unit 4 - Photosynthesis, Cellular Respiration & Enzymes Flashcards
Chem is way better than Bio
What organelle is used in Photosynthesis?
Chloroplasts (Which contains the chemical for Photosynthesis, Chlorphyll)
Why do plant cells have cell walls, but animal cells don’t?
Plants don’t have bones, so they need another way of staying upright to reach the sunlight, which is what cell walls are used for
What chemical is used in Photosynthesis?
Chlorphyll
(Which is located inside the organelles, Chloroplasts)
What is the formula for Photosynthesis?
6 Water + 6 Carbon Dioxide —> 1 Glucose + 6 Oxygen
6 H2O + 6 CO2 —> C6H12O6 + 6 O2
Light energy is used to transform it
Where is the stomata located and why?
The stomata is located on the bottom of leaves to keep them in the shade and prevent sunlight from evaporating too much water
What controls when the stomata opens and closes?
2 guard cells on either side
What are the stomata used for?
Gas Exchange, the stomata open to collect carbon dioxide and oxygen, however risk losing water in the process
What is the cuticle?
A waxy, protective covering on the plants. They are hydrophobic to prevent water loss, and they keep out unwanted substances
When are the stomata open?
During the day due to photosynthesis, and they close during the night
What are the function of the roots?
- Anchor the plants in the ground
- Store food
- Collect Water and minerals (tiny root hairs absorb most of it)
What are transport tissues?
They appear as veins on the leaves, and are also in the roots and the stem. Vascular Tissue transports water, minerals and glucose throughout the plant. There are 2 types of Vascular tissue, Xylem and Phloem
What is the Xylem?
Xylem is a transport tissue in the plant which distributes water & dissolved minerals from roots to leaves. Nutrients only go upwards
What is the Phloem?
Phloem is a transport tissue in the plant which distributes sugars from photosynthetic cells in the leaves to living cells throughout the plant. This glucose goes both directions.
What energy is used in Photosynthesis?
Light Energy
(Abhinav somehow took 4 tries to figure this out)
What organelle is responsible for cellular respiration?
The Mitochondria
(is the powerhouse of the cell)