Photosynthesis - 1
The organelle where light is captured in a plant cell.
Chloroplasts.
What are the organelles that perform cellular respiration in ALL plant and animal cells.
mitochondria
An increase in carbon dioxide in the atmosphere would increase the amount of this process happening.
Photosynthesis
How many stages does photosynthesis consist of? Name them
Two: light and dark reactions
In your opinion, what was the first organism on our planet?
Bacteria
1. Water enters the plants through
2. CO2 enters the leaf through
1. Roots of the plant
2. Stoma (stomata)
The energy currency of the cell
ATP
What is the effect of planting more trees in an area?
Give the full answer
Increased trees means that there is more photosynthesis occurring. More photosynthesis means there is more food for animals and more oxygen for all living things.
Why do the leaves turn yellow, red, orange in Fall?
The amount of chlorophyll decreases, its place take carotenoids.
Place in order from the lowest level of bio-organization to the highest: organ, organelle, cell, organism, organ system, molecule, atom, tissue.
Write on the board
atom -> molecule -> organelle -> cell -> tissue -> organ -> organ system -> organism
Why is photosynthesis so important?
Photosynthesis converts sun energy into food (sugar), making energy available for plants and animals. It also makes Oxygen, which we need to breathe.
What are 3 stages of Cellular Respiration?
Glycolysis -> Krebs Cycle -> Electron Transport Chain
This process will come to a halt if California goes into a major drought this summer
Photosynthesis
Where does light-dependent reaction take place?
What is the product of it?
In thylakoid of chloroplast
Oxygen
How does the closing of the stomata affect photosynthesis?
There will be no access for CO2 which is one of the reactants of photosynthesis. The process will stop.
What are the pigments in plants and what is their function?
A molecule (chlorophyll, carotenoid) that captures sunlight, mostly red and blue wavelengths.
They give the color to leaves by reflecting green or orange wavelength, accordingly
What are the reactants and products of cellular respiration? Use words
Reactants: Glucose and Oxygen
Products: carbon dioxide, water, ATP-energy
The cycle made by .......and ....... keeps the amounts of carbon dioxide and oxygen fairly constant in the atmosphere
The cycle made by photosynthesis and cellular respiration
Where does light-independent reaction take place? What is the product of it?
In stroma of chloroplast.
Glucose
How will the meaning of the expression "cellular respiration"change if we remove the word "cellular" from it?
"Respiration" - means the work/job that the respiratory system performs with the help of lungs, bronchi, trachea, pharynx, larynx, and nose.
Give examples for 6 levels of bio-organization. Consider plants.
Oxygen, chlorophyll, chloroplast, mesophyll cell, stem/leaf/roots, tree
What is the reaction of cell respiration? Write it on the board
C6H12O6 + 6O2 -> 6CO2 + 6H2O + 36 ATP
Explain how the Law of Thermodynamics that states "Energy can not be crated or destroyed but it can be converted to another form" is applied in Biology
When we eat, energy that is stored in food is converted to chemical energy (ATP) and then to mechanical energy when we exercise.
What energy does the dark stage use?
ATP that was made during the light stage
Describe how the grey wolf population would be impacted by a volcanic eruption that released a dense ash cloud that blocked sunlight in a section of Yellowstone National Park.
1. No sunlight, no photosynthesis in plant leaves, no glucose for plants to survive, no oxygen to breath.
2. If plants don't survive, the grass-eating animals' population will decrease, which will leave the wolves without food.