B16 - Adaptations and Interdependance and B17 - Material Cycling Flashcards
What is the word equation for photosynthesis?
carbon dioxide + water –> glucose + oxygen
What is metabolism?
The sum of all chemical reactions in a cell or body
what 4 jobs does the liver preform?
- fighting off infections
- breaks down lactic acid
- neutralises toxins and alchol
- controls blood sugar
- helps clot the blood
What does a hepatic portal vein do?
carries blood containing digested food from the intestines to the liver
What does the hepatic artery do?
brings oxygenated blood to the liver
what is Abiotic?
- climate
- temperature
What is biotic?
- plants
- foods
- predators and prey
what do plants compete for?
- sunlight
- water and nutreints
- trees
- space/ tretirotry
What do animals compete for?
- food
- water
- territory
- mates
What are the benefits of the stomatta on the underside of the leaf
water dosent eveporate
What are the benefits of rolled up leaves
reduces waterloss through evaporation
What are the benefits of spine shaped leaves?
reduces waterloss as it reduces surface area
What are the benefits of a thicker waxy cuticule?
- filled with chlorphyll which reduces water loss as there is less surface area, less sunlight reduces concentration gradient
what is abundance?
how many living organisms there are
what is distrubution?
how the organisms are spread out
what is a food chain?
it shows the transfer the energy between organisms
- always start with producers
what is a herbivore?
an animal that only eats plants
what is a predator?
captures and eats other animals
what is a prey?
any animal that serves as a food source for other animals
what is a consumer?
organisms that feed on plants or other animals for energy
what is a primary consumer?
a group of organisms that are placed in the second trophic level
what is a producer?
can photosynthesise to produce glucose and is first in the food chain e.g algae and plants
What are 3 things linked to the carbon cycle?
- combustion
- respire
- photosynthesis
what is combustion?
the process of burning something at a high temperature
what is photosynthesis?
the process plants use sunlight, water and carbon dioxide to create oxygen and energy in glucose
the process by which plants and some other organisms convert light energy into chemical energy in the form of glucose
what is respiration?
chemical reaction to release energy
what is the equation for respiration?
oxygen + glucose –> carbon dioxide + water
what is the equation for combustion?
oxygen + fuel –> carbon dioxide + water
what are the stages of the water cycle?
- condenstion
- precipitation
- evaporation
- transpiration
describe the process of the water cycle
- Evaporation: Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapour or steam. The water vapour or steam leaves the river, lake or ocean and goes into the air.
- Condensation: water vapor changes it’s physical state from a vapor to a liquid. Water vapor condenses onto small airborne particles to form fog or clouds.
- Precipitation: The clouds get heavy and water falls back to the earth in the form of rain, hail, sleet or snow
- Collection: The fallen precipitation is then “collected” in bodies of water such as rivers, lakes and oceans – from where it will eventually evaporate back into the air, beginning the cycle all over again
