Life
What are the four ways we define life?
They have to have cells. They have to grow and develop. They have to use energy. They have to reproduce.
What is the importance of the carbon?
Carbon is one of the most common elements in living things. Chains of carbon molecules form the backbone of many molecules including carbohydrates, proteins, and lipids.
What is a macromolecule?
They are large organic molecules. They are composed of smaller organic molecules linked together.
What is biodiversity?
Biodiversity is the total variety of organisms in the biosphere.
What are enzymes?
Enzymes increase reaction rates with less energy. They help reactants interact.
What is an ecosystem?
An ecosystem is all living things (biotic) and non-living things (abiotic) in an environment.
In what ways are carbon released to the atmosphere?
Organisms exhale CO2. Carbon is released when we burn fossil fuels. Carbon is released when organisms die and decay. When cells use glucose for energy, CO2 is released.
What are the four main types of macromolecules?
They are lipids (fats), carbohydrates, proteins, and nucleic acids.
What is predation?
It is when one species consumes another for energy.
What is trypsin?
Trypsin breaks down proteins in the small intestine.
What are the four main consumers and what do they consume?
Omnivores, carnivores, herbivores, and decomposers. Carnivores consume other animals. Omnivores consume both producers and consumers. Herbivores consume plants, and decomposers break down dead organisms and recycle nutrients.
What is the importance of Nitrogen?
Nitrogen is essential for biological molecules. It is essential for protein, nucleic acids, DNA, and RNA.
What role does carbon have for macromolecules?
Carbon atoms can form a variety of large and complex molecules.
What is symbiosis?
It is when two different organisms interact. They are mostly categorized into parasitism, mutualism, and commensalism.
What are the conditions for enzymes?
The right conditions depend on the temperature, ionic conditions, and ptt.
What is a food chain?
A food chain is a diagram showing energy transfer between organisms.
What are the steps in the nitrogen cycle?
1. Bacteria converts nitrogen into a usable form
2. Once nitrogen is in a usable form, it is taken up by plants and assimilated into protein.
3. An animal eats a plant and the nitrogen becomes part of the animals protein
4. The animal dies/decomposes and the nitrogen returns to soil
What is organic macromolecules?
They are chemical compounds that contain carbon.
What is it when one organism benefits and the other is harmed?
Parasitism
What is an example of conditions for enzymes?
Pepsin. Pepsin breaks down proteins in the stomach.
What is an organizational hierarchy?
It is an organism. It is an individual that carries out life processes.
What form is carbon in the atmosphere?
It is in the form of CO2
What different sugars are there in macromolecules?
Table sugar (sucrose)
Fruit sugar (fructose)
Sugar in milk (lactose)
Starches (pasta, rice, potatoes)
What are the different types of relationships among organisms?
There are six different relationships. They are predation, true predation, grazing, parasitism, mutualism, and commensalism.
When do enzymes lose shape? And what is it called?
It is called denatures. Enzymes can lose shape at high temperatures.