Living Things
Growth, respiration, irritability (or sensitivity), movement, nutrition, excretion, and reproduction.
What are the seven (7) charateristics of living things?
The basic units (or building blocks) of life.
What are cells?
The organelles chloroplast and cell wall.
What is found in plant cells but not in animal cells.
An organism which produces its own food.
What is a producer?
The process in which carbon atoms travel from the atmosphere to the earth and back.
What is the carbon cycle?
The removal of metabolic waste products from the body.
What is excretion?
It hijacks the host's cells and causes them to make more copies of itself.
How do viruses reproduce?
The clear jelly-like substance enclosed by the cell membrane.
What is the cytoplasm?
They eat only plants.
What do herbivores eat?
or
What do primary consumers eat?
The process which ensures that nitrogen is in a form that plants can use safely.
What is the nitrogen fixation?
It ensures the continuation of a species
Why is reproduction important?
Because they cannot reproduce without an infected host.
Why are viruses not considered to be 'living' ?
Tiny round organelles which make protein and are often attached to the endoplasmic reticulum.
What are ribosomes?
A carnivore that eats other carnivores.
What is a tertiary consumer?
The process by which the plant absorbs nitrogen compounds
What is assimilation?
The ability of an organisms to detect changes in its environment.
What is irritability?
or
What is sensitivity?
Eukaryotic and prokaryotic cells.
What are the two main types of cells?
The mitochondrion, because it produces energy.
Which organelle is also called the 'powerhouse' of the cell?
A combination of more than one food chain.
What is a food web?
Approximately 78% nitrogen, 21% oxygen and less than 1% of other gases.
What is the composition of the air we breathe?
A chemical reaction within cells to release energy.
What is respiration?
Obtaining food from dead and decaying organisms.
What is saprophytic nutrition?
In plant cells they are very large but in animal cells are much smaller.
What is the difference between the vacuoles in plant and animal cells?
Only 10% of the energy.
How much energy is transferred to the next trophic level?
6CO2 + 6H2O = C6H12O6 + 6O2
carbon dioxide + water = sugar + oxygen
What is the chemical equation for photosynthesis?