LIFE ON EARTH
BIOELEMENTS AND BIOMOLECULES
THE CELL
CELL TYPES
VITAL FUNCTIONS
100
What is the name of the part of the Earth that contains life?
Biosphere
100
Why are some elements called bioelements?
Because they are present in living things.
100
Which are the three basic components of cells?
Plasma membrane, Cytoplasm and Genetic material.
100
What types of eukaryotic cells are there?
Plant cells and Animal cells
100
What is the difference between living and non-living things?
Living things perform the three vital functions.
200
What is the average temperature on the Earth's surface?
15 ºC
200
This is the most abundant biomolecule in living things
Water
200
How are living beings classified depending on their cell organization?
Unicellular and multicellular.
200
Which is the only organelle present in prokaryotic cells?
Ribosomes
200
What is the difference between autotrophic and heterotrophic nutrition?
Autotrophic organisms produce their own organic substances and heterotrophic organisms don't.
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300
What would happen if the Earth was closer to the Sun?
Temperatures would be hotter and no life could develop.
300
Can we find proteins in a rock sample?
No, proteins are organic biomolecules (only present in living beings)
300
All living beings are made up of cells. True or False?
True
300
What are the three specific structures of plant cells?
Plant cell wall, Vacuole and Chloroplasts
300
What is the relationship between organisms that perform autotrophic and heterotrophic nutrition?
Heterotrophic organisms feed on autotrophic organisms.
400
Where does the oxygen in the atmosphere come from?
Photosynthesis
400
This biomolecule is responsible for controlling the information in cells.
Nucleic acids
400
What is the function of the plasma membrane?
Surrounds and protects the cell, allowing substance exchange.
400
What is the main difference between prokaryotic and eukaryotic cells?
Prokaryotic cells have DNA floating in the cytoplasm and Eukaryotic cells have a nucleus.
400
What two types of reproduction do you know, and how do they differ?
Asexual reproduction (1 organism, offspring identical) and Sexual reproduction (2 organisms, offspring has mixed characteristics).
500
Why is it important that the Earth has a very large mass?
To keep the Atmosphere due to gravity.
500
Say three of the most common elements in living things.
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus and Sulphur.
500
Can a prokaryotic organism be multicellular?
No, bacteria are always unicellular
500
Name five organelles common to eukaryotic cells
Endoplasmic reticulum, Golgi apparatus, Mitochondria, Ribosomes, Nucleus, Cytoplasm, Plasma membrane…
500
What is the interaction function used for? Give an example of where it is used
Interaction allows living beings to detect environmental changes and react to them.
other examples:
