Chapter 1 (Our Planet)
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The part of the Earth formed of oceans, seas, rivers, lakes, and other bodies and currents of water.
Hydrosphere
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Substances that are present in living beings and non-living matter, for example, water and mineral salts.
Inorganic Substances
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A type of cell that lacks a nucleus and in which the genetic material exists freely in the cytoplasm.
Prokaryotic Cell
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Organic and inorganic substances that living beings eat and that perform a specific function
Nutrients
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The science of classifying living beings.
Taxonomy
True or False:
Earth is the only living planet in our Solar System that contains living beings.
True
True or False:
Liquid water is an essential component for living beings. In fact, 90% of living matter is made up of liquid water.
False
Liquid water is an essential component for living beings. In fact, 70% of living matter is made up of liquid water.
True or False:
Prokaryotic cells do not have a cell wall.
True
True or False:
All living beings take in oxygen and expel carbon dioxide in a process we call reproduction.
False
All living beings take in oxygen and expel carbon dioxide in a process we call respiration.
True or False:
The broadest taxon is called a species.
The broadest taxon is called a kingdom.
Finish the sentence:
The Earth is divided into four layers or 'spheres' that constantly interact with each other: the ____, the ____, the ____ and the ____ .
The Earth is divided into four layers or 'spheres' that constantly interact with each other: the biosphere, the atmosphere, the hydrosphere, and the geosphere.
Finish the sentence:
Carbohydrates are a type of biomolecule that provides cells with ___.
Carbohydrates are a type of biomolecule that provides cells with energy.
Finish the sentence:
____ are the smallest kind of cell.
Bacteria are the smallest kind of cell.
Finish the sentence:
Substances pass in and out of unicellular organisms through the ___ ___.
Substances pass in and out of unicellular organisms through the plasma membrane.
Finish the sentence:
There are 7 different taxa, namely ___, ___, ___, ___, ___, ___, and ___.
There are 7 different taxa, namely kingdom, phylum, class, order, family, genus, and species.
What Galaxy do we live in?
We live in the Milky Way Galaxy!
What is the main component of all living beings?
The main component of all living beings is the cell.
What units are cells measured in?
Cells are primarily measured in micrometers (µm).
What is the process by which living beings process the information from receptors and decide how to respond?
Coordination
What are the 5 different kingdoms?
The five kingdoms are Monera, Protista, Fungi, Plantae, and Animalia.
What does the combining form "bio-" mean?
Life
Name the three things that all living beings have in common...
3. They perform three vital functions.
All cells are made up of what fundamental components?
Plasma membrane, cytoplasm, genetic material, and organelles.
Multicellular organisms are almost always what type of cells?
Eukaryotic cells