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11 Cards in this Set
- Front
- Back
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Organic molecules what is the definition? |
Lifes building blocks, formed from chemical reactions between inorganic molecules |
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What do cells synthesise |
Different macromolecules that are made up of organic building blocks eg proteins are made of amino acids |
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What do cells use dna for |
Dna has the genetic information to make proteins. The dna is replicated and passed onto daughter cells passing on information such as characteristics |
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How has the diversity of species arisen |
Natural selection, a process that favours individuals with characteristics that can increase chance of survival, reproduction so that gene alles are passed on through generations. Evolution is the change in frequency of inherited characteristics over time. |
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Why is water essential for life |
Beacuse of ita chemical properties as a solvent. Phospholipids form bilayers in aquesous environments which helps form cell membranes. |
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What are living organisms made up of |
One or more cells each bounded by the cell membranes |
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How do organisms obtain energy |
From the environment, tge catabolism of molecules or light energy for photosynthesis |
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How do living organisms grow and reproduce |
Cell division |
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How can you tell if a cell is prokaryote |
Simple structure and lack of internal membrane organelles such as mitochondria |
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How can you tell if a cell is a eukaryote |
It contains membrane bound organelles such as the nucleus |
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How do complex multicellular organisms arise |
By consisting of many cell types developed from a single cell theough a process of cell division and differentiation |
