B2.1 Cells, Tissues and Organs

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  • Created by: Hope
  • Created on: 17-04-14 13:05
What do both animals and plant cells contain?
Nucleus, Cytoplasm, Cell membrane, Mitochondria and Ribosomes
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What do ONLY plant cells contain?
Cell walls, chloroplasts, Permenant Vacuole
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What does the nucleus contain and what does it do?
Contains genetic material which controls the activity of the celll
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What happens in the Cytoplasm and what is it controlled by?
Most chemical processes take place here and it is controlled by enzymes
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What does the cell membrane do?
Controls the movement of substances into and out of the cell
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What happens in the mitochondria?
Most energy is released by respiration here
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What happens in the ribosomes?
Protien systhesis happens here
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What does a Cell Wall do?
Strengthen the cell
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What do chloroplasts contain and what does it do?
Contains chlorophyll which absorbs light energy for photosynthesis
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What is the permenant vacuole filled with and what does this help to do?
Cell Sap, to help keep the cell turgid.
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What does a bacterium cell consist of?
Cytoplasm and a membrane surrounded by a cell wall
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What is different about a bacterium cell?
The genetic matrerial is not in a distinct nucleus
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What does a yeast cell consist of?
Nucleus, cytoplasm and a membrane surrounded by a cell wall
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What are both Bacteria and Yeast cells?
Single-celled organsisms
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What is Diffusion?
The spreading out of particles from a region where they are of a higher concentration to region with a lower concentration
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Name one example of diffusion in the body....
In the lungs particles move oxygen from the alvelolar air space to the blood circulating around the lungs
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Define: Differentiation
The process by which a cell becomes a specialised type of cell
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Name the three types of tissues
Muscular, Glandular and Epithelial
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What does the Muscular tissue do?
Contracts, bringing about movement
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What does the Glandular tissue do?
Produces substances such as enzymes and hormones
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What does the Epithelial tissue do?
Covers some parts of the body
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In what order does organs, cells, organ systems and tissues go?
Cells, Tissues, Organs, Organ Systems
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In the stomach what does the muscular tissue do?
Churn the fod and other contents of the stomach
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In the stomach what does the glandular tissue do?
Produce digestive juices such as acids and enzymes
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In the stomach what does the Epithielial issue do?
Cover the inner and outer surfaces of the stomach
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What are the four main organ systems in the body?
Nervous, respitory, reproductive and digestive
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What parts of the body are involved in the digestive system and what do they do?
Glands- produce digestive juices, Stomach and small intestine - where digestion occurs, Liver - produces bile, Small instestine - digest food, Big intestine - Produces faeces
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What are the three types of tissues in a plant and what are their purposes?
Epidermal tissues which cover the plant, Mesophyll which carries out photosynthesis and Xylem and pholem which transport substances around the plant
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What organs does a plant contain?
Stem, root and leaves
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How are plants adapted to absorb sunlight for photosynthesis?
Large surface area - absorb more, thin - short distance for carbon dioxide to diffuse and chloryophyll - to absorb more sunlight
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Other cards in this set

Card 2

Front

What do ONLY plant cells contain?

Back

Cell walls, chloroplasts, Permenant Vacuole

Card 3

Front

What does the nucleus contain and what does it do?

Back

Preview of the front of card 3

Card 4

Front

What happens in the Cytoplasm and what is it controlled by?

Back

Preview of the front of card 4

Card 5

Front

What does the cell membrane do?

Back

Preview of the front of card 5
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