Biology 1

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  • Created by: Issy.edge
  • Created on: 17-11-16 09:40
What labels are included in the diagram for a nephron? (Hint: there are 6)
Bowman's Capsule, Glomerulus, Proximal Convoluted Tubule (PCT), loop of Henle, Distal Convoluted Tubule (DCT) and Collecting duct.
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What are the word and chemical equations for aerobic respiration?
Glucose + Oxygen -> Carbon Dioxide + Water (C6 H12 O6 + O2 -> C O2 + H2 O)
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What is the difference between aerobic and anaerobic respiration?
Aerobic ~ A type of respiration which uses Oxygen. Anaerobic ~ A type of respiration in the absence of Oxygen.
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What is Osmoregulation?
The body controlling the amount of water in the blood.
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What is the word equation for photosynthesis?
Carbon Dioxide + Water -> Glucose + Oxygen
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Where does photosynthesis take place?
In the chlorophyll which is found in chloroplast inside the leaf of a plant.
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What are the characteristics of all living organisms? (Hint: MRS GREN)
Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion and Nutrition.
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What are the labels of a plant cell?
Nucleus, Cytoplasm, Cell Membrane, Mitochondria, Ribosomes, Cell wall, Chloroplasts and Permanent Vacuole.
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What are the labels of an animal cell?
Nucleus, Cytoplasm, Cell membrane, Mitochondria and Ribosomes.
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What are the main parts of the digestive system? (Hint : there are 11)
Mouth, Salivary glands, Oesophagus, Pancreas, Liver, Gall bladder, Small intestine, Large intestine, Rectum and Anus.
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Most cells are .....1..... to carry out a particular .....2..... so their structures can vary. One example of this in humans is a ...3... .....4..... cell. These are specialised for carrying .....5..... .
1. specialised 2. function 3. red 4. blood 5. Oxygen
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What are the 6 groups of organisms?
Plants, Animals, Fungi, Protoctists, Viruses and Bacteria
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What is a catalyst?
A substance which increases the speed of a reaction without being changed or used up in a reaction.
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What are enzymes?
Enzymes are used as catalysts to speed up useful reactions in our bodies called metabolic reactions. They are all proteins and the enzymes are specific shapes depending on what substrate they need to break down.
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What happens to enzymes when they get too hot?
The enzymes break down and denature when they get too hot which means they lose their shape and therefore no longer work.
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What is diffusion and how does it work?
The gradual movement of particles from places where there are lost of them to where there are fewer. It happens in both gases and liquids and the movement is random.
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What three processes allow substances to move in and out of cells?
Diffusion, Osmosis and Active transport
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What is osmosis?
The movement of water molecules across a partially permeable membrane from a region of higher water concentration to a region of lower water concentration.
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What is active transport?
The movement of particles against a concentration gradient (from an area of low concentration to an area of high concentration) using energy released during respiration.
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What are the three main factors that affect the movement of substances?
Surface area to volume ratio, temperature and concentration gradient.
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How do you test for Glucose?
Add Benedict's reagent to a sample and heat it. The colour changes from blue to green/yellow/orange/brick red depending on the concentration of the Glucose in the sample.
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What are the 7 factors of a balanced diet?
Carbohydrates, Lipids (Fats), Proteins, Vitamins (A,C and D), Mineral ions, Water and Dietary fibre.
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What is peristalsis?
The squeezing action which is used in the gut to move food balls (boluses) through the gut.
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What are the five main stages of digestion?
Ingestion, Digestion, Absorption, Assimilation and Egestion.
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What are villi?
Villi help to absorb food in the small intestine. they increase the surface area of the intestine and they have a very good blood supply so absorption takes place faster.
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What are 3 important conditions for photosynthesis?
The temperature has to be just right, not enough light slows down the rate of photosynthesis and too little Carbon Dioxide also slows it down.
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How do you test a leaf for starch?
Place the leaf in boiling water then put it in a water bath with ethanol. Finally rinse the leaf in cold water and add a few drops of iodine solution. if starch is present the leaf will turn blue-black.
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What is the starch test used to show?
Used to show whether photosynthesis is taking place inside a leaf.
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What 3 mineral ions do plants need for growth?
Nitrates, Phosphates and Potassium. (also magnesium is needed in small amounts)
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Other cards in this set

Card 2

Front

What are the word and chemical equations for aerobic respiration?

Back

Glucose + Oxygen -> Carbon Dioxide + Water (C6 H12 O6 + O2 -> C O2 + H2 O)

Card 3

Front

What is the difference between aerobic and anaerobic respiration?

Back

Preview of the front of card 3

Card 4

Front

What is Osmoregulation?

Back

Preview of the front of card 4

Card 5

Front

What is the word equation for photosynthesis?

Back

Preview of the front of card 5
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