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53 Cards in this Set
- Front
- Back
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How do you find magnification? |
Image size divided by real size |
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What is differentiation |
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Why are sperm cells specialised for reproduction? |
●Long tail and streamlined head to help swim to the egg. ●lot of mitochondria to provide the cell with energy. |
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Why are nerve cells specialised for rapid signalling? |
Long to cover more distance and have branched connections on the end to connect with other nerve cells to format a network around the body. |
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Why are muscle cells specialised for contraction? |
Lots of mitochondria to generate energy and are long so they have space to contract. |
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Why are root hair cells specialised for absorbing water and minerals? |
Hairs that stick out into the soil give it a large surface area for absorbing water and minerals. |
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What happens in mitosis |
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What is diffusion |
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What is osmosis |
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Equations for electricity |
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Equations for force and motion |
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Equations for energy |
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What does a group of cells make |
Tissues |
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What does a group of tissues make |
Organs |
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What does a group of organs make. |
Organ systems |
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Starch is broken down to maltose by which enzyme? |
Amylase enzyme |
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Proteins are broken down in to amino acids by which enzyme? |
Protease enzyme |
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Lipids are broken down in to glycerol and fatty acids by which enzyme? |
Lipase enzyme |
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What specialised cells produce amalayse |
Salivary glands |
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What cells produce all 3 enzyme(amylase,lipase,protease) |
Small intestine and pancreas |
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Which solution checks the presence of starch |
Iodine |
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What solution is used to check the presence of lipids? |
Sudan III |
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Label the 4 chambers of the heart |
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What arteries used for? |
Take blood away from the heart |
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What are capillaries is used for |
Exchange of material at the tissue |
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What are veins used for |
Carry blood to the heart |
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Why are arteries specialised to carry blood at high pressure? |
●Walls are strog and elastic ●thick walls contain thick layers of muscle to make them strong |
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Why are capillaries specialised to exchange material at the tissue |
Permeable walls so substances can diffuse in and out |
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Why are veins specialised to take blood to the the heart |
Valves to stop back flow and make the blood go in the correct direction |
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What does phloem transport |
Food |
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What does xylem transport |
Water |
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Wieght |
Mass × gravitational field strength |
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Force applied to spring |
Spring constant ×extension |
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Accelration |
Change in velocity ÷time taken |
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Momentum |
Mass × velocity |
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Gravitational potential energy |
Height ×mass × gravitational field strength |
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Power |
Work done ÷time |
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Effeciency |
Useful power output×total power output |
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Charge flow |
Current × time |
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Power |
Potential difference ×current |
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Energy transfered |
Power ×time |
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Density |
Mass÷volume |
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Work done |
Force ×distance |
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Kinetic |
0.5×mass×speed squared |
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Distance travelled |
Speed×time |
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Resultant force |
Mass×acceleration |
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Wavespeed |
Frequency × wavelength |
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Power |
Energy transfered ÷time |
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Potential difference |
Current×resistance |
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Effeciency |
Useful output energy transfer÷useful input energy transfer |
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Power |
Current squared×resistance |
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Energy transfered |
Charge flow×potential difference |
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Relative atomic mass |
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