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120 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Name all minerals plants need |
Nitrate Phosphate Potassium Magnesium |
Nitrate Phosphate Potassium Magnesium |
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Nitrate what is it used for and contains |
Used to make protein For cell growth Used to make amino acids Contains nitrogen and oxygen |
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Phosphate what is it used for and contains |
Respiration and growth Phosphorus Make DNA and cell membrane |
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Potassium contains and used for |
Respiration and photosynthesis Potassium to help enzymes |
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Magnesium for and to make |
Photosynthesis Make chlorophyll |
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Relate minerals deficiencies to the result of poor plant growth Nitrate |
Poor growth and yellow leaves |
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Relate minerals deficiencies to the result of poor plant growth Phosphate |
Poor root growth and discoloured leaves |
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Relate minerals deficiencies to the result of poor plant growth Potassium |
Poor flower and fruit growth and discoloured leaves |
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Relate minerals deficiencies to the result of poor plant growth Magnesium |
Yellow leaves |
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What is active transport |
Active transport moves substances from a low concentration to an high concentration against the concentration gradient across a cell membrane using energy from respiration |
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Minerals usually present in soil in what |
A low concentration |
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How do minerals go into plants |
In through root hair cells by active transport |
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What are the two vessels in plants |
Phloem Xylem |
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What is the function of xylem |
Does transpiration |
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What is the function of phloem |
Does translocation |
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What is transpiration |
The movement of water and minerals from the roots to the shoots and leaves |
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What is translocation |
Movement of food substances (sugars) up and down stems to growing tissues and storage tissues |
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Describe the xylem vessel |
Thick strengthens cellulose cell wall with a hollow lumen |
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Describe the phloem vessel |
Columns of living cells |
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Transpiration can be affected by |
Increase in light intensity Increase temperature Increase air movement Decrease in humidity |
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How can transpiration rate be increased |
Increase in temperature Increase in air movement Increase in light intensity Decrease in humidity |
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Transpiration provides plants with water for what |
Cooling Photosynthesis Support Movement of minerals |
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How is the structure of the leaf adapted to reduce excessive water loss |
Waxy cuticle Small number of stomata on upper surface |
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How is the cellular structure of a leaf adapted to stop excessive water loss |
Number position distribution and size of stomata Changes in guard cell turgidly |
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What three things effect the rate of decay |
Temperature Amount of oxygen Amount of water |
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What are detritivores ? |
Earthworms Woodlice and maggots that feed on dead and decaying material |
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Explain how detritivores increase the rate of decay by producing a larger surface area |
A maggot eats decaying material it breaks it down in small pieces this increasing surface area making digestion easier and also enables other organisms to feed increasing the rate of decay |
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Explain why changing temperature and the amounts of oxygen and water affect the rate of decay in terms of what two things |
Effect on microbial respiration Effect on growth and reproduction of micro- organisms |
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Ways of preserving food |
Adding sugar or salt Canning Cooling Cooking Freezing Drying Adding vinegar |
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What is a saprophyte |
An organism that breaks down dead organic matter usually used to refer to fungi |
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Advantages of biological control |
No need for chemical pesticides and does not need repeated treatment |
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Disadvantages of biological control |
Predator may not eat pest May eat useful species Predator may increase out of control Predator may not stay in area its needed |
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What are the effects for removing one or more organisms from food chain or web |
By removing the effects could be some animal populations increase because few are eaten or decrease because predators are short of food and have to eat something else |
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Advantages of organic farming |
Does not use artificial fertilisers or pesticides It avoids expensive fertilisers and pesticides Many people believe organic crops are healthier and tastier than other crops |
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Disadvantages of organic farming |
The crops are smaller and the produce expensive |
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Advantages of organic farming |
Does not use artificial fertilisers or pesticides It avoids expensive fertilisers and pesticides Many people believe organic crops are healthier and tastier than other crops |
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Disadvantages of organic farming |
The crops are smaller and the produce expensive |
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Describe organic farming techniques (4) |
Use of animal manure and compost for fertilisers Crop rotation including use of nitrogen fixing crops Weeding Varying seed planting times |
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Advantages of organic farming |
Does not use artificial fertilisers or pesticides It avoids expensive fertilisers and pesticides Many people believe organic crops are healthier and tastier than other crops |
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Disadvantages of organic farming |
The crops are smaller and the produce expensive |
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Describe organic farming techniques (4) |
Use of animal manure and compost for fertilisers Crop rotation including use of nitrogen fixing crops Weeding Varying seed planting times |
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What do farmers use crop rotation |
It is done to avoid build up of soil pests |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Advantages of weeding |
The plants won't have as much competition for water and minerals if there are no weeds |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Advantages of weeding |
The plants won't have as much competition for water and minerals if there are no weeds |
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Explain the disadvantages of using pesticides |
Pesticides may enter and accumulate in food chains Pesticides may harm organisms which are not pests Some pesticides are persistent |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Advantages of weeding |
The plants won't have as much competition for water and minerals if there are no weeds |
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Explain the disadvantages of using pesticides |
Pesticides may enter and accumulate in food chains Pesticides may harm organisms which are not pests Some pesticides are persistent |
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What is hydroponics |
Is how plants can be grown without soil |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Advantages of weeding |
The plants won't have as much competition for water and minerals if there are no weeds |
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Explain the disadvantages of using pesticides |
Pesticides may enter and accumulate in food chains Pesticides may harm organisms which are not pests Some pesticides are persistent |
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What is hydroponics |
Is how plants can be grown without soil |
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What is it where plants can be grown without soil |
Hydroponics |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Advantages of weeding |
The plants won't have as much competition for water and minerals if there are no weeds |
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Explain the disadvantages of using pesticides |
Pesticides may enter and accumulate in food chains Pesticides may harm organisms which are not pests Some pesticides are persistent |
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What is hydroponics |
Is how plants can be grown without soil |
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What is it where plants can be grown without soil |
Hydroponics |
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What are the possible uses of hydroponics |
Glasshouse tomatoes Plant growth in areas of barren soil |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Advantages of weeding |
The plants won't have as much competition for water and minerals if there are no weeds |
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Explain the disadvantages of using pesticides |
Pesticides may enter and accumulate in food chains Pesticides may harm organisms which are not pests Some pesticides are persistent |
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What is hydroponics |
Is how plants can be grown without soil |
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What is it where plants can be grown without soil |
Hydroponics |
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What are the possible uses of hydroponics |
Glasshouse tomatoes Plant growth in areas of barren soil |
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How are plants grown with hydroponics |
Plants roots are in specially treated water that contains required amount of fertiliser and oxygen |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Advantages of weeding |
The plants won't have as much competition for water and minerals if there are no weeds |
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Explain the disadvantages of using pesticides |
Pesticides may enter and accumulate in food chains Pesticides may harm organisms which are not pests Some pesticides are persistent |
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What is hydroponics |
Is how plants can be grown without soil |
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What is it where plants can be grown without soil |
Hydroponics |
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What are the possible uses of hydroponics |
Glasshouse tomatoes Plant growth in areas of barren soil |
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How are plants grown with hydroponics |
Plants roots are in specially treated water that contains required amount of fertiliser and oxygen |
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Hydroponics are used in what type of framing |
Intensive |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Advantages of weeding |
The plants won't have as much competition for water and minerals if there are no weeds |
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Explain the disadvantages of using pesticides |
Pesticides may enter and accumulate in food chains Pesticides may harm organisms which are not pests Some pesticides are persistent |
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What is hydroponics |
Is how plants can be grown without soil |
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What is it where plants can be grown without soil |
Hydroponics |
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What are the possible uses of hydroponics |
Glasshouse tomatoes Plant growth in areas of barren soil |
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How are plants grown with hydroponics |
Plants roots are in specially treated water that contains required amount of fertiliser and oxygen |
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Hydroponics are used in what type of framing |
Intensive |
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Intensive farming methods efficiency cause what |
Raise Ethical dilemmas |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Advantages of weeding |
The plants won't have as much competition for water and minerals if there are no weeds |
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Explain the disadvantages of using pesticides |
Pesticides may enter and accumulate in food chains Pesticides may harm organisms which are not pests Some pesticides are persistent |
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What is hydroponics |
Is how plants can be grown without soil |
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What is it where plants can be grown without soil |
Hydroponics |
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What are the possible uses of hydroponics |
Glasshouse tomatoes Plant growth in areas of barren soil |
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How are plants grown with hydroponics |
Plants roots are in specially treated water that contains required amount of fertiliser and oxygen |
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Hydroponics are used in what type of framing |
Intensive |
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Intensive farming methods efficiency cause what |
Raise Ethical dilemmas |
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What are the advantages of hydroponics |
Better control of mineral levels and disease |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Disadvantages of hydroponics |
Lack of support for plant Required addition of fertilisers |
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Advantages of weeding |
The plants won't have as much competition for water and minerals if there are no weeds |
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Explain the disadvantages of using pesticides |
Pesticides may enter and accumulate in food chains Pesticides may harm organisms which are not pests Some pesticides are persistent |
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What is hydroponics |
Is how plants can be grown without soil |
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What is it where plants can be grown without soil |
Hydroponics |
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What are the possible uses of hydroponics |
Glasshouse tomatoes Plant growth in areas of barren soil |
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How are plants grown with hydroponics |
Plants roots are in specially treated water that contains required amount of fertiliser and oxygen |
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Hydroponics are used in what type of framing |
Intensive |
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Intensive farming methods efficiency cause what |
Raise Ethical dilemmas |
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What are the advantages of hydroponics |
Better control of mineral levels and disease |
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Why are nitrogen fixing crops part of crop rotation |
They release nitrate a important mineral plants need |
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Disadvantages of hydroponics |
Lack of support for plant Required addition of fertilisers |
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Explain how intensive food production improves the efficiency of energy transfer by reducing energy transfer in plant and animal farming |
Get rid of pest including competing plants like weeds As heat from farm animals by keeping them in penned indoors (battery farming) so they are warm and move around less so energy from food is used for growth |
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Advantages of weeding |
The plants won't have as much competition for water and minerals if there are no weeds |
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Explain the disadvantages of using pesticides |
Pesticides may enter and accumulate in food chains Pesticides may harm organisms which are not pests Some pesticides are persistent |
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What is hydroponics |
Is how plants can be grown without soil |
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What is it where plants can be grown without soil |
Hydroponics |
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What are the possible uses of hydroponics |
Glasshouse tomatoes Plant growth in areas of barren soil |
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How are plants grown with hydroponics |
Plants roots are in specially treated water that contains required amount of fertiliser and oxygen |
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Hydroponics are used in what type of framing |
Intensive |
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Intensive farming methods efficiency cause what |
Raise Ethical dilemmas |
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What are the advantages of hydroponics |
Better control of mineral levels and disease |
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