Plant diversity Flashcards

1
Q

What did Norman Borlaug do for the ‘Green revolution’?

A

Dwarf wheat: 1965-1970 food yields doubled in India and Pakistan saving over a billion lives
Nobel Peace Prize (1970)

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2
Q

What are some causes of food waste in low-income countries?

A

Poor storage conditions

Pests and diseases

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3
Q

What are some causes of food waste in developed countries?

A

Retail: shelf life, cosmetic appearance

Household food waste

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4
Q

How will crops need to be adapted to deal with climate change?

A

Drought-resistance
Flooding-resistance
Salt-resistance

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5
Q

What percentage of global crop yields are lost to plant pests and diseases?

A

40%

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6
Q

What percentage of wildlife species found on UK farmland were under threat from agricultural practices in 2000?

A

67%

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7
Q

What does it mean for plants to have plasticity?

A

It is possible for plant cells to undifferentiate then re-differentiate

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8
Q

How do lycophytes and ferns reproduce?

A

With spores rather than seeds

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9
Q

What are flowering plants called?

A

Angiosperms

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10
Q

What are the two types of angiosperms?

A

Monocots and dicots

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11
Q

What is a cotyledon?

A

A leaf-like structure formed in the embryo

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12
Q

What is a monocot?

A

One cotyledon

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13
Q

What is a dicot?

A

Two cotyledons

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14
Q

What are some examples of monocots?

A

Grasses, palms and orchids

Most cereal crops

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15
Q

What are dicots generally?

A

Broad-leafed plants

Most leafy crops

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16
Q

What are two forms of pollination for plants?

A

Wind pollination

Animal pollination

17
Q

Describe how wind pollination works.

A

Flowers structured for dispersal
Common method in monocots
Large quantities of pollen

18
Q

Describe how animal pollination works.

A

Usually insects
Brightly coloured structures
Attractive
Benefit for insects- nectar