Plant disease (triple only) Flashcards

1
Q

Give 7 ways in which plant diseases can be detected.

A

Stunted growth

Spots on leaves

Areas of decay (rot)

Growths

Malformed stems or leaves

Discolouration

Presence of pests

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Give three ways in which a plant disease can be identified

A

Reference to a gardening manual or website

Take platn to laboratory to identify the pathogen

Use testin gkis thayt contain monoclonal antibodies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Name a plant disease caused by a fungus

A

Black spot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name the plant disease

A

Black spot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name a plant disease caused by a virus

A

Tobacco mosaic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name a pest that can cause a plant disease

A

Aphid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Why do plants need nitrate ions for healthy growth

A

Needed to make amino acids and then proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name the pest

A

Aphid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Why do plants require magnesium ions?

A

To make chlorophyll

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

A stunted plants is likley to be deficient in which mineral ion?

A

Nitrates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A plant showing chlorosis is likley to be decicient in which mineral ion?

A

Magnesium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Why are plants with a nitrate deficeincy often sunted?

A

Lack of amino acids

Less protein made

Less chlorophyll made (protein)

Lack of light absorbed

Rate of photosynthesis decreases

Less glucose made

Fewer resources availalbe for cell division

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Name the plant disease

A

Tobacco mosaic disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Name the plant disease

A

Chlorosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What does the term chlorosis mean?

A

Chlorophyll has been broken down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Why are plants with a magniseium deficeincy often sunted?

A

Lack of chlorophyl

Lack of light absorbed

Rate of photosynthesis decreases

Less glucose made

Fewer resources availalbe for cell division

17
Q

Why do aphids cause plants to be stunted?

A

Aphids feed on the sugars

Sugars removed from phloem tissue

Lack of sugar trasnprted around plant

Fewer resources for cell division