Lichen

Question 1

Lichen helps to …. quality in our ….
Lichen can also be used as a …. (without having ….)
Lichen can be used to measure …., ….

Answer 1

Lichen helps to improve air quality in our environment.
Lichen can also be used as a Bioaccumulator(without having itself killed)
Lichen can be used to measure toxic environmental pollutants, radioactive metals

Question 2

No lichen=
Crustose only =
Crustose+Foliose=
Crustose+Foliose+Fruticose=

Answer 2

No lichen=Very poor air quality
Crustose only = Poor air quality
Crustose+Foliose= Moderate to Good Air Quality
Crustose+Foliose+Fruticose=Excellent Air Quality

Question 3

Fruticose lichen are often … which grow …. to their substrate. They can look like …. growing off the … or …
They run …. with the …. layer outside and the … is found …
The pattern of growth is …. and …. structure such as …

Answer 3

Fruticose lichen are often 3-dimensional which grow perpendicular to their substrate. They can look like little bushes growing off the side of a tree or rock.
They run branches with the fungi layer outside and the algae is found in between
The pattern of growth is vertical and odd shape structure such as globet thread

Question 4

Foliose Lichen are … types and are attached …. and the …. of the leaves is …. to the surface of the …
They possess a …. of … layer with … in the ….
They possess …. which form ….
They possess ….(which are ….) which is attached to the ….
They form …. features

Answer 4

Foliose Lichen are leafy types and are attached loosely and the lobes of the leaves is parallel to the surface of the substrate.
They possess a sandwich of fungi layer with algaen mat in the middle
They possess lobes which form circular growth
They possess rhizines(which are small rootlets) which is attached to the substrate.
They form dimorphic features

Question 5

Crustose lichen form … onto the …, … or …. where they are found. They so attach themselves to the …. that an attempt to … would cause a ….
They are …. without causing a … to the …
They have …. and … to the substrate.

Answer 5

Crustose lichen form crust onto the rock, tree or substrate where they are found. They so attach themselves to the substrate that an attempt to remove then would cause a damage.
They are hard to remove without causing a damage to the lichen
They have flat edges unlobed and closely attached to the substrate.

Question 6

Types Of Lichen

Answer 6

1. Crustose(Crusty)
2. Fruticose(Shruby)
3. Foliose(Leafy)

Question 7

In lichen, …. collects water, …. & …. for the …; and in certain …, it can extract … for both species.
When … is available, it is taken up by the … leading to a … which … to …
They have special … which allows them to ….
They are found on …, …, …. and … or moist places

Answer 7

In lichen, fungus collects water, provides structure & protection for the algae; and in certain species, it can extract minerals for both species.
When moisture is available, it is taken up by the fungus leading to a mechanical change which triggers algae to photosynthesize.
They have special adaptation which allows them to withstand several conditions. They are found on exposed rocky surfaces, asbestos, mortar and water or moist places