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INTERNAL AND EXTERNAL LEAF STRUCTURE

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

What type of Venation that makes the veins spread into different apexes?

a)

Covergent Palmate Reticulate Venation

b)

Pinnate Reticulate Venation

c)

Divergent Palmate Reticulate Venation

d)

Divergent Palmate Parallel Venation

2.

OK, so which among the following is Bipinnate ?

a)
b)
c)
3.

Now what is the zone of leaf when it seperate from the plant?

(a)  

4.

Which plant is Palmate Multifoliate?

a)
b)
c)
d)
5.

Plant that have more than one kind of leaf is ?

a)

Heterophylly

b)

Pubescent

c)

Dichophylly

d)

Phyllode

6.

Which plant is Pinnate?

a)
b)
7.

Type of conduction tissue that transfers food?

a)

mesophyll

b)

stomata

c)

xylem

d)

phloem

8.

First layer of leaf internal structure?

a)

Appendages

b)

stomata

c)

Cutin

d)

Epidermes

9.

Part of external leaf structure that is responsible for Plant gaseous exchange?

a)

Abaxial

b)

Palisade Layer

c)

Adaxial

d)

Appendages

10.

Fatty acid that forms a continuous layer on the outer epidermal wall

(a)  

11.

Why is the abaxial part of the leaf is less greener than the adaxial part?

a)

Due to Stomata gaseous exchange

b)

Due to huge amount of Chloroplast

c)

Trip lang

d)

Due to Cutin waxes and fatty acids

12.

The reason why is mesophyll green in color?

a)

Chlorophyll

b)

Phloem

c)

Para hindi DDS or Dilawan

d)

Xylem

13.

Which is responsible of cutin secretion?

a)

Palisade mesophyll

b)

Epidermis

c)

Spongy mesophyll

d)

Stomata

14.

The length of the leaf from midrib to margin is called?

a)

mediolateral

b)

ligule

c)

proximodistal

d)

auricle

15.

One of the function of Trichome is a protection to herbivores, which among the following is the other function

a)

None of the above

b)

To guide the veins in their pattern

c)

To Decrease the amount of evaporation

d)

For pollination

16.

Petiole is also known as what?

a)

Leaf Stalk

b)

Stem

c)

Archi

d)

Node

17.

Cell that surrounds stomata. Also help to regulate the rate of transcription.

a)

Secretion Cells

b)

Guard Cells

c)

Cutin

d)

Ploem

18.

Abscission can occur in premature leaves.

a)

True

b)

False

19.

The lower part of leaf is called Abaxial

a)

True

b)

False

20.

The process which plant undergoes hormonal changes which causes them shed leaves is called what?

a)

Appengegical Cycle

b)

Abscission Zone

c)

Secondary Growth