Morphology of flowering plants

Question 1

In monocots, the primary root is?

Answer 1

short lived and replaced by a large number of roots

Question 2

The roots originate from the?

Answer 2

Base of the stem

Question 3

Fibrous root system is seen in?

Answer 3

Wheat

Question 4

In some plants like __________, _________ and ________, the roots arise from the parts of the plant other than the radicle, what are these roots called?

Answer 4

grass, monstera, banyan tree

Adventitious roots

Question 5

What are the main functions of the roots?

Answer 5

Absorption of water and minerals
Providing a proper anchorage to plant
storing reserve food materials
synthesis of plant growth regulators

Question 6

The root is covered with a apex thimble-like structure called ______ ___

Answer 6

root cap

Question 7

Function of the root cap is?

Answer 7

Protecting the tender apex of the root as it makes through the soil

Question 8

Give a short note on the Meristematic region of the root.

Answer 8

The cells of this region are very small and thin walled with dense protoplasm. The cells which elongate gradually differentiate and mature.

Question 9

The region of maturation is ________ to the region of elongation

Answer 9

upwards

Question 10

Function of root hairs is?

Answer 10

absorbing water and minerals

Question 11

The region where leaves are born are called?

Answer 11

Nodes

Question 12

What is the colour of stem when its young and what it changes to later?

Answer 12

green it changes to brown after maturation.

Question 13

What’s the main function of the stem?

Answer 13

spreading out leaves, flowers and fruits.

Question 14

What does a stem conduct?

Answer 14

water, minerals and photosynthesis

Question 15

The function of some stems is?

Answer 15

storage of food
support
protection
vegetative propagation

Question 16

A leaf develops at the _____ and develops its bud at the _____

Answer 16

node
axil

Question 17

Leaves originate from? (meristem)

Answer 17

shoot apical meristems

Question 18

What are the three main parts of the leaf?

Answer 18

Leaf base
Petiole
Lamina

Question 19

What are stipules

Answer 19

they are small leaf structures at the leaf base

Question 20

In some leguminous plants the leaf base becomes swollen which is called ________

Answer 20

pulvinus

Question 21

The function of petiole is?

Answer 21

To hold the blade to light and allow the leaf to flutter in wind

Question 22

the leaf blade is expanded with?

Answer 22

Veins and Veinlets

Question 23

Name the mid prominent Vein

Answer 23

Midrib

Question 24

Function of veins is?

Answer 24

Providing rigidity
acting as channel
transport of food, water and minerals

Question 25

Arrangement of veins is called?

Answer 25

Venation

Question 26

Parallel venation is seen in

Answer 26

Monocots

Question 27

Reticulate venation is seen in

Answer 27

dicots

Question 28

palmately compound leaf is

Answer 28

Silk Cotton

Question 29

pinnately compound leaf is?

Answer 29

Naem

Question 30

Alternate phyllotaxy is seen in?

Answer 30

China rose, mustard and sunflower

Question 31

Opposite phyllotaxy is seen in?

Answer 31

Calotropis and guava plants

Question 32

Whorled phyllotaxy is seen in?

Answer 32

Alstonia

Question 33

The arrangement of flowers on the floral axis is termed as __________.

Answer 33

inflorescence

Question 34

In _________ type of inflorescence the main axis continues to grow, the flowers are borne _________ in an ____________

Answer 34

racemose laterally acropetal succession

Question 35

In ________ type of inflorescence the main axis terminates in a flower, hence its limited in growth. The flowers are borne in a _______________

Answer 35

cymose basipetal order

Question 36

Flower is the reproductive unit in _____________.

Answer 36

angiosperms

Question 37

A flower has ___ kinds of whorls.

Answer 37

4

Question 38

four whorls are arranged on swollen end of stalk called __________ or __________

Answer 38

thalamus or receptacle

Question 39

Radial symmetry in flower is

Answer 39

actinomorphic

Question 40

Bilateral symmetry in flower is

Answer 40

zygomorphic

Question 41

when a flower can be cut in two radial halves in any axis it is known as _________ and when only into two similar halves it is known as __________

Answer 41

actinomorphic zygomorphic

Question 42

examples of actinomorphic?

Answer 42

mustard, datura, chilli

Question 43

examples of zygomorphic?

Answer 43

pea, gulmohur, bean, cassia

Question 44

example of asymmetric?

Answer 44

Canna