BGA

Question 1

First oxy genic photosynthetic organism of the earth

Answer 1

BGA

Question 2

Name the yellow pigment present in BGA

Answer 2

Carotenoid

Question 3

Name the red pigment present in BGA

Answer 3

C - phycoerythrin

Question 4

Name the blue pigment present in BGA

Answer 4

C - phycocyanin

Question 5

Name the green pigment present in BGA

Answer 5

Chlorophyll a

Question 6

Name a red coloured BGA

Answer 6

Trichodesmium

Question 7

Name a unicellular BGA

Answer 7

Spirulina

Question 8

SCP

Answer 8

Spirulina

Question 9

Protein rich BGA

Answer 9

Spirulina

Question 10

Colonial BGA

Answer 10

Anabaena
Microcystis

Question 11

Which type of BGA are surrounded by mucilaginous sheath

Answer 11

Colonial

Question 12

Filalmentous BGA

Answer 12

Nostoc
Oscillatoria

Question 13

Linear colony

Answer 13

Filament

Question 14

Filament of BGA

Answer 14

Trichomes

Question 15

Blue green algae is structurally similar to

Answer 15

Gram Negative bacteria

Question 16

Alpha granules

Answer 16

Cynaphycean starch granules

Question 17

Beta granules

Answer 17

Fat droplets

Question 18

Cell wall in blue green algae is

Answer 18

Bilayered

Question 19

Purpose of gas vacuoles

Answer 19

To maintain buoyancy

Question 20

Prerequisite of multi cellular Arity

Answer 20

Connection of cells both vertically and horizontally

Question 21

How many flagella does blue green algae has

Answer 21

0 …. It is atrichous

Question 22

What is the specific name given to mesosome of BGA

Answer 22

Lamellaesome

Question 23

Purpose of chromatophore

Answer 23

1.  It breaks to form Thylakoid
2. It stores pigments

Question 24

In NCERT , diagram of BGA is of

Answer 24

Nostoc ( Filamentous BGA)

Question 25

Name a cell of nostoc which contains only photosystem one

Answer 25

Heterocyst

Question 26

Name a cell of nostoc which contains nitrogenase enzyme

Answer 26

Heterocyst

Question 27

Name a cell of nostoc which is non photosynthetic

Answer 27

Heterocyst

Question 28

Heterocyst is

Answer 28

1. Thick walled
2. Non green and non photosynthetic
3. Contains nitrogenase
4. Helps in nitrogen fixation
5. Contains only PS -1

Question 29

Name Symbiotic diazotrophic blue green algae

Answer 29

Anabaena and Nostoc —— Anthoceros
Anabaena azollae
Nostoc and Anabaena cycadae

Question 30

Name free-living diazotrophic blue green algae

Answer 30

Anabaena
Nostoc
Aulosira
Oscillatoria

Question 31

The cytoplasm present near the false nucleus of blue Green algae

Answer 31

Centroplasm

Question 32

The cytoplasm present in the peripheral region of BGA

Answer 32

Chromoplasm