The Online Biology Olympiad, Final Round. Objectives test four(Ecology, Proteins, Human diseases). Duration: 10 minutes, 15 marks.

1.

1 point

If a person shows production of interferon in his body, the chances are that he has got an infection of ...........

malaria

tetanus

measles

typhoid

2.

1 point

HIV belongs to which of the following families of virus?

Togavirus

Lentivirus

Reovirus

Adenovirus

3.

1 point

The source of energy in an ecosystem is ...........

NADPH

sunlight

ADP

ATP

4.

1 point

A population is a group of ...........

species in a community

communities in an ecosystem

ecosystems in the biosphere

individuals in a species

5.

1 point

The repeating units of proteins are?

peptides

fatty acids

amino acids

glycosidic units

6.

1 point

Mycorrhiza represents .................

symbiotic association between a fungus and liver worts

parasitic association between a fungus and roots of higher plants

symbiotic association between a fungus and roots of higher plants

parasitic association between a fungus and an alga

7.

1 point

The iodine used in gram staining serves as a ..........

chelator

mordant

catalyst

cofactor

8.

1 point

The formation of a climax community from an abandoned farmland is an example of .........

autogenic succession

secondary succession

allogenic succession

primary succession

9.

1 point

The formula for exponential population growth is .........

dN/rN=dt

dN/dt=rN

dt/dN=rN

rN/dN=dt

10.

1 point

The intermediate developmental stages in the ecological succession is called?

sere

nudation

climax

ecesis

11.

1 point

Approximately, 50% of total world species are present on ..........

temperate rainforest

tropical rain forest

coral reefs

temperate deciduous forest

12.

1 point

The order of basic processes involved in succession is .........

nudation->invasion->competition and coaction->reaction->stabilization

invasion->stabilization->competition and coaction->reaction->nudation

nudation->stabilization->competition and coaction->invasion->reaction

invasion->nudation->competition and coaction->reaction->stabilization

13.

1 point

The final stable community in an ecological succession is called the .......

seral community

final community

ultimate community

climax community

14.

1 point

All are vitamin deficiency diseases except ..........

scurvy

cheilosis

marasmus

rickets

15.

1 point

Myoglobin is a protein with ........ structure

tertiary

quaternery

primary

secondary

16.

1 point

Ecology deals with the study of ..........

reciprocal relationship between living and non-living components

living and non-living components

living beings

environment

17.

1 point

Migration of cancerous cells from the site of origin to other parts of the body, forming secondary tumours is called .........

epistasis

metastasis

diapedesis

angiogenesis

18.

1 point

Amino acids are joined by ......... bonds.

ionic

peptide

glycosidic

hydrogen

19.

1 point

The pH of a solution of 1M HCl is ............

0.1

0

1

-1

20.

1 point

Reduced number and size of RBCs and decreased amount of haemoglobin is a characteristic of ........

erythrocytic anaemia

pernicious anaemia

microcytic anaemia

megaloblastic anaemia