MDCAT Biology Online Test

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  • Chapter NameCh 1 - Introduction to Biology

MDCAT Biology Online Test

  • Total Questions80

  • Time Allowed60

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MDCAT Biology Online Test

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Question # 1

The most common animal of phylum Aschelminthes is:

Question # 2

The living organisms, which cannot prepare their own food but obtain ready-made food form others, are:

Question # 3

Most of the vectors for spreading important human diseases belong to:

Question # 4

Nutrients required by organisms in small quantity or in trace amount like zinc, molybdenum, iron, iodine are:

Question # 5

Which of the following organelle is not present in the synaptic knob

Question # 6

The term ecology comes form the ______ words oikos, meaning "The family household"

Question # 7

All food chains and food webs begin from

Question # 8

The type of association between two organisms, which brings benefit to both the organisms is called

Question # 9

Which of the following acts as a bridge between enzyme and substrate?

Question # 10

Which one of the following is not the main ionic nutrient

Question # 11

Major cells infected by HIV are

Question # 12

The lake ecosystem can be divided into ______ number of zones:

Question # 13

What is trampling

Question # 14

Plants growing in extreme cold soil are called:

Question # 15

The productivity can be indicated by:

Question # 16

In a phospholipid molecule, fatty acid is attached to the carbon number_____ of glycerol.

Question # 17

HIV attaches on cell membrane of T cell at _____ receptor site

Question # 18

Many enzymes are simply dissolved in the

Question # 19

The larva formed during the life cycle of Annelida is

Question # 20

Pick up the example of a dinucleotide:

Question # 21

Which are pioneers of terrestrial ecosystem

Question # 22

Sickle cell mutation affects

Question # 23

The processes that have transformed life on earth from its earliest forms to the vast diversity that we observe today, are collectively referred as

Question # 24

A process in which one organism get benefit from the relationship is known as

Question # 25

Food chain is an example of

Question # 26

Enzymes present in human body generally have

Question # 27

Iron, iodine and zinc required by the organisms are said to the:

Question # 28

Which of the following properties is incorrect for both mitochondria and chloroplast?

Question # 29

The correct sequence in a food chain is

Question # 30

Animals devoid of respiratory, excretory and circulatory organs are

Question # 31

Which of the following features is not shared by prokaryotic and eukaryotic cells

Question # 32

The establishment of woody plants that inhibits the growth of most plants other than mosses in succession is known as

Question # 33

Pick up non-membranous organelle

Question # 34

Melanin pigment is produced under the hormone

Question # 35

____can be checked by increasing substrate concentration

Question # 36

The land will be turned to barren land if there is:

Question # 37

Provirus is

Question # 38

Diseases in living organisms which are caused by parasites are called

Question # 39

There is an association between two organisms, which brings benefits to both the organisms

Question # 40

The bond formed between glucose and fructose to form sucrose

Question # 41

About ______% if the total energy from the sun is trapped by the producers in an ecosystem

Question # 42

Nutrients required by organism in large amount like water, carbon, hydrogen, oxygen, nitrogen, phosphorus, sulphur and  calcium are:

Question # 43

Which of the following is correct option

Question # 44

Formation of ES complex activates the______ site of an enzyme

Question # 45

Fresh water ecosystem  cover the land only:

Question # 46

Which of the following is correct about insulin

Question # 47

The animal that is caught and eaten is the

Question # 48

Chloroplasts and mitochondria differ from one another because

Question # 49

The prokaryotes may have arisen more than

Question # 50

Sharp rise in LH output due to estrogens is an example of

Question # 51

Which type of hepatitis is called serum hepatitis

Question # 52

In which types of soil does water logging occur?

Question # 53

Which of the following virus is DNA enveloped

Question # 54

Which of the following has chitinous cuticle in the exoskeleton

Question # 55

Methylation of proteins occur in

Question # 56

Deficiency of sex hormones in adults results in

Question # 57

Leech is preferably a

Question # 58

Snails are the intermediate hosts of

Question # 59

______ symbiont the root nodules of legume plants

Question # 60

The term ecology originally was used in 1866 by the German zoologist:

Question # 61

_____ is a good example of polymorphism

Question # 62

Biosphere is spread out over the surface of planet earth extending about ______ kilometers in the upper reaches of atmosphere and also in same distance into the depths of oceans

Question # 63

It is not a symptom of AIDS

Question # 64

What are chances for having Rh-ve baby if one parent is Rh+ve and (homozygous) and other is Rh-ve

Question # 65

Identify correct trophic level of food chain

Question # 66

Succinic acid is the ____ of succinic dehydrogenase which undergoes____

Question # 67

Darwin published " The Origin of Species" in

Question # 68

Hormones secreted by follicles in female

Question # 69

Virus without envelope is

Question # 70

Which of the following cannot cross the phospholipid bilayer easily

Question # 71

In HIV infection cycle, uncoating of virus takes place

Question # 72

The tundra vegetation supports the animals called:

Question # 73

Viral core always contain __ among the following

Question # 74

The association between a host and parasite is called

Question # 75

The nutrient cycles are also called as

Question # 76

A process in which green plants are eaten by animals is called

Question # 77

Puffiness of hands is the character of

Question # 78

Primary succession that starts in a pond is called:

Question # 79

The study of human population and factor affecting it is called

Question # 80

Which can't increase their weight in inorganic medium

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