MDCAT Biology Online Test

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  • Chapter NameCh 1 - Introduction to Biology

MDCAT Biology Online Test

  • Total Questions80

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MDCAT Biology Online Test

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Question # 1

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

Question # 2

What is done to monkeys by HIV

Question # 3

Which one of the following is site of oxidative Phosphorylation in mitochondria

Question # 4

The amount of energy left after plants have met their respiratory needs is net primary production, which shows up as plant:

Question # 5

Which component of the cell is mainly concerned with production of cell secretions?

Question # 6

A thin layer of earth in which all living organisms live is called:

Question # 7

When we study a single population relationship to its environment it will be called:

Question # 8

_____is the study of interaction between living organism and their environment

Question # 9

These are the receptors which respond to the mechanical condition of internal organs

Question # 10

Bilirubin

Question # 11

The two linked genes A and B with a 30% recombination frequency must be

Question # 12

Peptidoglycan or murine is a special or distinctive feature of cell wall in

Question # 13

Which of the following reaction is reverse of others

Question # 14

Interaction of two loci

Question # 15

Due to the trampling of the soil layer by the hooves of grazing animals the rain water will:

Question # 16

All food chain and food web begin with:

Question # 17

Resting membrane potential of a neuron is

Question # 18

Lipids store double amount of energy as compared to same amount of carbohydrates, because of

Question # 19

Darwin collected 13 types of birds of :

Question # 20

A heterrozygote offspring quantitatively exceeds the phenotypic expression of both the homozygote parents due to:

Question # 21

Polytrichum is a

Question # 22

This is a ------------------- relationship between algae and fungi

Question # 23

The term ecology comes from the Greek words Oikos, meaning "the family household" and logy (logos) meaning:

Question # 24

Retroviruses cause tumors in

Question # 25

Pick up ester bond present in nucleotide

Question # 26

When living and non-living interact to produce a stable system in which exchange of materiel with flow of energy takes place, it forms a/an:

Question # 27

Sahara Desert i found in :

Question # 28

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

Question # 29

A biotic components includes the components like:

Question # 30

Depolarization of neural membrane is due to

Question # 31

What happens when both alleles of a gene pair independently express in a heterozygote?

Question # 32

All chromosomes other than sex chromosomes are called :

Question # 33

Optimum pH for digestive enzymes of stomach is

Question # 34

Which can convert glucose to glucose 6 phosphate

Question # 35

Charles Eton defined the niche as the species:

Question # 36

Structural proteins of HIV are

Question # 37

Benefits brings about by both of the organisms is called

Question # 38

If non protein part is covalently bonded to the protein part of enzyme, it is known as

Question # 39

Layer of earth where life is present is called

Question # 40

Give an example of transport across cell membrane using energy

Question # 41

Biotic components includes all the

Question # 42

Annual rainfall in grassland is about:

Question # 43

Which of the following cross is carried to check the genotype of an individual showing a dominant phenotype

Question # 44

Newly synthesized Large proteins are digested into small viral proteins by

Question # 45

The dominance relations of 4 O'clock plant can be described in terms of :

Question # 46

Decomposers form _______ trophic level

Question # 47

Topography is study of?

Question # 48

The study of a single population's relationship to its environment will be called as

Question # 49

Endosymbiont hypothesis was first proposed by

Question # 50

Syrinx produces voice in birds. It is located

Question # 51

Which of the following kind of inhibitors don’t compete for active site of enzyme

Question # 52

The succession started on rocks is termed as

Question # 53

Choose the correct option about the following figure:

Question # 54

Food web is the group of various

Question # 55

Plant and animals replace the earlier ones in a way of

Question # 56

Which is incorrect about resting membrane potential

Question # 57

The chief reservoir of nitrogen is the

Question # 58

When bacteria break down nitrates and release nitrogen  back into atmosphere this process is called:

Question # 59

Hemophilia is a ________ disease

Question # 60

At high substrate level, all the active sites of enzyme are

Question # 61

Pick up non-membranous organelle

Question # 62

Chlorophyll molecules resemble with which part of hemoglobin?

Question # 63

Substances cross the cell membrane more easily when they are

Question # 64

Which one of the following always contains DNA?

Question # 65

The essential requirement for life is:

Question # 66

Charles Darwin was born in Shrewsbury, in Western England in

Question # 67

Fungi as well as bacteria are generally known as

Question # 68

A relationship that harms one of the partners is called

Question # 69

Which include seral stages of a primary succession are

Question # 70

--------------- begins forged from bare rocks, sand for where no previous life was found

Question # 71

One poles the average temperature is:

Question # 72

Grazers feed mainly on which kind of plants

Question # 73

In life cycle of bacteriophage, ______ occurs followed by_______.

Question # 74

First invertebrate to develop a nervous system is

Question # 75

Which of the following is not a homopolysccharide?

Question # 76

Part of brain that is involved in learning

Question # 77

The combination of many food chains is termed as

Question # 78

All chromosomes other than sex chromosomes are called

Question # 79

Non-neural cells which encapsule the axon of neurons are

Question # 80

Endangered plant species have been recorded to more than:

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