MDCAT Entry Test Series BIOLOGY, Test 1 (UNIT 1-3)

MDCAT Entry Test Series BIOLOGY is basically designed for the students preparing for MDCAT competitive examination. It enable Pre-Medical students to learn fundaments of Biology.

Test 1 of MDCAT Entry Test Series BIOLOGY covers UNIT 1-3 having topics Introduction to Biology, Biological Molecules, Cell Biology and Cell Cycle, Microbiology and Kingdom Plantae & Animalia. 

Following are the selected Multiple Choice Question for MDCAT Entry Test Series BIOLOGY. 

INTRODUCTION TO BIOLOGY

Q.1            Study of interactions between organisms and their environment is called:

A) Ecology                                                      

B) Social Biology

C) Zoogeography                                            

D) Biotechnology

Q.2Vaccination is:

    A) Injection of virulent germs                        

    B) Introduction of germs

    C) Inoculation of attenuated germs    

    D) Killing of germs

Q.3Functioning of kidneys in filtration of urea from blood comes under:

    A) Anatomy                                                    

    B) Physiology

    C) Histology                                                   

    D) Morphology

Q.4Transgenic plants are the result of:

A) Hybridization                                             

B) Genetics           

C) Biotechnology                        

D) Gene therapy

Q.5A level in which organisms of various species are interacting is:

    A) Population level                                         

    B) Community level     

    C) Ecosystem                                   

    D) Biome

Q.6Various organs in plants or organ system in animals are assembled to form:

A) An individual                                             

B) A species    

    C) A population 

D) A community

Q.7In which of the following group all are polysaccharides:

    A) Glycogen, maltose, sucrose                       

    B) Glycogen, amylose, cellulose                     

    C) Glucose, sucrose, fructose

    D) Fructose, maltose, lactose

Q.8All of the following are composed exclusively of glucose except:

    A) Lactose                                                      

    B) Maltose   

    C) Amylose                                                   

    D) Cellulose

Q.9 It is an example of non-reducing sugar:

    A) Lactose                                                      

    B) Fructose    

    C) Sucrose                                                 

    D) Galactose

Q.10        Groups which can participate in peptide bond formation:

    A) 1 & 2                                                          

    B) 2 & 3       

    C) 1 & 3                                                  

    D) 2 & 4

Q.11        A polypeptide chain has - COOH group at one end. The group present at other end will be:

    A) R – group                                                   

    B) – NH₂ group

    C) –COOH group                                               

    D) Simple H

Q.12        If a protein consist of only one polypeptide chain, which structural level is not possible:

    A) Primary                                                      

    B) Secondary                                                  

    C) Tertiary 

    D) Quaternary

Q.13        It is not an example of fatty acid:

A) Oleic acid                                                   

B) Palmitic acid      

C) Butyric acid                                        

D) Glutamic acid

Q.14        Nucleotide is:

A) Base-Sugar-OH                                        

B) Base-Sugar-Phosphate                               

C) Sugar-Phosphate

D) (Base-Sugar-Phosphate)_n

Q.15        Name the elements which occur in nucleic acid macromolecules:

A) H,O,P                                                         

B) C,O,N,S                                                     

C) C,O,P,S

D) C,H,O,N,P

Q.16                    The reaction between the phosphate group of one nucleotide & the hydroxyl group of another is:

A) Hydrolysis                                                

B) Decarboxylation                                         

C) Dehydrogenation

D) Dehydration synthesis  

Q.17        What happened when heat killed S cells along with live R cells were injected into mice?

A) Mice died and showed live R cells           

B) Mice died and showed live S cells

C) Mice died and showed dead R cells         

D) Mice survived and showed live R cells

Q.18        Replication is:

A) DNA → DNA                                           

B) RNA → DNA                                           

C) DNA → RNA

D) DNA → Proteins

Q.19        DNA strand which is formed continuously in 5’ → 3’ direction:

A) Lagging strand                                           

B) Template strand                                         

C) Leading strand

D) Conservative strand

Q.20        A promoter site on DNA:

A) Transcribes repressor                                  

B) Initiates transcription     

C) Regulates termination                            

D) Code for RNA polymerase

Q.21        All the stop codons begin with the nucleotide:

A) Uracil                                                         

B) Guanine                                                      

C) Adenine

D) Cytosine

Q.22        Protein synthesis in an animal cell occurs:

A) Only on the ribosomes present in cytosol

B) On ribosomes present in the nucleolus as well as in cytoplasm

C) On ribosomes present in cytosol as well as in mitochondria

D) Only on ribosomes attached to the nuclear envelope and endoplasmic reticulum 

Q.23        Feed back inhibition is due to:

A) High concentration of end products          

B) Enzyme substrate complex                        

C) High concentration of substrate

D) High concentration of enzymes

Q.24        These are biologically activated proteins.

A) Cofactors                                                  

B) Enzymes                                                    

    C) Hormones 

D) RNAs

Q.25        It is common among amylase, arginase and trypsin:

A) Proteins                                                      

B) Produced in stomach                                 

C) Optimum pH below 7

D) Proteolytic enzymes

Q.26        It combines with non-protein part to form a functional enzyme:

A) Coenzyme                                                  

B) Holoenzyme                                               

C) Apoenzyme

D) Prosthetic group

Q.27        Antibiotics are commonly used against: 

A) Viruses                                                      

B) Bacteria                                                     

C) Fungi

D) Algae

Q.28        It can never multiply outside the living cells:

A) Virus                                                          

B) Bacteria                                                      

C) Protozoan

D) Fungi

Q.29        Bacteria which can be grown on artificial culture media are:

A) Saprotroph                                                

B) Obligate parasite                                        

C) Facultative parasite

D) Chemosynthetic bacteria

Q.30        Structure not present in all bacteria is:

A) Cell Membrane                                          

B) Cytoplasm                                                  

C) Nucleoid

D) Cell wall

Q.31        Aspergillosis is caused by fungus belonging to:

A) Ascomycotes                                             

B) Zygomycotes                                             

C) Deuteromoycotes

D) Basidiomcotes

Q.32        Which one is unicellular and not included in protoctista:

A) Rhizopus                                                    

B) Ustilago                                                      

C) Yeast

D) Mushroom

Q.33        Fungi resemble with which of the following due to presence of chitin:

A) Mollusca                                                    

B) Collenchyma                                              

C) Insects

D) Diatoms 

Q.34        It is not a character of fungi:

A) Chitin                                                         

B) Nuclear mitosis                                          

C) Absorptive heterotroph

D) Flagella

Q.35        Rust and smut of wheat is caused by the members of:

A) Ascomycotes                                             

B) Basidiomycotes                                          

C) Zygomycotes

D) Duteromycotes

Q.36        Potato tuber is underground stem. It belongs to family:

A) Gramineae                                                  

B) Solanaceae                                                 

C) Caesalpiniaceae

D) Fabaceae

Q.37        Most important alkaloids are obtained from plants of family:

A) Solanaceae                                                 

B) Gramineae                                                  

C) Cassia family

D) Tobacco plant

Q.38        Tamarindus indica used to get tartaric acid is a member of family:

A) Poaceae                                                      

B) Solanaceae                                                

C) Caesalpiniaceae

D) Rosaceae

Q.39        Most of the terrestrial animals are:

A) Radically symmetrical                               

B) Bilaterally   symmetrical                             

C) Asymmetrical

D) Diploblastic

Q.40        These are the simplest animals:

A) Protozoans                                                            

B) Poriferans 

 C) Platyhelminthes                                                 

D) Nematods

Q.41        It acts as vector for diseases:

A) Mosquito                                                    

B) Tsetse fly 

C) House fly                                                   

D) All A,B,C

Q.42        Acoelomate, pseudocoelomate and coelomate animals are not:

A) Bilaterally symmetrical                              

B) Triploblastic         

C) With tissue organization                                      

D) Without mesoderm

Q.43        In which of the following excretory system developed for the first time:

A) Porifera                                                      

B) Coelenterata  

C) Platyhelminthes                                             

D) Arthropoda

Q.44        Coral reefs provide habitat for sea animals. These are formed by

A) Sea anemone                                              

B) Medrepora

C) Hydra                                      

D) Jelly fish

Q.45        Structures present in plant cells are:

A) Cellulose cell wall              Chloroplast                  Cell membrane

B) Cellulose cell wall              Chloroplast                  Sap vacuole

C) Chitin cell wall                   Chloroplast                  Sap vacuole

D) Chloroplast                        Cell membrane            Sap vacuole

Q.46        These more prominent in a secretory cell than a non-secretory cell:

A) Glogi apparatus                                          

B) Mitochondria                                             

C) Ribosome

D) Nucleoli

Q.47        DNA in bacterial cell is present in:

A) Nucleus                                                      

B) Nucleoid                                                   

            C) Mitochondria 

D) Chloroplast

 

Q.48        Which of the following is mismatched?

A) Nucleoli – Ribosome formation                 

B) Ribosome – Protein synthesis                    

C) ER – Conjugated molecules

D) Mitochondria – Energy production

Q.49        Chemically cell membrane is:

A) Glycoprotein                                              

B) Lipoprotein                                               

               C) Nucleoprotein 

D) Glycolipid

Q.50        Nucleus is visible in:

A) Dividing stage                                          

B) Non-dividing stage                                   

     C) Mitotic phase 

D) Bacterial cell

Q.51        The rough surfaced endoplasmic reticulum (RER) is involved in:

A) Metabolism of lipids                                  

B) Synthesis of proteins                                 

    C) Transmission of impulses 

D) Detoxification of drugs

Q.52        It has major role in formation and secretion of granules containing enzymes for digestion from pancreas:

A) Ribosomes                                                 

B) Endoplasmic reticulum                              

C) Mitochondria

D) Golgi apparatus

 

Q.53        Active transport requires ATP that are provided by:

A) Mitochondria                                             

B) Chloroplast                                                 

C) Ribosomes

D) Nucleus

Q.54        Correct sequence that is followed by an amino acid taken by a cell is:

A) Cytoplasm ® E.R ® Golgi apparatus      

B) E.R ® nucleus ® Lysosome                     

C) Lysosome ® nucleus ® E.R

D) Mitochondria ® Lysosome ® E.R

Q.55        The main function of Golgi complex is:

A) Fermentation                                              

B) Photorespiration                                         

C) Modification

D) Translation

Q.56        In an animal cell, how many centrioles are present at metaphase?

A) One                                                            C) Three

B) Two                                                            D) Four

Q.57        How many kinetochore fibers are present at a pole when a human cell is passing through Metaphase I of Meiosis I?

A) 46                                                               

B) 92                                                               

C) 23

D) 69

Q.58        Anaphase of Mitosis and anaphase I of Meiosis I differ because of:

A) Structure of Spindle                                  

B) Chemical nature of spindle fibers              

C) Number of polar fibers

D) Division of centromere

Q.59        Ester bond is not present in:

A) ATP                                                           

B) NAD                

C) Triglycerides                                          

D) Butyric Acid

Q.60        Most abundant carbohydrate and protein in Kingdom Plantae are:

A) Rubisco + cellulose                                    

B) Rubisco + glucose                                      

C) Cellulose + Rubisco

D) Glucose + Rubisco