MDCAT Biology Important Guess Online Practice Test Prepare
Q.1 Diseases in living organisms which are caused by parasites are called:
A) Disinfestations C) Infections
B) Antisepsis D) Infestations
Q.2 The nutrient cycles are also called:
A) Biogeochemical cycles C) Bio element cycles
B) Biochemical cycles D) Geochemical cycles
Q.3 The productivity of aquatic ecosystem is determined by:
A) Water C) Light
B) Light and nutrients D) Nutrients
Q.4 What is the drawback of nuclear energy?
A) It causes radiation pollution C) It is very expensive
B) It is not long lasting D) It pollutes the air
Q.5 Arteriosclerosis is:
A) A metabolic disorder C) An infectious disorder
B) A degenerative Disorder D) A nutritional deficiency disorder
Q.6 Antibiotics act against:
A) Bacterial Diseases C) Bacterial and Viral Diseases
B) Allergies D) Viral Diseases
Q.7 Immediate source of energy for cellular metabolism is:
A) Lipids C) Carbohydrates
B) ATP D) Proteins
Q.8 Haemoglobin exhibits:
A) Secondary Structure C) Quaternary Structure
B) Primary Structure D) Tertiary Structure
Q.9 Pepsin enzyme is produced in an inactive form and is activated in situation when it is required
because:
A) Not produced in complete form C) It does not work efficiently at that time
B) Quite capable of destroying cells internal structure D) None of the above
Q.10 Enzyme after catalysis detaches itself from the product:
A) Completely C) Changed
B) Incompletely D) Unchanged
Q.11 A group of ribosomes attached to messenger RNA is known as:
A) Ribosome C) Nucleosome
B) Lysosome D) Polysome
Q.12 Detoxification of harmful drugs within the cell is done by:
A) Nucleolus C) Ribosomes
B) Smooth Surface Endoplasmic Reticulum D) Food Vacuoles
Q.13 Tay-Sach’s disease is due to the presence of an enzyme that is inverted in the catabolism of:
A) Proteins C) Ascorbic Acid
B) Carbohydrates D) Lipids
Q.14 What is true about pattern baldness?
A) It is autosomal recessive disease in males C) It is X-linked disease
B) It is autosomal dominant disease in males D) It is Y-linked disease
Q.15 Symptoms of Herpes Simplex is:
A) Abdominal Pain C) Vesicular lesions in the epithelial layer
B) Fever D) Failure of immune system
Q.16 The major cell infected by the HIV is:
A) Leucocyte C) Helper T-lymphocyte
B) Monocyte D) B-lymphocyte
Q.17 ___________ are used as important vectors in genetic engineering.
A) Ribosomes C) Nucleoids
B) Plasmids D) Mesosomes
Q.18 Which of the following is aerobic bacterium?
A) Spirochete C) E. coli
B) Cyanobacteria D) Pseudosomanas
Q.19 The giant amoebas inhabit mud at the bottom of fresh water ponds and obtain energy from:
A) Microscopic bacteria C) Anaerobic bacteria
B) Aerobic bacteria D) Methanogenic bacteria
Q.20 A large group of parasitic protozoa, some of which causes various diseases such as malaria to
humans, are:
A) Aschelminthes C) Annelida
B) Platyhelminthes D) Arthropods
Q.21 Penicillin is obtained from:
A) Penicillium notatum C) Aspergillus fumigatus
B) Aspergillus flavus D) Penicillium chrysogenum
Q.22 Which of the following components is less resistant to decay?
A) Lignin C) Chitin
B) Starch D) Cellulose
Q.23 __________ are bioindicators of air pollution.
A) Cyanobacteria C) Mycorrhiza
B) Fungi D) Lichens
Q.24 The gymnosperms are called ‘Naked Seeded’ plants because they bear naked:
A) Antheridia C) Fruits
B) Ovules D) Archegonia
Q.25 The integumented indehiscent mega sporangium is called:
A) Seed C) Archegonium
B) Megagametophyte D) Ovule
Q.26 Pulses are present in the family:
A) Caesalpinlaceae C) Gramineae
B) Fabaceae D) Mimosaceae
Q.27 It is an endoparasite of humans, cattle and pig that completes its life cycle in two hosts:
A) Tapeworm C) Liver fluke
B) Aurelia D) Planaria
Q.28 Tse-tse fly causes the sleeping sickness and skin diseases by transmitting:
A) Plasmodium C) Anopheles
B) Trypanosoma D) Insects
Q.29 Coelem is a cavity lined by:
A) Mesoderm C) Epiderm
B) Endoderm D) Ectoderm