Biology (Medical Entrance)
Comprehensive biology mix test covering zoology, human anatomy, and applied microbiology for medical entrance preparation
Questions
The organ in fishes which maintains buoyancy is called
- myotomes
- swim bladder
- claspers
- labyrinth organ
Flask-shaped cells that line the interior of sponges are known as
- lophocytes
- sclerocytes
- myocytes
- choanocytes
The body form of glass sponges is
- leuconoid
- asconoid
- syconoid
- asconoid and syconoid
Cerebral cortex in human brain is made of
- white matter
- grey matter
- corpus callosum
- pons varolii
Which of the following is true about sponges?
- They have a well developed nervous system.
- They are all sessile.
- They have a complex digestive system.
- They have a complex circulatory system.
The nerve bundle connecting the two cerebral hemispheres in the human brain is called
- cerebellum
- neural plate
- corpus callosum
- medulla oblongata
The three layers of meninges surrounding the human brain are the
- dura mater, pia mater and grey matter
- dura mater, white matter and arachnoid mater
- dura mater,pia mater and arachnoid mater
- pia mater, grey matter and white matter
Cardiac muscle fibers helping in contraction of ventricles in human heart through electrical impulse are called
- chordae tendineae
- papillary muscles
- troponins
- purkinje fibers
To which sub-phylum of Arthropoda do centipedes and millipedes belong?
- Chelicerata
- Hexapoda
- Myriapoda
- Crustacea
Which of the following arthropods gives birth to live young instead of laying eggs?
- Millipede
- Scorpion
- Centipede
- Lobster
Roots of hair are located in the
- epidermis of skin
- reticular region of dermis
- papillary region of dermis
- hypodermis of skin
The mitral valve in human heart is located between the
- left atrium and left ventricle
- right atrium and right ventricle
- left ventricle and aorta
- pulmonary valve
Which of the following statements is not true about human skin?
- The epidermal layer of skin contains many cells and blood vessels.
- Dermis layer is made up of connective tissue.
- Dermis contains apocrine,sebaceous,sweat glands and blood vessels
- Fibroblasts and adipocytes are found in the hypodermis of skin.
Which of the following enzymes from microbes is used to remove stains?
- Proteinase
- Pectinase
- Lipase
- Trypsin
Name the microorganism that is used to produce citricacid.
- Clostridium butylicum
- Lactobacillus lacti
- Saccharomycetes cerviaceae
- Aspergillus niger
Sebaceous glands are absent in
- eyelids and palms of the hands
- palms of the hands and soles of the feet
- soles of the feet and labia minora
- eyelids and labia minora
Which muscles in the skin are responsible for goose bumps?
- Trichomes
- Keratin
- Erector pili
- Superior rectus
The bacterial group present in cow dung which is useful in biogas production is
- halophile
- lactobacillus
- Thermoacidophile
- Methanogen
Specialised sebaceous glands found in the rim of eyelids are called
- meibomian glands
- apocrine glands
- sudoriferous glands
- lachrymal glands
The microorganism used in beverage industry is
- saccharomycetes
- lactobacillus
- clostridium
- bacillus
The blood chlesterol reducing substance called statin, is obtained from
- trichoderma polysporum
- monascus perpureus
- aspergillus niger
- lactobacillus lacti
Methanogens used in making biogas are
- virus
- fungus
- algae
- bacteria
An enzyme used in detergent formulation obtained from microbe is
- pectinase
- proteinase
- lipase
- amylase
The large holes in swiss cheese is due to Co2 production with the help of
- Aspergillus niger
- Saccharomycetes cerviaceae
- Propionibacterium shermanii
- Lactobacillus
A bacterium which acts as a biofertilizer in association with leguminous plant is
- acetobacter
- clostridium
- rhizobium
- azospirillum