Biology Online Quiz Test 09

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Biology Online Quizzes

Biology Quiz Test 09 test contains multiple-choice questions with answers for competitive exam preparation. We have provided Biology online quizzes below which include questions related to different topics.

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Biology Quiz Test 09

Which of the following parts of the brain controls body temperature and hunger?
(A) Thalamus
(B) Pons
(C) Cerebellum
(D) Hypothalamus

Answer
Hypothalamus

Which of the following is a part of hindbrain?
(A) Hypothalamus
(B) Cerebellum
(C) Spinal cord
(D) Corpus callosum

Answer
Cerebellum

The balancing organ of the ear is
(A) Organ of Corti
(B) Vestibular apparatus
(C) Tectorial membrane
(D) Cochlea

Answer
Vestibular apparatus

Intercostal muscles are attached with
(A) Diaphragm
(B) Ribs
(C) Thigh
(D) Abdomen

Answer
Ribs

A deltoid ridge is present in
(A) Humerus
(B) Femur
(C) Radius
(D) Ulna

Answer
Humerus

Cartilage at the end of long bones is
(A) Calcified cartilage
(B) Fibrous cartilage
(C) Hyaline cartilage
(D) Elastic cartilage

Answer
Hyaline cartilage

Which of the following is the correctly matched pair of an organ and muscles present in the organ?
(A) Intestine – striated and involuntary
(B) Upper arm – smooth muscle and fusiform in shape
(C) Heart – involuntary and unstriated smooth muscle
(D) Thigh – striated and voluntary

Answer
Thigh – striated and voluntary

The middle portion of the human sperm contains
(A) Nucleus
(B) Centriole
(C) Proteins
(D) Mitochondria

Answer
Mitochondria

Which of the following joints is immovable?
(A) Fibrous joint
(B) Synovial joint
(C) Cartilaginous joints
(D) Ball and Socket joint

Answer
Fibrous joint

Single uriniferous tubule does not contain
(A) Loop of Henle
(B) Collecting duct
(C) Distal convoluted tubule
(D) Bowman’s capsule

Answer
Collecting duct

The basic functional unit of a human kidney is known as
(A) Nephron
(B) Nephridia
(C) Pyramid
(D) Henle’s loop nephron

Answer
Nephron

Which of the following features is common in both humans and adult frogs?
(A) Internal fertilization
(B) Ureotelic mode of excretion
(C) Nucleated RBCs
(D) Four chambered heart

Answer
Ureotelic mode of excretion

Heartbeat originates from
(A) papillary muscles
(B) SA node
(C) AV node
(D) Purkinje fibres

Answer
SA node

Which of the following organs contains Bundle of His?
(A) Pancreas
(B) Brain
(C) Kidney
(D) Heart

Answer
Heart

Which of the following organs is known as “graveyard” of RBCs?
(A) Spleen
(B) Kidney
(C) Liver
(D) Gall bladder

Answer
Spleen

The maximum amount of urea is present in
(A) Dorsal Aorta
(B) Hepatic Vein
(C) Renal Vein
(D) Hepatic Portal Vein

Answer
Hepatic Vein

Lungs are enclosed within
(A) Perichondrium
(B) Periosteum
(C) Pleural membrane
(D) Pericardium

Answer
Pleural membrane

Which of the following is present on the surface of intestinal epithelial cells?
(A) Zymogen granules
(B) Pinocytic vesicles
(C) Phagocytic vesicles
(D) Microvilli

Answer
Microvilli

Which of the following muscular valve controls the flow of digestive juice from the hepatopancreatic duct to duodenum?
(A) Sphincter of Oddi
(B) Semilunar valve
(C) Ileocaecal valve
(D) Pyloric sphincter

Answer
Sphincter of Oddi

Which of the following organisms is used in alcoholic fermentation?
(A) Pseudomonas
(B) Aspergillus
(C) Saccharomyces
(D) Penicillium

Answer
Saccharomyces

Trichoderma harzianum is useful for
(A) Bioremediation of contaminated soils
(B) Gene transfer in higher plants
(C) Reclamation of wastelands
(D) Biological control of soilborne plant pathogens

Answer
Biological control of soilborne plant pathogens

Find the incorrectly matched pair
(A) Serratia – Drug addiction
(B) Spirulina – Single cell protein
(C) Rhizobium – Biofertilizer
(D) Streptomyces – Antibiotic

Answer
Serratia – Drug addiction

Which of the following microorganisms is not used as a biofertilizer?
(A) Rhizobium
(B) Nostoc
(C) Mycorrhiza
(D) Agrobacterium

Answer
Agrobacterium

Which alga can be used as food for the human being?
(A) Chlorella
(B) Polysiphonia
(C) Ulothrix
(D) Spirogyra

Answer
Chlorella

Yeast is used for the production of
(A) Tetracycline
(B) Butanol
(C) Ethanol
(D) Citric Acid

Answer
Ethanol

A common biopesticide for preventing plants from butterfly caterpillars is
(A) Trichoderma
(B) Baculovirus
(C) Glomus
(D) Bacillus thuringiensis

Answer
Bacillus thuringiensis

Which of the following is used as a biofertilizer for soyabean crop?
(A) Rhizobium
(B) Azotobacter
(C) Nostoc
(D) Azospirillum

Answer
Rhizobium

Which of the following organism is nitrogen-fixing and found in rice fields in symbiotic association with Azolla?
(A) Frankia
(B) Tolypothrix
(C) Spirulina
(D) Anabaena

Answer
Anabaena

Which of the following produces citric acid?
(A) Aspergillus
(B) Pseudomonas
(C) Saccharomyces
(D) Clostridium

Answer
Aspergillus

The _________ is a temporary organ that connects a mammalian mother to its foetus
(A) Placenta
(B) Chorion
(C) Endometrium
(D) None of these

Answer
Placenta

The ________ is an ovoviviparous animal
(A) Bonobo
(B) Basking shark
(C) Blue shark
(D) None of these

Answer
Basking shark

________ is an example of an oviparous animal
(A) Elephant
(B) Sheep
(C) Pidgeon
(D) None of these

Answer
Pidgeon

___________ is an example of a viviparous animal
(A) Goat
(B) Duck
(C) Crocodile
(D) None of these

Answer
Goat

Acrosome is filled with
(A) Lipids
(B) Hormones
(C) Digestive enzymes
(D) None of these

Answer
Digestive enzymes

Acrosome is filled with
(A) Lipids
(B) Hormones
(C) Digestive enzymes
(D) None of these

Answer
None of Above

Wolffian duct is also known as
(A) Mesonephric duct
(B) Ejaculatory duct
(C) Major sublingual duct
(D) Cystic duct

Answer
Mesonephric duct

The hormone that is released from the testes is
(A) Progesterone
(B) Vasopressin
(C) Testosterone
(D) None of these

Answer
Testosterone

Bidder’s canal receives
(A) Egg
(B) Sperms
(C) Ammonia
(D) Oxygenated Blood

Answer
Sperms

Cryptorchidism is a condition where
(A) One of both testes are not developed
(B) One or both testes fail to descend into the scrotum
(C) One or both testes are not formed
(D) None of these

Answer
One or both testes fail to descend into the scrotum

How does human sperm locomote?
(A) Flagella
(B) Cillia
(C) Neutrophills
(D) None of these

Answer
Flagella

Umbilical cord contains
(A) Pluripotent stem cells
(B) Cord blood stem cells
(C) Blood stem cells
(D) None of these

Answer
Cord blood stem cells

___________is an organelle that helps the sperm to penetrate the ovum
(A) Acrosome
(B) Zona pellucida
(C) Megalis
(D) None of these

Answer
Acrosome

Where does the ovum receive the sperm?
(A) Animal pole
(B) Vegetal pole
(C) Zona pellucida
(D) None of these

Answer
Animal pole

How many autosomes does a human primary spermatocyte have?
(A) 34
(B) 44
(C) 54
(D) 33

Answer
44

_______ is a lytic enzyme released by the sperm
(A) Hyaluronidase
(B) Trypsin
(C) Helicase
(D) None of these

Answer
Hyaluronidase

A deltoid ridge is present in
(A) Humerus
(B) Femur
(C) Radius
(D) Ulna

Answer
Humerus

Cartilage at the end of long bones is
(A) Calcified cartilage
(B) Hyaline cartilage
(C) Elastic cartilage
(D) Fibrous cartilage

Answer
Hyaline cartilage

Which of the following is the correctly matched pair of an organ and muscles present in the organ?
(A) Intestine – striated and involuntary
(B) Upper arm – smooth muscle and fusiform in shape
(C) Heart – involuntary and unstriated smooth muscle
(D) Thigh – striated and voluntary

Answer
Thigh – striated and voluntary

The middle portion of the human sperm contains
(A) Nucleus
(B) Proteins
(C) Centriole
(D) Mitochondria

Answer
Mitochondria

Which of the following joints is immovable?
(A) Fibrous joint
(B) Synovial joint
(C) Cartilaginous joints
(D) Ball and Socket joint

Answer
Fibrous joint

Single uriniferous tubule does not contain
(A) Loop of Henle
(B) Collecting duct
(C) Distal convoluted tubule
(D) Bowman s capsule

Answer
Collecting duct

The basic functional unit of a human kidney is known as
(A) Nephron
(B) Pyramid
(C) Henle s loop nephron
(D) Nephridia

Answer
Nephron

Which of the following features is common in both humans and adult frogs?
(A) Internal fertilization
(B) Ureotelic mode of excretion
(C) Nucleated RBCs
(D) Four chambered heart

Answer
Ureotelic mode of excretion

Heartbeat originates from
(A) papillary muscles
(B) SA node
(C) AV node
(D) Purkinje fibres

Answer
SA node

Which of the following organs contains Bundle of His?
(A) Pancreas
(B) Brain
(C) Kidney
(D) Heart

Answer
Heart

Which of the following organs is known as graveyard of RBCs?
(A) Spleen
(B) Kidney
(C) Liver
(D) Gall bladder

Answer
Spleen

The maximum amount of urea is present in
(A) Dorsal Aorta
(B) Hepatic Vein
(C) Renal Vein
(D) Hepatic Portal Vein

Answer
Hepatic Vein

Lungs are enclosed within
(A) Perichondrium
(B) Periosteum
(C) Pleural membrane
(D) Pericardium

Answer
Pleural membrane

Which of the following is present on the surface of intestinal epithelial cells?
(A) Zymogen granules
(B) Pinocytic vesicles
(C) Phagocytic vesicles
(D) Microvilli

Answer
Microvilli

Which of the following muscular valve controls the flow of digestive juice from the hepatopancreatic duct to duodenum?
(A) Sphincter of Oddi
(B) Semilunar valve
(C) Pyloric sphincter
(D) Ileocaecal valve

Answer
Sphincter of Oddi

The eggshell of birds becomes thin by the pollution from pesticides due to the interference in the activity of
(A) Calmodulin
(B) MgATPase
(C) CaATPase
(D) Calcium

Answer
CaATPase

dB is the abbreviation used for the quantitative expression of
(A) Density of bacteria in a medium
(B) A Particular Pollutant
(C) Dominant Bacillus in a culture
(D) A pesticide

Answer
A Particular Pollutant

Plant species with a wide range of genetic distribution evolve into a local population known as
(A) Ecotype
(B) Population
(C) Ecosystem
(D) Biome

Answer
Ecotype

Which of the following lake zones has phytoplanktons in abundance?
(A) Littoral zone
(B) Benthic zone
(C) Limnetic zone
(D) Profundal zone

Answer
Limnetic zone

The population of birds declined in an area where DDT was extensively used. Why?
(A) The birds stopped laying eggs
(B) The eggs laid by the birds did not hatch
(C) The snakes ate the eggs
(D) The DDT spray killed all the birds

Answer
The eggs laid by the birds did not hatch

The pyramid of energy is always upright states that
(A) The energy conversion efficiency of herbivores is better than carnivores
(B) The energy conversion efficiency of carnivores is better than herbivores
(C) Producers have the lowest energy conversion efficiency
(D) Energy conversion efficiency is the same in all trophic levels

Answer
The energy conversion efficiency of herbivores is better than carnivores

Identify the mismatched pair
(A) Tundra – Permafrost
(B) Savanna – Acacia trees
(C) Prairie – Epiphytes
(D) Coniferous forest – Evergreen trees

Answer
Prairie – Epiphytes

What type of food chain is it? dead animals → blowfly maggot → maggots → frog → snake
(A) Detrital food chain
(B) Decomposer food chain
(C) Predator food chain
(D) Grazing food chain

Answer
Detrital food chain

The upper part of an aquatic ecosystem contains
(A) Nekton
(B) Plankton
(C) Benthos
(D) both (1) and (2)

Answer
Plankton

All species of Lemur are endemic to which area?
(A) Madagascar
(B) Seychelles Island
(C) Galapagos Island
(D) New Caledonia

Answer
Madagascar

Which one is a ‘K’ selected species?
(A) Aspergillus
(B) Human
(C) Taraxacum
(D) Grass

Answer
Human

Select a non-denitrifying bacteria
(A) Pseudomonas aeruginosa
(B) Thiobacillus
(C) Thiobacillus denitrificans
(D) Bacillus ramosus

Answer
Bacillus ramosus

In thermal stratification, the middle region which shows vertical temperature change is called
(A) Mesolimnion
(B) Epilimnion
(C) Metalimnion
(D) Hypolimnion

Answer
Metalimnion

In an ecosystem, the energy flow is always
(A) Always unidirectional
(B) Always bidirectional
(C) In any direction
(D) Always down directional

Answer
Always unidirectional

The ability of a population to increase under ideal environmental conditions is called
(A) Natality
(B) Carrying capacity
(C) Biotic potential
(D) Absolute natality

Answer
Biotic potential

The ratio between energy flow at different points in a food chain is known as
(A) Ecological capacity
(B) Ecological efficiency
(C) Ecological assimilation
(D) Ecological potential

Answer
Ecological efficiency

Allelopathy refers to
(A) Inhibition of growth of one species by another by the production of toxins
(B) Inhibition of sporulation of pathogen by the host
(C) Altering the reproductive cycle of one organism by another
(D) Inhibition of growth of one species by another by preventing reproduction

Answer
Inhibition of growth of one species by another by the production of toxins

Lincoln index measures
(A) Population mortality rate
(B) Population natality rate
(C) Population size
(D) Population density

Answer
Population size

Which is not the characteristic of a population?
(A) Natality
(B) Mortality
(C) Stratification
(D) Sex ratio

Answer
Stratification

Which is not the characteristic of ‘r’ selected species?
(A) Reproduce quickly
(B) Parental care
(C) A low survival rate of progenies
(D) Produce a large number of progenies

Answer
Parental care

The bottom area where production is less than respiration in a pond ecosystem is termed as
(A) Profundal zone
(B) Tidal zone
(C) Benthic zone
(D) Limnetic zone

Answer
Profundal zone

Which of the following requires maximum energy?
(A) Secondary consumer
(B) Decomposer
(C) Primary consumer
(D) Primary producer

Answer
Primary producer

The process of vernalization is practised in
(A) Cold countries
(B) Hot countries
(C) Only in sub-tropical countries
(D) Only in tropical countries

Answer
Cold countries

Which statement is correct with respect to the food chain?
(A) Every component of food chain forms trophic level
(B) Inter-relation between different food chains is known as a food web
(C) All the chains formed by nutritional relations is used to understand energy flow
(D) All of the above

Answer
All of the above

An orchid living on a tree exhibits
(A) Predator
(B) Mutualism
(C) Commensalism
(D) Parasitism

Answer
Commensalism

Plants growing under shade are known as
(A) Psamophytes
(B) Sciophytes
(C) Heliophytes
(D) Monocots

Answer
Sciophytes

Plants growing under direct sunlight are known as
(A) Heliophytes
(B) Sciophytes
(C) Psamophytes
(D) Dicots

Answer
Heliophytes

According to Shelford’s Law of Tolerance, the organisms wide environmental factor tolerance limit show
(A) Narrow distribution with low population size
(B) Wide distribution with high population size
(C) Narrow distribution with high population size
(D) Wide distribution with low population size

Answer
Wide distribution with high population size

Which is the renewable exhaustible natural energy resource?
(A) Coal
(B) Petroleum
(C) Kerosene
(D) Biomass

Answer
Biomass

The natural place of an organism or community is known as
(A) Niche
(B) Biome
(C) Habitat
(D) Habit

Answer
Habitat

Which of the following immunity is called the first line of defence?
(A) Innate Immunity
(B) Active immunity
(C) Passive immunity
(D) Acquired immunity

Answer
Innate Immunity

Cells Involved In Innate Immunity are
(A) Phagocytes
(B) Macrophages
(C) Natural Killer Cells
(D) All of the above

Answer
All of the above

Skin, body hair, cilia, eyelashes, the respiratory tract and the gastrointestinal tract are examples of
(A) Physical barrier
(B) Cellular barriers
(C) Cytokine barriers
(D) Physiological barriers

Answer
Physiological barriers

Which of the following immunity is obtained during a lifetime?
(A) Innate immunity
(B) Active immunity
(C) Passive immunity
(D) Both B and C

Answer
Both B and C

Which of the following does not act as a protecting barrier for the body surface?
(A) Skin
(B) Mucus
(C) Gastric acid
(D) Salivary amylase

Answer
Salivary amylase

Which of the following conveys the longest-lasting immunity to an infectious agent?
(A) Active immunity
(B) Passive immunity
(C) Both (A) and (B)
(D) None of these

Answer
Active immunity

Which of the following cells is involved in cell-mediated immunity?
(A) T-cells
(B) B-cells
(C) Mast cells
(D) Both T and B cells

Answer
T-cells

The branch of biology involved in the study of immune systems in all organisms is called
(A) Botany
(B) Microbiology
(C) Immunology
(D) Biotechnology

Answer
Immunology

Which of the following statements is true about Passive Immunity?
(A) This immunity causes reactions
(B) This immunity develops immediately
(C) This immunity lasts only for a few weeks or months
(D) All of the above

Answer
All of the above

The common disorders caused by a poor immune system include
(A) Epidemic Diseases
(B) Deficiency diseases
(C) Autoimmune diseases
(D) None of the above

Answer
Epidemic diseases

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