Biology Online Quiz Test 05

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Biology Online Quizzes

Biology Quiz Test 05 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 05

Which one of the following blood vessels in mammals would normally carry the largest amount of urea?
(A) Dorsal aorta
(B) Hepatic portal vein
(C) Renal artery
(D) Hepatic artery

Answer
Renal artery

In a closed circulatory system, blood is completely enclosed within
(A) The skeleton
(B) Sinuses
(C) Vessels
(D) Hearts

Answer
Vessels

In which of the following groups of animal the heart pumps only deoxygenated blood?
(A) Fishes
(B) Reptile
(C) Birds
(D) Amphibians

Answer
Fishes

What is the AIDS virus?
(A) Single-stranded DNA
(B) Single-stranded RNA
(C) Double-stranded RNA
(D) Double-stranded DNA

Answer
Single-stranded RNA

What is the major function of the kidney?
(A) to control blood pressure
(B) to control body temperature
(C) to help in digestion of body
(D) to remove waste from the blood

Answer
to remove waste from the blood

What is the vitamin that is excreted by humans in urine called?
(A) Vitamin C
(B) Vitamin B
(C) Vitamin B12
(D) Vitamin A

Answer
Vitamin C

Which growth is affected by the Virus of AIDS?
(A) Hemoglobin
(B) RBCs in blood
(C) Grey Cells in blood
(D) T cells in blood

Answer
T cells in blood

The Vitamin that gets destroyed on heating is
(A) B
(B) C
(C) E
(D) K

Answer
C

The vitamins that is synthesized in the body by intestinal bacteria is
(A) Vitamins B1
(B) Vitamins B12
(C) Vitamins E
(D) Vitamins K

Answer
Vitamins K

The accumulation of what causes Muscle fatigue?
(A) Lactic acid
(B) Uric acid
(C) Oxalacetic acid
(D) Fyruvie acid

Answer
Lactic acid

Asthma is provoked by
(A) Fever
(B) Allergy
(C) Cold
(D) Head-ache

Answer
Allergy

Which of the following instruments is used for measuring the humidity in air?
(A) Hydrometer
(B) Hygrometer
(C) Barometer
(D) None of these

Answer
Hygrometer

Bodies which usually fall from the sky to the Earth are called
(A) Planets
(B) Meteorites
(C) Both A and B
(D) None of these

Answer
Meteorites

The second most abundant metal found in the Earth’s crust is
(A) Iron
(B) Aluminum
(C) Calcium
(D) Sodium

Answer
Iron

Geology describes the rocky parts of the Earth s
(A) Core
(B) Mantle
(C) Crust
(D) Convection currents

Answer
Crust

The longest and the strongest bone in the human body is
(A) Tibia
(B) Pelvis
(C) Femur
(D) Jaw

Answer
Femur

The largest planet of the solar system is
(A) Jupiter
(B) Mars
(C) Saturn
(D) Earth

Answer
Jupiter

The gibberellins
(A) Are responsible for phototropism and gravitropism
(B) Are gases at room temperature
(C) Are produced only by fungi
(D) Cause bolt in g in some biennial plants

Answer
Cause bolt in g in some biennial plants

The concept of Carbon Credits originated from which of the following?
(A) Earth Summit, Rio de Janeiro
(B) Kyoto Protocol
(C) Montreal Protocol
(D) Conference of Parties (COP) 19

Answer
Kyoto Protocol

The gas, commonly known as laughing gas is
(A) Carbon Dioxide
(B) Nitrous Oxide
(C) Sulfur Dioxide
(D) Sodium Oxide

Answer
Nitrous Oxide

How many time do the hands of a clock coincide in a day?
(A) 18
(B) 22
(C) 25
(D) None of these

Answer
22

Which of the following Vitamins maintains normal clotting of blood?
(A) Vitamin A
(B) Vitamin C
(C) Vitamin D
(D) Vitamin K

Answer
Vitamin K

The uncharged particle in an atom is called
(A) Proton
(B) Electron
(C) Neutron
(D) Gamma

Answer
Neutron

The hottest planet of the solar system is
(A) Venus
(B) Jupiter
(C) Mars
(D) None of these

Answer
Venus

The largest planet of our solar system is
(A) Jupiter
(B) Mercury
(C) Mars
(D) Venus

Answer
Jupiter

Fear of and prejudice against homosexuality is
(A) Homophobia
(B) Ethnographobia
(C) Incest taboo phobia
(D) Control phobia

Answer
Homophobia

Iron deficiency in human body causes
(A) Bone deformity
(B) Irregular heart-beats
(C) Anaemia
(D) Tooth deca

Answer
Anaemia

What is Gavi?
(A) General Alliance for Vaccine
(B) Global Alliance for Vaccine and Immunization
(C) Global American Vaccine Institution
(D) Global Association of Vaccine

Answer
Global Alliance for Vaccine and Immunization

Which organizations are involved in COVAX?
(A) Global Alliance for Vaccination and Immunization (Gavi)
(B) World Health Organization (WHO)
(C) Coalition for Epidemic Preparedness Innovations (CEPI)
(D) All of these

Answer
All of these

Which element of the following is not essential for plants?
(A) Pb
(B) P
(C) K
(D) N

Answer
Pb

Which of the following is a man-made substance?
(A) Timber
(B) Leather
(C) Plastic
(D) Natural Gas

Answer
Plastic

What is the boiling point (°C) of water at 1 atm ?
(A) 70 degrees
(B) 90 degrees
(C) 100 degrees
(D) 110 degrees

Answer
100 degrees

Nili Ravi is a breed of
(A) Camel
(B) Buffalo
(C) Sheep
(D) Deer

Answer
Buffalo

Which is the second largest Planet in our Solar System?
(A) Jupiter
(B) Saturn
(C) Uranus
(D) Neptune

Answer
Saturn

Which of the following is the smallest planet in our Solar System?
(A) Venus
(B) Mercury
(C) Neptune
(D) Uranus

Answer
Mercury

How many chromosomes do people normally have?
(A) 20 pairs
(B) 23 pairs
(C) 40 pairs
(D) 50 pain

Answer
23 pairs

Trachoma is a disease of the
(A) Lungs
(B) Digestive system
(C) Eyes
(D) Kidneys

Answer
Eyes

The term ‘Horticulture’ means study of
(A) Gardens
(B) Insects
(C) Insects
(D) Animals

Answer
GardensGardens

Light travels at———miles per second?
(A) 186,000
(B) 140,000
(C) 120,000
(D) 136,000

Answer
186,000

Physiotherapy deals with
(A) Heart disease
(B) Immobility of joints and muscles
(C) Brian damage
(D) Drug addiction

Answer
Immobility of joints and muscles

Total bones in human body are?
(A) 206
(B) 220
(C) 307
(D) None of these

Answer
206

The birds Who feed marine food remove salt one of glands?
(A) Rectal salt gland
(B) Endocrine glands
(C) Pituitary glands
(D) None of these

Answer
Rectal salt gland

Name the longest bone in human body?
(A) Femur
(B) Neck bone
(C) Back bone
(D) None of these

Answer
Femur

What are the most common organisms on earth?
(A) Humans
(B) Insects
(C) Bacteria
(D) Plants

Answer
Bacteria

Anus is surrounded by _____ types of muscles?
(A) 2
(B) 3
(C) 6
(D) 4

Answer
2

95% of the cytoplasm of RBCs is
(A) Hemoglobin
(B) Enzymes
(C) Salts
(D) Other proteins

Answer
Hemoglobin

The bristles on the body of the cockroach arise from
(A) Epidermis
(B) Trichogen cell
(C) Basement membrane
(D) Malpighian cell

Answer
Trichogen cell

Sporangia of which of the following tracheopytes develop singly on the upper side of sporophylls which may or may not be arranged to form strobili
(A) Prteropsida
(B) Psilopsida
(C) Lycopsida
(D) Sphenopsida

Answer
Lycopsida

Cell wall is absent in
(A) Cocci
(B) Bacilli
(C) Mycobacterium
(D) Mycoplasma

Answer
Mycoplasma

The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called
(A) Environmental biology
(B) Social biology
(C) Human biology
(D) None of these

Answer
Social biology

E. coli and example of entrobacteriace is important for causing diarrheal diseases its size is
(A) 0.1-600 um
(B) 100-200 nm
(C) 1.1-1.5 um (width) 2.0-6.0 um (length)
(D) 0.75-1.25 um

Answer
1.1-1.5 um (width) 2.0-6.0 um (length)

Nodules on roots of leguminous plants have __________ bacteria?
(A) Anaerobic
(B) Nitrogen fixing
(C) Nitrifying
(D) Ammonifying

Answer
Nitrogen fixing

Amoeboid movements and movement of cyclosis is due to
(A) Microfilaments
(B) Microtubules
(C) Intermediate filaments
(D) Cytoskeleton

Answer
Microfilaments

The sequence of 3 bases on tRNA which is complementary to condon of mRNA is called
(A) Gene
(B) Anticodon
(C) Code
(D) Codon

Answer
Anticodon

Grave’s disease is produced due to
(A) Undersecretion of thyroxin
(B) Overproduction of thyroxin
(C) Undersecretion of corticosteroids
(D) Overproduction of corticosteroids

Answer
Overproduction of thyroxin

The single main opening of the sponge cavity is
(A) Osculum
(B) Ostia
(C) Spongocoel
(D) None of these

Answer
Osculum

The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by ?
(A) Molecular biologists
(B) Microbiologists
(C) Freshwater biologists
(D) Social biologist

Answer
Molecular biologists

Fatty acids containing 18 C atoms and a single double bond is
(A) Saturated Fatty acid
(B) Unsaturated fatty acid
(C) Oleic Acid
(D) Plamitic acid

Answer
Oleic Acid

The food of hydra consists of
(A) Humus
(B) Detritus
(C) Dead microscopic animals
(D) Small crustaceans

Answer
Small crustaceans

Of the following four options which one is most advanced?
(A) Anthoceropsida
(B) Bryopsida
(C) Hepaticopsida
(D) None of these

Answer
Anthoceropsida

The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by
(A) Molecular biologists
(B) Microbiologists
(C) Freshwater biologists
(D) Social biologist

Answer
Molecular biologists

Cell membrane under resting conditions is impermeable to all the ions except
(A) Na+
(B) K+
(C) Cl-
(D) PO4-2

Answer
K+

The one which is incorrect pair?
(A) Sori – Indusium
(B) Arthrophytes – Jointed
(C) Dichotomous – Vernation
(D) Lycopods – Ground pries

Answer
Dichotomous – Vernation

Adult birds normally possess only one functional
(A) Ureter
(B) Ovary
(C) Lung
(D) Testis

Answer
Ovary

A joint formed between humerus, radius and ulna is an example of
(A) Immovable joint
(B) Slightly movable joint
(C) Freely movable joint
(D) Fibrous joint

Answer
Freely movable joint

Embryonic induction is caused by part developing from
(A) Endoderm
(B) Ectoderm
(C) Mesoderm
(D) Extraembryonic layers

Answer
Mesoderm

Sub- phylum vertebrate is also known as
(A) Pisces
(B) Craniata
(C) Aves
(D) Amphibia

Answer
Craniata

A group of similar cells that perform a specific function is
(A) Organ
(B) Tissues
(C) Organelle
(D) Organ System

Answer
Tissues

First Actions spectrum was obtained by using
(A) Algae
(B) Fungi
(C) Bacteria
(D) Spirogyra

Answer
Spirogyra

Blood is carried towards the heart by
(A) Arteries
(B) Capillaries
(C) Veins
(D) none of these

Answer
Veins

Protein coasts of viruses are synthesized in
(A) Lytic cycle
(B) Lysogenic cycle
(C) Both A and B
(D) All of the above

Answer
Lytic cycle

Gram positive bacteria appear
(A) Purple
(B) Red
(C) Pink
(D) Blue

Answer
Purple

Normal action potential of a neuronal cell is
(A) plus 50 mv
(B) plus 60 mv
(C) plus 70 mv
(D) plus 80 mv

Answer
plus 50 mv

Inhibitors which block the enzyme by forming weak bond are called
(A) Competitive inhibitors
(B) Non-competitive inhibitors
(C) Irreversible inhibitors
(D) Both A & B

Answer
Both A & B

Biological molecules (proteins) which catalyze a biochemical reaction and remain unchanged after completion of reaction are called
(A) Cofactor
(B) Coenzymes
(C) Activator
(D) Enzymes

Answer
Enzymes

A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is
(A) Pyrolysis
(B) Pyrosis
(C) Peristalsis
(D) Dyspepsia

Answer
Pyrosis

In plants, the neighbouring cells are connected with one another by
(A) Plasmodesmata
(B) Cell walls
(C) Vacuoles
(D) Both A & B

Answer
Both A & B

MSH is produced from
(A) Anterior pituitary
(B) Median pituitary
(C) Posterior pituitary
(D) None of these

Answer
Median pituitary

The one which is present in all living things is
(A) Cell nucleus
(B) DNA or RNA
(C) Cell membrane
(D) Vacuole

Answer
DNA or RNA

Communities are ________ collection of organisms?
(A) Static
(B) Dynamic
(C) May be static or dynamic
(D) None of these

Answer
Dynamic

Hydra has
(A) Brain
(B) Nerves
(C) Neuron-cells
(D) All of the above

Answer
Neuron-cells

An isolated virus is not considered living since it
(A) Separates in to two inner parts
(B) Can not metabolize
(C) Rapidly looses its Genome chemical inert
(D) Is coated with an air tight shield

Answer
Can not metabolize

In plants, water potential is determined by major factors?
(A) Three
(B) Four
(C) Two
(D) Five

Answer
Two

Aquatic arthropods respire through
(A) Spiracles
(B) Gills
(C) Book lungs
(D) Both B and C

Answer
Both B and C

Notochord is present throughout life in
(A) Urochordates
(B) Cephalochordates
(C) Chordates
(D) Vertebrates

Answer
Cephalochordates

Malphighian tubules absorb waste materials and salts from
(A) Blood
(B) Lymph
(C) Gut
(D) Hemolymph

Answer
Hemolymph

Antibodies play important role against microorganisms and other pathogens to which type of proteins do they belong
(A) Globular proteins
(B) Fibrous Proteins
(C) Both A and B
(D) None of these

Answer
Globular proteins

On the basis of collected facts and figures, a scientist formulates a factitive statement called
(A) Observation
(B) Research work
(C) Hypothesis
(D) Inductive Reasoning

Answer
Hypothesis

Production of pyrogens is a __________ phenomenon?
(A) Protective
(B) Destructive
(C) Constructive
(D) Aggressive

Answer
Protective

Among the followings which is the most longest supportive cell?
(A) Tracheids
(B) Sclereids
(C) Trachea
(D) Collenchyma cells

Answer
Tracheids

Haemoglobin can be almost completely oxygenated by an oxygen pressure of __________ of mercury
(A) 10 mm
(B) 60 mm
(C) 10 cm
(D) 100 mm

Answer
100 mm

Astronauts may use which technique to grow fruits and vegetables ?
(A) Tissue culture techniques
(B) Cloning
(C) Pasteurization
(D) Hydroponic culture technique

Answer
Hydroponic culture technique

In which of the following joint muscles are arranged in the same plane as that of joint?
(A) Between radius and ulna
(B) Between ulna and scapula
(C) Between humerus and scapula
(D) Between femur and tibia

Answer
Between femur and tibia

Lungs are covered with double layered thin membranous sac called
(A) Disphragm
(B) Pleura
(C) Pericardium
(D) Rib cage

Answer
Pleura

Lime stone deposits are formed from
(A) Zooflagellates
(B) Foraminferans
(C) Aetinopods
(D) Apicomplexans

Answer
Foraminferans

Chlorophyll is a/an _____ molecule?
(A) Inorganic
(B) Anionic
(C) Organic
(D) Cationic

Answer
Organic

Approximately _____ species of bacteria are known to cause diseases in humans
(A) 100
(B) 200
(C) 300
(D) 400

Answer
200

erating openings formed in the bark through which exchange of gases takes place and water is lost in the form of vapours are
(A) Hydathods
(B) Stomata
(C) Lenticels
(D) None of these

Answer
Lenticels

The first cell of the sporophyte generation is
(A) Oospore
(B) Spore mother cell
(C) Spore
(D) Gamete

Answer
Oospore

The number of calories required to raise the temperature of 1g of water from 15 to 16?C is called
(A) Specific Heat of Vaporization
(B) Specific Heat capacity
(C) Caloric Heat
(D) Both A & C

Answer
Specific Heat capacity

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