10th class Biology
Chapter 10
Gaseous Exchange
Exercise solved Mcqs
1. The process of gaseous exchange involves;
a) Breakdown of C_H bonds to yield energy
b) Physical movements that take air in and out of body
c)
Getting oxygen from the air and removing carbon dioxide
d) Transport of oxygen by the blood to different parts of
the body
2. Most of the gaseous exchange in a leaf occurs through;
a)
Stomata
b) General surface
c) Cuticle
d) Lenticels
3. How many bronchi are there in the air passageway?
a) One
b)
Two
c) Many
d) None
4. Where dose the gaseous exchange occur in human?
a) Pharynx
b)Trachea
c) Bronchi
d)
Alveoli
5. Which structure actively helps in taking the air out
of lungs?
a) Nasal cavity
b) Bronchus
c) Bronchiole
d)
Diaphragm
6. The primary chemical stimulus for breathing is the
concentration of;
a)
Carbon dioxide in blood
b) Oxygen in blood
c) Carbon dioxide in muscle
d) Oxygen in muscles
7. Point out the FALSE statement about respiration.
a) Gases can easily pass through the walls of the alveoli
b) Gas exchange in lungs is very efficient because lungs
provide large surface area
c)
In emphysema the walls of alveoli break and there is more surface area
d) Dust particles can damage the lung by irritating the
inner alveoli surface
8. A disease involving the breakdown of air sacs of the
lungs is;
a) Pneumonia
b) Bronchitis
c) Asthma
d)
Emphysema
9. Which process dose NOT occur in the nasal cavity?
a) Trapping of large dust particles
b) Humidification of the inhaled air
c) Warming of the inhaled air
d)
Exchange of gaseous
10. What type of blood vessels surrounds the alveoli?
a) Artery
b) Arteriole
c)
Capillary
d) Vein
10th class Biology
Chapter 11
Homeostasis
Exercise solved Mcqs
1. The human urinary system consists of;
a) Rectum, lungs, kidney, ureters
b) Kidneys, ureters, urinary bladder
c) Skin, liver, lungs, kidneys
d) kidney, ureters, urinary bladder, urethra
2. Which organ is responsible for filtering the blood?
a) Intestine
b) Brain
c) Stomata
d)
Kidney
3. Which tube between kidney and urinary bladder is the;
a)
Ureter
b) Urethra
c) Renal Tubule
d) Nephron
4. 'Body balance' of water, salts, temperature and
glucose termed as;
a) Excretion
b) Tubular secretion
c)
Homoeostasis
d) Re-absorption
5. Which is correct order for the path taken by urin
after it leaves the kidneys?
a) Urethra, bladder, ureters
b) Bladder, ureters, urethra
c)
Ureters, bladder, urethra
d) Bladder, urethra, ureters
6. What is the function of the ureter?
a) To store urine
b)
To carry urine form the kidney to the bladder
c) To carry urine out of the body
d) To remove waste from the blood
7. What waste products are excreted by kidneys?
a) Urea, water & salts
b) Salts, water and carbon dioxide
c) Urea & water
d) Urea & salt
8. The two main functions of sweat are;
a) To keep the body cool and to remove excess proteins
b) To keep the body warm and to filter the blood
c)
To filter the blood and to remove the waste products
d) To remove waste products and to cool the body
9. Which would NOT be present in the filtrate entering
the Bowman's capsule of nephron?
a) Water
b) Calcium ions
c)
Blood cells
d) Urea
10. During peritoneal dialysis, the waste materials move
from:
a) The abdomen to the dialysis fluid
b) The dialysis fluid to the peritoneum blood vessels
c)
The peritoneum blood vessels to the dialysis fluid
d) The dialysis fluid to the abdomen
10th class Biology
Chapter 12
Coordination and control
Exercise solved Mcqs
1. Processes that carry nerve impulses away from the cell
body are called;
a)
Axon
b) Dendrites
c) Synapses
d) Myelin sheath
2. The portion of the nervous system that is involuntary
in action:
a) Somatic nervous system
b) Motor nervous system
c)
Automatic nervous system
d) Sensory nervous system
3. Which neurons are present inside the central nervous
system?
a) Sensory neurons only
b) Motor neurons only
c) Sensory and motor neurons both
d)
Interneurons only
4. The part of the brain responsible for muscle movement,
interpretation of the senses and the memory is the;
a) Pons
b) Medulla oblongata
c) Cerebrum
d)
Cerebellum
5. Apart from hearing, what other major body function is
performed by the ear?
a) Hormone secretion
b)
Body balance
c) Reduction in nerve pressure
d) All of these
6. The myelin sheath is formed by_______, which warp
around the axons of some neurons.
a) Nodes of Ranvier
b) Axons
c) Dendrites
d)
Schwann cells
7. This is NOT a part of hindbrain:
a) Pons
b) Medulla oblongata
c)
Cerebrum
d) Cerebellum
8. If you look at an intact human brain, what you see the
most is a large, highly convoluted outer surface. This is the;
a)
Cerebrum
b) Cerebellum
c) Pons
d Medulla oblongata
9. Insulin and glucagon are produced in the;
a) Hypothalamus
b) Anterior pituitary
c) Liver
d)
Pancreas
10. All of these are hormones except
a) Insulin
b) Thyroxin
c) Glucagon
d)
Pepsinogen
10th class Biology
Chapter 13
Support and Movement
Exercise solved Mcqs
1. Find the ball-and-joint.
a) Joint the finger bones
b) Joint of neck and skull bones
c) Joint at elbow
d)
Pelvic girdle and pectoral girdle
2. All these are the parts of axial skeleton of humans
except:
a) Ribs
Sternum
c)
Shoulder girdle
d) Vertebral column
3. The disorders in which there is an accumulation of
uric acid in joints:
a)
Gout
b) Rheumatoid arthritis
c) Osteoporosis
d) Osteo-arthritis
4. What is correct about tendons?
a) Tendons are flexible and they join muscles with bones
b) Tendons are non-elastic and they join bones with bones
c)
Tendons are non-elastic and they join muscles with bones
d) Tendons are flexible and they join muscles with
muscles
5. How many bones make our skull?
a) 14
b)
22
c) 24
d) 26
6. What are the main components of a bone?
a) Marrow, spongy bone, wax
b) Marrow, compact bone, wax
c) Compact bone and marrow
d)
Compact bone, spongy bone, marrow
7. What do some bones produce?
a) Mucous
b) Hormones
c) Oxygen
d)
Blood cells
8. How would you define skeletal system?
a) All the bones in body
b) All the muscles and tendons
c) All the body's organ, both soft and hard tissues
d)
All the bones in body and the tissues that connect them
9. Find the INCORRECT statement.
a) Bone is where most blood cells are made
b) Bone serves as a storehouse for various minerals
c)
Bone is a dry and non-living supporting structure
d) Bone protects and supports the body and its organs
10. The purpose of rib cage is to:
a) Protect the stomach
b) Protect the spinal cord
c)
Protect the heart and lungs
d) Provide an object to which the lungs can attach
10th class Biology
Chapter 14
Reproduction
Exercise solved Mcqs
1. Growing an entire new plant from part of the original
plant is called;
a) Budding
b) Regeneration
c) Fragmentation
d)
Vegetative propagation
2. Rhizopus reproduces asexually by;
a) Binary fission
b) Budding
c)
Spore formation
d) Endospore formation
3. A corm develops into new garlic plant. This is the
process of;
a)
Vegetative propagation
b) Regeneration
c) Meiosis
d) Gametogenesis
4. Which is NOT an advantage of grafting?
a) The graft is identical to the parent plant
b) Grafting allows the propagation of seedless fruits
c)
The graft combines the characteristics of two fruits
d) Graft may allow for the faster production of desirable
fruits
5. Pollination is the transfer of pollens from;
a)
Anther to stigma
b) Stigma to anther
c) Sepal to petal
d) Petal to sepal
6. Double fertilization in plants means;
a) Fusion of two sperms with two egg cells
b)
Fusion of one sperm with egg cell and other sperm with fusion nucleus
c) Fusion of two sperms with a single egg cell
d) Fusion of tube nucleus with fusion nucleus and sperm
with egg cell
7. After fertilization in plants, the fruit develops
from;
a) Ovule wall
b)
Ovary wall
c) Petals
d) Anther
8. Which part of the female reproductive system receives
egg cells from the ovary?
a)
Fallopian tube
b) Uterus
c) Vagina
d) Cervix
9. Inside testes, the sperms are produced in;
a) Vas deferens
b) Sperm duct
c)
Seminiferous tubules
d) Collecting ducts
10. Which of these cells has haploid number of
chromosomes?
a) Spermatogonium
b) Primary spermatocyte
c)
Secondary spermatocyte
d) All of these
10th class Biology
Chapter 15
Inheritance
Exercise solved Mcqs
1.
An organisms'
expressed physical trait, such as seed colour or pod shape, is called its;
a) Genotype
b)
Phenotype
c) Karyotype
d) Physical type
2.
An organisms has two
different alleles for a single trait. Its genotype is said to be;
a) Homozygous
b)
Heterozygous
c) Hemizygous
d) Homologous
3.
In the
cross-pollination between a true-breeding yellow pod plant and a true-breeding
green pod plant, where green pod colour is dominant, the resulting offspring
(F1 generation) will be;
a) ¼ green, ¾ yellow
b) All yellow
c) ¼ yellow, ¾ green
d)
All green
4.
How many genetically
different kinds of gametes an individual with genotype AAbb can produce?
a)
1
b) 2
c) 4
d) 8
5.
Which of the
following statements regarding genes is FALSE?
a) Genes are located on chromosomes
b) Genes consist of a long sequence of DNA
c) A gene consists information for a production of a protein
d)
Each cell contains a single copy of every gene
6.
Mendel’s primary contribution
to our understanding of inheritance was;\
a) The idea that gene
are found on chromosomes
b)
Explanation of the patterns of inheritance
c) The discovery of alleles
d) Determining that informations contained in DNA are for
protein synthesis
7.
A purple-flowered pea
plant has the genotype PP, which of the following statements about this plant
is FALSE?
a)
Its phenotype will be white flowers
b) It has a homozygous dominant genotype
c) When bred to a white-flowered plant, all offspring will
be purple flowered
d) All the gametes are produced will have the same flower
colour allele
8.
Charles Darwin
proposed that organisms produce many more offspring than can possible survive on the limited
amount of resources available to them. According to Darwin, the offspring that
are mostly likely to survive are those that;
a) Are born first and grow fastest
b) Are largest and most aggressive
c) Have no natural predators
d)
Are best adapted to the environment
10th class Biology
Chapter 16
Man and his Environment
Exercise solved Mcqs
Q1. Which of
the following is the abiotic component of ecosystem?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Oxygen
Q2. When we
eat onions, our trophic level is,
a)
Primary consumer
b)
Secondary consumer
c)
Decomposer
d)
Producer
Q3. Identify
the correctly matched pair;
a)
Rainfall-biotic factors in ecosystem
b)
Global worming-formation of fossil fuels
c)
Renewable natural resource-air
d)
Com-secondary consumer
Q4. In the
food chain tree → caterpillar → robin →hawk → coyote, which is the secondary
consumer?
a)
Caterpillar
b)
Robin
c)
Hawk
d)
Coyote
Q5. In
ecosystems, the flow of _________ is one way, while _______ is/are constantly
recycled.
a)
Mineral, energy
b)
Energy, minerals
c)
Oxygen, energy
d)
Glucose, water
Q6. In the
food chain “grass → rabbit → fox → bear → mushroom”, how many types of decomposers
are present?
a)
1
b)
2
c)
3
d)
4
Q7.
Organisms in the ecosystem that are responsible for the recycling of plant and
animal wastes are:
a)
Producers
b)
Consumers
c)
Decomposers
d)
Competitors
10th class Biology
Chapter 17
Biotechnology
Exercise solved Mcqs
Q1. Find the
correct match for the formation product and the organisms involved;
a)
Formic acid-Saccharomyces
b)
Ethanol-Saccharomyces
c)
Ethanol-Aspergillus
d)
Glycerol-Aspergillus
Q2. Which
one is NOT an objective of genetic engineering?
a) Production of cheese and yogurt by lactic acid bacteria
b) Isolation
of a particular gene or part of a gene
c)
Production of RNA and protein molecules
d)
Correction of genetic defects in higher organisms
Q3. Which of these is an anti-viral protein?
a)
Urokinase
b)
Thymosin
c)
Insulin
d)
Interferon
Q4. The
first step in genetic engineering is;
a)
Growth of the genetically modified organism
b)
Transfer of the recombinant DNA into the host organism
c)
Isolation of the gene of interest
d)
Insertion of a gene into a vector
10th class Biology
Chapter 18
Pharmacology
Exercise solved Mcqs
Q1.
Antibiotics are used for the;
a)
Treatment of viral infections
b)
Treatment of bacterial infections
c)
Immunization against infections
d)
Both a and b
Q2. The
substances used for the treatment, cure, prevention or diagnosis of disease are
called;
a)
Medicinal drugs
b)
Narcotics
c)
Hallucinogens
d)
Sedaflves
Q3. Aspirin
is catagorized as;
a)
A drug from animals
b)
A synthetic drug
c)
A drug from plants
d)
A drug from minerals
Q4. The
drugs are used to reduced pain and known as;
a)
Analgesics
b)
Antiseptics
c)
Antibiotics
d)
Sedatives
Q5. Which of
the following drugs is obtained from plants?
a)
Aspirin
b)
Opium
c)
Cephalosporin
d)
Insulin
Q6. Which of
these addictive drugs are also used are painkillers?
a)
Narcotics
b)
Sedatives
c)
Hallucinogens
d)
All can be used
Q7.
Sulfonamides affect bacteria in the following way;
a)
Break the cell wall
b)
Inhibit protein synthesis
c)
Stop the synthesis of the new cell wall
d)
Stop the synthesis of folic acid
Q8. What is
true about vaccines?
a)
Protect against the future viral and
bacterial infections
b)
Treat the existing bacterial infections only
c)
Treat existing infections and also protect against
future infections
d)
Protect against viral infections only
