MCQs Biology Fsc Part 2 Unit 1 Homeostasis With Answer

MCQs Biology fsc part 2 chapter 1 Homeostasis with answer keys. All MCQs are collected from past papers of all Punjab Boards. This topic MCQs Biology fsc part 2 will help you achieve 90+ marks in Biology.

MCQs Biology Unit 1 Homeostasis

Here is a collection of MCQs Biology Fsc Part 2 Unit 1 Homeostasis. Read online MCQs Biology fsc part 2 fully solved. All MCQs are from past papers of 2014 to 2022.

The Protection of the internal environment from the harms of fluctuation in the external environment is termed as (RWP.GI, 2016)
(A) Osmoregulation
(B) Thermoregulation
(C) Excretion
(D) Homeostasis

A plant is adapted to remove the folding of its cells in fresh water:
(GRW. GI, 2016)
(A) Mesophyte
(B) Cactus
(C) Hydrophyte
(D) Xerophyte

The more concentrated external environment is termed as: (DGK. GI, 2014) (GRW. GII, SWL. GI, 2015) (BWP. 2018)
(A) Hypotonic
(B) Hypertonic
(C) Isotonic
(D) Osmotic

Which one is not a mesophyte? (GRW.GU, 2015)
(A) Brassica
(B) Rose
(C) Mango
(D) Cacti

A diluted solution compared to the cell concentration is termed as: (LIIR. GI, 2014) (RWP. 2018)
(A) Hypertonic
(B) Hypotonic
(C) Isotonic
(D) Paratonic

The category of plants that have adapted of small and thick leaves to limit water loss is called: (RWP. GI, 2017) (AJK. GI, 2017) (AJK, 2018)
(A) Hydrophytes
(B) Xerophytes
(C) Mesophytes
(D) Aygrophytes

Contractile vacuoles are found in: (LUR. GU, 2016)
(A) Plants
(B) Freshwater protozoa
(C) terrestrial animals
(D) marine plants

Tri ethylamine Oxide is produced in: (MLN. GI, 2016)
(A) Hag Fish
(B) Bony Fish
(C) Marine Fish
(D) Cartilaginous Fish

The Tolerance of dehydration called: (MLN. GI, 2016)
(A) Osmoconformers
(B) Osmoregulators
(C) Anhydrobiosis
(D) Dehydration

Animals that do not require to adjust their internal osmotic state actively are known:
(FBD. GI, 2016)
(A) Osmoregulators
(B) Osmo conformers
(C) Terrestrials
(D) Hypertonic

Freshwater protozoans pump out excess water by (MLN. GI, 2015)
(A) Contractile Vacuole
(B) Food Vacuole
(C) Pinocytosis
(D) Phagocytosis

Among the vertebrates, hagfishes are isotonic with the surrounding: (MLN. GI, 2017)
(A) Freshwater
(B) Seawater
(C) Pond water
(D) River water

Which part of the plant body serves as excretophores? (LIIR. GI GII, 2015) (SWL. GI, 2016)
(A) Root
(B) Stem
(C) Leaves
(D) Flowers

1g of ammonia nitrogen requires how much water for excretion: (LIIR. GI, FBD. GI, 2016) (SWL 2018)
(A) 50 ml
(B) 100 ml
(C) 250 ml
(D) 500 ml

Urea is detoxified form of in the urea cycle which can be retained in the body.
(GRW. GI, 2015)
(A) Ammonia
(B) Nitrogen
(C) Uric Acid
(D) CO2

Animals excreting urea are called: (GRW, GI, SGD. GI, 2015) (LHR, GI, 2018)
(A) Ammon telic
(B) Amino telic
(C) Ureotelic
(D) Ureotelic

The Removal of Sebum on the Skin is for: (SGD. GI, BWP. GI. 2015)
(A) Nutrition
(B) Excretion
(C) Protection
(D) Thermoregulation

Number of Ammonia molecules required to produce one molecule of urea is:
(LHR. GI. 2015) (RWP.2018)
(A) 01
(B) 02
(C) 03
(D) 04

Nitrogenous waste is very toxic and dissolves quickly in body fluid is:
(DGK. GI, 2014) (FBD. GII, 2015) (DGK. GI. 2017)
(A) CO2
(B) Urea
C Ammonia
(D) Uric Acid

Flame cells are part of excretory system of:
(LHR. GII, 2014)(BWP. GI, 2016) (DGK. GI, FBD. GI, 2017) (SGD. 2018)
(A) Hydra
(B) Cockroach
(C) Planaria
(D) Earthworm

Animals of the group of flatworms have a simple tubular excretory system called:
(RWP. GI, 2016)
(A) Kidney
(B) Nephron
(C) Nephridia
(D) Protonephridia

The planaria flatworm have simple tubular excretory system known as: (DGK. GII, 2016) (LHR. GII, 2018)
(A) Protonephridium
(B) Metanephridium
(C) Mesonephridium
(D) Prenephridium

A network of closed tubule without internal openings is called:
(LHR. GII, 2015)
(A) Protonephridium
(B) Metanephridium
(C) Nephron
(D) Kidney

The group of animals whose excretory system is structurally associated with the digestive tract: (SGD. GII, 2015)
(A) Vertebrates
(B) Earthworm
(C) Planaria
(D) Insects

Cockroach and other insects remove their nitrogenous waste in form of:
(LHR. GII, FBD. G1, 2015)
(A) Ammonia
(B) Urea
(C) Uric Acid
(D) Creatinine

Fresh water Flatworms excrete: (BWP. GI. 2015)
(A) Very Dilute Urine
(B) Very Concentrated Urine
(C) Slightly Concentrated Urine
(D) Moderately Concentrated Urine

The tubular excretory system of Planaria is: (AJK. GI, 2015)
(A) Protonephridia
(B) Metanephridia
(C) Mesonephridia
(D) Eunephridia

Protonephridium is found in: (GRW. GII, 2014)
(A) Hydra
(B) Planaria
(C) Earthworm
(D) Cockroach

Metanaphridia are the excretory structures present in: (BWP. GI, 2014) (GRW.2018)
(A) Hydra
(B) Planaria
(C) Cockroach
(D) Earthworm

Excretory structure present in cockroach are: (DGR. GII, 2014) (BWP. 2018)
(A) Contractile vacuole
(B) Malpighian tubules
(C) Nephridia
(D) Flame cells

The central station of metabolism and the body’s central metabolic clearing agent is:
(LIIR. GII, GRW.GII, 2014) (AJK. 2018)
(A) Stomach
(B) Liver
(C) Kidneys
(D) Gut

Which of the following is not synthesized in Liver? (SWL. GI, 2015)
(A) Urea
(B) Uric Acid
(C) Albumin
(D) Urine

Of all the excretory products, the principal one is: (MLN. GI, 2017)
(A) Ammonia
(B) Urea
(C) Uric Acid
(D) Bilirubin

Which one is an example of Xerophytes? (SGD. GI. 2017)
(A) Brassica
(B) Rose
(C) Mango
(D) Cactus

Urea is produced in: (GRW. GI, 2017)
(A) Lungs
(B) Liver
(C) Kidneys
(D) Pancreas

Arginase splits the arginine to form urea and: (GRW.GI. 2017)
(A) Ornithine
(B) Citrulline
(C) Creatinine
(D) Ammonia

Urine leaves the kidney through a duct called: (LUR. GII, 2016)
(A) Urethra
(B) Pelvis
C) Ureter
(D) Nephron

Pressure filtration in the kidney specifically occurs at (GRW.GI. 2016)
A Bowman’s capsule
(B) Loop of Henle
(C) Vasa recta
(D) Urine collecting

Mammalian Kidney including human is adapted to conserve water up to: (MLN. GI, 2015)
(A) 69.5%
(B) 79.5%
(C) 89.5%
(D) 99.5%

The urine leaves the body during urination from the bladder through a tube called: (AJK, GI. 2015)
(A) Pelvis
(B) Urethra
(C) Ureter
(D) Medulla

Blood supplied to Kidneys from each cardiac beat is: (RWP. GI. 2014)
(A) 10%
(B) 20%
(C) 30%
(D) 50%

In Juxtamedullary nephrons, additional capillaries extend down to form a loop of vessels called: (FBD. GI, 2014) (LHR. GI. AJK. GI, 2017)
(A) Peritubular Capillaries
(B) Efferent arterioles
C) Vasa recta
(D) Glomerulus

All the collecting tubules of human kidney finally discharge into the: (FBD. GI, 2017)
(A) Bowman’s Capsule
(C) Pelvis
(D) Urethra

Which one of the following structures of the kidney is involved in the production of
concentrated urine? (LHR. GI. 2017)
(A) Glomerulus
(B) Juxtamedullary nephron
(C) Cortical nephron
(D) Vasa recta

A pair of kidneys, consist of millions of functional units called: (DGK. GII, 2017)
(A) Nephrons
(B) Neurons
(C) Dendrons
(D) Flatrons

The reabsorption of water in collecting tubules is under the control of: (RWP. GI, 2017)
(A) Aldosterone
(C) Tubular Secretion
(D) Pressure filtration

Non-surgical removal of kidney stone is called: (SWL. GI, 2016)
(A) Dialysis
(B) Lithotripsy
(C) Uremia
(D) Kidney transplant

The high degree of renal failure is also called as (DGK. GI, 2016) (SGD. 2018)
(A) Uremia
(B) Leukemia
(C) Anemia
(D) Lithotripsy

The incidence of calcium oxalate type stones of kidney are: (LHR. GII, DGK. GII, 2014) (LHR. GI, SGD. GI, 2015) (BWP. GI, LIIR. GI, SGD. GI, 2016)
(A) 40%
(B) 50%
(C) 60%
(D) 70%

The high degree renal failure is called: (GRW. GI, 2015)
(A) Uremia
(B) End stage Renal Disease
(C) Both A & B
(D) Uredecty

The human abdominal cavity is lined by a thin epithelium called:
(MLN. GI, 2014) (SWL. GII, DGK. 2017)
(A) Ectoderm
(B) Endoderm
(C) Peritoneum
(D) Epidermis

Hemodialysis means: (LHR. GII, 2017)
(A) Removing the blood
(B) Clearing the blood
(C) Diluting the blood
(D)Storing the blood

A high level of circulating calcium in the blood is called: (BWP. GI, 2017)
(A) Hypercalcemia
(B) Hypoglycemia
(C) Osteomalacia
(D) Hyperoxaluria

Super cool cytosol, without ice formation, is caused by: (RWP. GI, 2014)
(A) Heat shock proteins
(B) Unsaturated fatty acids
(C) Solutes
(D) Enzymes

Most land mammals respond to cold by raising their: (DGK. GII, 2016)
(B) Shivering Thermogenesis
(A) Furs
(C) Bristles
(D) Spines

The mechanism of evaporative cooling in the respiratory tract of a dog is known as (DGK, G1, 2015)
(A) Skin
(B) Panting
(C) Thermoregulation
(D) Vasodilation

Which one of the following is an Endotherm? (DGK. GI, 2016)
(A) Humming Bird
(B) Reptiles (Lizard)
(C) Birds
(D) Bat

Which of the following is not endotherm? (FBD, GI, 2014) (DGK. GI, 2015)
(A) Bird
(B) Amphibian
(C) Flying Insect
(D) Mammal

Activation of Sweat Glands to produce sweat for evaporative cooling is a type of adaptation:
(SGD. GI, 2016) (GRW.2011 (SGD. GI, 2014) (GRW. GI, 2016) (MLN. 2018)
(A) Structural
(B) Physiological
(C) Behavioral
(D) None of these

Chemical that causes fever and is produced from blood cells are:
(A) Bilirubin
(B) Interferons
(C) Pyrogens
(D) Antibodies

The rate of heat production is increased by increasing muscle contraction, by movement is called: (DGK. GII, 2015)
(A) Thermoregulation
(B) Shivering Thermogenesis
(C) Non-Shivering Thermogenesis
(D) Thermostat

MCQs Of Biology Fsc Part 2

Saliva and urine are used for evaporative cooling by (MLN. GI, 2014)
(A) Bat
(B) Dogs
(C) Birds
(D) Seals

The body temperature regulation in human is based on the complex homeostatic thermostat
present in the:
(A) Cerebrum
(B) Medulla Oblongata
(C) Hypothalamus
(D) Thalamus

Animals inhabiting an environment with acute shortage of water excrete.
(A) Ammonia
(B) Uric Acid
(C) Urea
(D) Allantois

In bacterial and viral infections, pathogens and leukocytes cell produce a chemical called:
(BWP. GI, 2017)
(A) Pyrexia
(B) Toxins
(C) Aflatoxins
(D) Pyrogen

The partly digested food in cockroach is temporarily stored in: (LHR. GII, 2017)
(A) Crop
(B) Gizzard
(C) Rectum
(D) Stomach

The incidence of calcium phosphate stones in humans are: (RWP. GII, 2017)
(A) 5%
(B) 10%
(C) 15%
(D) 20%

A disease caused by the low level of calcium in the blood is called: (MLN. GI, 2017)
(A) Cramp
(B) Paralysis
(C) Tetany
(D) Tetanus

The germ theory of disease was formulated by (LHR. GII, 2017)
(A) Robert Koch
(B) Louis Pasteur
(C) Edward Jenner
(D) Christian Gram

Metabolism of purines and pyrimidine’s produce a significant amount of (LHR. GII, 2014)
(A) Creatinine
(B) Creatine
(C) Xanthine
(D) Trim ethyl amine oxide

The mechanism, which eliminates nitrogenous waste, is referred to as (SWL. GI, 2014)
(A) Osmoregulation
(B) Excretion
(C) Thermoregulation
(D) Ejection

Bats and hummingbirds are called: (LHR. GI, 2018)
(A) Ectotherms
(B) Endotherms
(C) Heterotherms
(D) Mesotherms

The blood vessel supplying the blood to Bowman’s capsule is: (LHR. GII. 2018)
(A) Afferent arterioles
(B) Efferent arterioles
(C) Renal artery
(D) Renal vein

The excretory product requires minimum water for its removal: (DGK. 2018)
(A) Urea
B) Uric acid
(C) Creatinine
(D) Ammonia

The glomerular filtrate is reabsorbed in: (MLN. 2018)
(A) Proximal tubule
(B) Bowman’s capsule
(C) Loop of Henley
(D) Distal tubule

In each nephron inner end form a cup-shaped swelling called: (FSD. 2018)
(A) Glomerulus
(B) Henley’s loop
(C) Bowman’s capsule
(D) Pelvis


We hope these multiple choice questions of MCQs Biology Fsc Part 2 Unit 1 Homeostasis will play an important role in the preparation of Fsc and entry test examination.

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