Remedial Biology MCQ Questions with Answers Pdf Free Download 2024

Remedial Biology MCQs are specially farmed to strengthen the knowledge about Anatomy and Physiology past papers. This MCQ encompasses various chapter concepts such as the Living world, Flowering plants, Digestive system, Excretory system Reproductive system, etc.

Living World & Morphology of Flowering Plants MCQ

1. Which of the following is a common feature of the category Insecta
(A) Exoskeleton of cutin
(B) Presence of ostium
(C) Three pairs of jointed legs in the thoracic region
(D) Presence of coxal gland for excretion

Ans. B) Presence of ostium

2. In plants, families are characterized based on
(A) Vegetative structures
(B) Reproductive Features
(C) Both a and b
(D) None of the above

Ans. C) Both a and b

3. Tetradynamous stamens are found in family
(A) Malvaceae
(B) Solanaceae
(C) Cruciferae
(D) Liliaceae

Ans. C) Cruciferae

4. Which of the following is a defining Property of living organisms
(A) Cellular organization of the body
(B) Consciousness
(C) Both a and b
(D) None of the above

Ans. C) Both a and b

5. Which of the following organisms do not reproduce
(A) Mules
(B) Sterile worker bees
(C) Sterile human couple
(D) All of the above

Ans. D) All of the above

6. Petunia is
(A) Species
(B) Subgenus
(C) Subspecies
(D) Genus

Ans. C) Subspecies

7. Binomial Nomenclature was given by
(A) Ernst Mayr
(B) Lamarck
(C) Carolus Linnaeus
(D) Darwin

Ans. C) Carolus Linnaeus

8. Growth is synonymous with Reproduction for which of the Following organisms
(A) Unicellular algae
(B) Amoeba
(C) Bacteria
(D) All of the above

Ans. D) All of the above

9. The basic unit of taxonomic hierarchy is
(A) Species
(B) Kingdom
(C) Class
(D) Phylum

Ans. A) Species

10. Axile placentation is present in
(A) Argemone
(B) Dianthus
(C) Lemon
(D) Pea

Ans. C) Lemon

11. Sweet potato is homologous to
(A) Turnip
(B) Potato
(C) Colocasia
(D) Ginger

Ans. A) Turnip

12. The botanical name of cauliflower is
(A) Brassica oleracea var. capitata
(B) Brassica campestris
(C) Brassica oleracea var. botrytis
(D) Brassica oleracea var. gemmifera

Ans. C) Brassica oleracea var. botrytis

13. Scientific names of plants are given by
(A) International code for Botanical nomenclature
(B) International code for biological plants
(C) Indian code for Botanical nomenclature
(D) International code for zoological nomenclature

Ans. A) International code for Botanical nomenclature

14. The name of a plant written on a Herbarium sheet is it’s
(A) Local name
(B) English name
(C) Botanical name
(D) All of the above

Ans. D) All of the above

15. The zoological name of the tiger is
(A) Mangifera indica
(B) Solanum tuberosum
(C) Solanum melongena
(D) Panthera Tigris

Ans. D) Panthera Tigris

Body Fluids, Digestive & Respiratory System MCQ

1. Which of the following gas is released Out during the process of respiration
(A) Oxygen
(B) Hydrogen
(C) Carbon dioxide
(D) None of the above

Ans. C) Carbon dioxide

2. Nyctalopia can occur due to the Deficiency of
(A) Vitamin A
(B) Vitamin C
(C) Vitamin K
(D) Vitamin B2

Ans. A) Vitamin A

3. What used to be described as Nissl’s Granules in a nerve cell are now Identified as
(A) Ribosomes
(B) Mitochondria
(C) Cell metabolites
(D) Fat granules

Ans. A) Ribosomes

4. Sickle cell anemia is due to
(A) Change of amino acid in a-chain of hemoglobin
(B) Change of amino acid in the b-chain of hemoglobin
(C) Change of amino acid in both a and b chains of hemoglobin
(D) Change of amino acid in either a or b- a chain of hemoglobin

Ans. B) Change of amino acid in the b-chain of hemoglobin

5. The terga, sterna, and pleura of the Cockroach body are joined by
(A) Muscular tissue
(B) Arthrodial membrane
(C) Cartilage
(D) Cementing glue

Ans. B) Arthrodial membrane

6. The basement membrane is made up of
(A) Epidermal cells only
(B) Endodermal cells only
(C) Both (a) and (b)
(D) No cell at all, but is a product of epithelial cells

Ans. D) No cell at all, but is a product of epithelial cells

7. The functional unit of the contractile System in striated muscle is
(A) Myofibril
(B) Sarcomere
(C) Z-lines
(D) Cross bridges

Ans. B) Sarcomere

8. Which of the following functions by Filtering and keeping the mucus and Dirt away from our lungs
(A) Cilia
(B) Bronchioles
(C) Hairs in the lungs
(D) All of the above

Ans. A) Cilia

9. Respiration in mature mammalian Erythrocytes are
(A) Linear
(B) Absent
(C) Anaerobic
(D) Aerobic

Ans. C) Anaerobic

10. Which is the principal cation in the Plasma of the blood
(A) Magnesium
(B) Sodium
(C) Potassium
(D) Calcium

Ans. B) Sodium

11. ATPase enzyme needed for muscle Contraction is located in
(A) Actinin
(B) Troponin
(C) Myosin
(D) Actin

Ans. C) Myosin

12. Which of the following is not a Characteristic feature of the Respiratory surface
(A) Dry
(B) Thin
(C) Permeable
(D) Moist

Ans. A) Dry

13. Stratum germinativum is an example Of which kind of epithelium
(A) Cuboidal
(B) Ciliated
(C) Columnar
(D) Squamous

Ans. C) Columnar

14. The life span of human WBC is Approximately
(A) Less than 10 days
(B) Between 20 to 30 days
(C) More than 4 months
(D) Between 2 to 3 months

Ans. A) Less than 10 days

15. A man with blood group A marries an AB Blood group woman. Which type of Progeny indicates that the man is not Homozygous
(A) AB
(B) B
(C) A
(D) I

Ans. B) B

Excretory System, Neural & Chemical Coordination MCQ

1. Iris is part of
(A) Sclerotic
(B) Choroid/uvula
(C) Choroid and retina
(D) Sclerotic and choroid

Ans. C) Choroid and retina

2. Which of the following radioactive Isotope is used in the detection of Thyroid cancer
(A) Iodine-131
(B) Carbon-14
(C) Uranium-238
(D) Phosphorus-32

Ans. A) Iodine-131

3. Vagus nerve iS
(A) X
(B) IX
(C) VII
(D) V

Ans. A) X

4. Which one of the following statements Is correct concerning kidney function regulation
(A) When someone drinks a lot of water, ADH release is suppressed
(B) Exposure to cold temperature stimulates ADH release
(C) An increase in glomerular blood flow stimulates the formation of Angiotensin II
(D) During summer when the body loses a lot of water by evaporation, the release of ADH is suppressed

Ans. A) When someone drinks a lot of water, ADH release is suppressed

5. The function of the iris is to

(A) Move the lens forward and backward
(B) Refract light rays
(C) Bring about movements of eyelids
(D) Alter the size of the pupil

Ans. D) Alter the size of the pupil

6. The uricotelic mode of passing out Nitrogenous wastes is found in
(A) Reptiles and Birds
(B) Birds and Annelids
(C) Amphibians and Reptiles
(D) Insects and Amphibians

Ans. A) Reptiles and Birds

7. If Henle’s loop were absent from the Mammalian nephron, which of the following is to be expected
(A) The urine will be more Concentrated
(B) The urine will be more dilute
(C) There will be no urine formation
(D) There will be hardly any change in the quality and quantity of urine formed

Ans. B) The urine will be more dilute

8. In ureotelic animals, urea is formed by
(A) Ornithine cycle
(B) Cori cycle
(C) Krebs cycle
(D) EMP pathway

Ans. A) Ornithine cycle

9. Melanin protects from
(A) UV rays
(B) Visible rays
(C) Infra-red rays
(D) X-rays

Ans. A) UV rays

10. The freshly released human egg has
(A) One Y- chromosome
(B) One X- chromosome
(C) Two X – chromosomes
(D) Both (a) and (b)

Ans. B) One X- chromosome

11. Which of the following endocrine Glands stores its secretion in the Extracellular space before discharging Into the blood
(A) Pancreas
(B) Adrenal
(C) Testis
(D) Thyroid

Ans. D) Thyroid

12. The function of oxytocin is to help in
(A) Growth
(B) Lactation
(C) Childbirth
(D) Gametogenesis

Ans. C) Childbirth

13. Which one of the following hormones Is a modified amino acid
(A) Epinephrine
(B) Progesterone
(C) Prostaglandin
(D) Estrogen

Ans. A) Epinephrine

14. Gonads develop from embryonic
(A) Ectoderm
(B) Endoderm
(C) Mesoderm
(D) Both (b) and (c)

Ans. C) Mesoderm

15. The layer of actively dividing cells of the Skin is termed as
(A) Stratum compactum
(B) Stratum corneum
(C) Stratum Malpighi/ stratum germinativum
(D) Stratum lucidum

Ans. C) Stratum Malpighi/ stratum germinativum

Mineral Nutrition and Photosynthesis MCQ

1. Stroma in the chloroplasts of higher Plant contains
(A) Ribosomes
(B) Chlorophyll
(C) Light-independent reaction enzymes
(D) Light-dependent reaction enzymes

Ans. C) Light-independent reaction enzymes

2. Which aquatic fern performs nitrogen Fixation
(A) Azolla
(B) Nostoc
(C) Salvia
(D) Salvinia

Ans. A) Azolla

3. Which one of the following is Represented by Calvin’s cycle
(A) Reductive carboxylation
(B) Oxidative carboxylation
(C) Photophosphorylation
(D) Oxidative phosphorylation

Ans. A) Reductive carboxylation

4. Which one occurs both during cyclic And non-cyclic modes of Photophosphorylation
(A) Involvement of both PS-I and PS-II
(B) Formation of ATP
(C) Release of 02
(D) Formation of NADPH

Ans. B) Formation of ATP

5. The enzyme involved in nitrogen Assimilation
(A) Nitrogenase
(B) Nitrate reductase
(C) Transferase
(D) Transaminase

Ans. A) Nitrogenase

6. Ferredoxin is a constituent of
(A) PS-I
(B) PS-II
(C) Hill reaction
(D) P-680

Ans. A) PS-I

7. Dark reactions of photosynthesis occur in
(A) Granite thylakoid membranes
(B) Stromal lamella membranes
(C) Stromal outside photosynthetic lamellae
(D) Periplastidial space

Ans. C) Stromal outside photosynthetic lamellae

8. The core metal of chlorophyll is
(A) Iron
(B) Magnesium
(C) Nickel
(D) Copper

Ans. B) Magnesium

9. Which one of the following elements in Plants is not remobilized
(A) Phosphorus
(B) Calcium
(C) Potassium
(D) Sulphur

Ans. B) Calcium

10. For its activity, carboxypeptidase Requires
(A) Iron
(B) Niacin
(C) Copper
(D) Zinc

Ans. D) Zinc

11. The first stable product of the fixation of Atmospheric nitrogen in leguminous Plants is
(A) NO2-
(B) Ammonia
(C) NO3-
(D) Glutamate

Ans. B) Ammonia

12. Formation of ATP in photosynthesis And respiration is an oxidation process That utilizes the energy from
(A) Cytochromes
(B) Ferredoxin
(C) Electrons
(D) Carbon dioxide

Ans. C) Electrons

13. Which technique has helped in the Investigation of the Calvin cycle
(A) X-ray crystallography
(B) X-ray technique
(C) Radioactive isotope technique
(D) Intermittent light

Ans. C) Radioactive isotope technique

14. During biological nitrogen fixation, the Inactivation of nitrogenase by oxygen Poisoning is prevented by
(A) Cytochrome
(B) Leghaemoglobin
(C) Xanthophyll
(D) Carotene

Ans. B) Leghaemoglobin

15. Which one of the following is not a Micronutrient
(A) Molybdenum
(B) Magnesium
(C) Zinc
(D) Boron

Ans. B) Magnesium

Plant Respiration, Growth & Development MCQ

1. Abscisic acid causes
(A) Stomatal closure
(B) Stem elongation
(C) Leaf expansion
(D) Root elongation

Ans. A) Stomatal closure

2. Mowing grass lawn facilitates better Maintenance because
(A) Wounding stimulates regeneration
(B) Removal of apical dominance and stimulation of intercalary meristem
(C) Removal of apical dominance
(D) Removal of apical dominance and promotion of lateral meristem

Ans. D) Removal of apical dominance and promotion of lateral meristem

3. Which of the following hormones can Replace vernalization
(A) Auxin
(B) Cytokinin
(C) Gibberellins
(D) Ethylene

Ans. C) Gibberellins

4. The main organelle involved in the Modification and routing of newly synthesized proteins to their Destinations is
(A) Chloroplast
(B) Mitochondria
(C) Lysosome
(D) Endoplasmic reticulum

Ans. D) Endoplasmic reticulum

5. Chlorophyll in the chloroplast is located in
(A) Grana
(B) Pyrenoid
(C) Stroma
(D) Both (a) and (c)

Ans. A) Grana

6. The function of the rough endoplasmic Reticulum is
(A) Fat synthesis
(B) Lipid synthesis
(C) Protein synthesis
(D) Steroid synthesis

Ans. C) Protein synthesis

7. The prokaryotic flagella possess
(A) Unit membrane-enclosed fiber
(B) Protein membrane-enclosed fiber
(C) ‘9+2′ membrane-enclosed structure
(D) Helically arranged protein molecule

Ans. D) Helically arranged protein molecule

8. The end product of the citric acid/Krebs cycle is
(A) Citric acid
(B) Lactic acid
(C) Pyruvic acid
(D) CO2 +H20

Ans. D) CO2 +H20

9. Leaf falls can be prevented with the Help of
(A) Abscisic acid
(B) Auxins
(C) Florigen
(D) Cytokinins

Ans. D) Cytokinins

10. Extranuclear inheritance is a Consequence presence of genes in
(A) Mitochondria and chloroplasts
(B) Endoplasmic reticulum and mitochondria
(C) Ribosomes and chloroplast
(D) Lysosomes and ribosomes

Ans. B) Endoplasmic reticulum and mitochondria

11. Gibberellins induce
(A) Flowering
(B) Production of hydrolyzing enzymes ingerminating seeds
(C) Cell division
(D) Hasten leaf senescence

Ans. B) Production of hydrolyzing enzymes ingerminating seeds

12. Cell wall shows
(A) Complete permeability
(B) Semi-permeability
(C) Differential permeability
(D) Impermeability

Ans. A) Complete permeability

13. Protein synthesis in an animal cell occurs
(A) Only on the ribosomes present in the cytosol
(B) Only on ribosomes attached to the nuclear envelope and endoplasmic reticulum
(C) On ribosomes present in the nucleolus as well as in the cytoplasm
(D) On ribosomes present in the cytoplasm as well as in mitochondria

Ans. D) On ribosomes present in the cytoplasm as well as in mitochondria

14. The end products of aerobic respiration are
(A) Sugar and oxygen
(B) Water and energy
(C) Carbon dioxide, water, and energy
(D) Carbon dioxide and energy

Ans. C) Carbon dioxide, water, and energy

15. The connecting link between glycolysis and the Krebs cycle is (before entering the Krebs cycle pyruvate changed to)
(A) Oxaloacetate
(B) PEP
(C) Pyruvate
(D) Acetyl Co-A

Ans. D) Acetyl Co-A

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