Biology : One-Liner for all Competitive Exam 2025

Biology : One-Liner for all Competitive Exam 2025. Compiled from different websites for consolidated last-minute revision for all Competitive examinations

BIOLOGY  SET- I

• The term ‘Sericulture’ is related to           – Silk farming
• Who is called the father of taxonomy      –Carl Linnaeus
• The disease related with apple is known as       – Fire blight 
• Lichen is an organism which monitors     – Air pollution
• People with which blood groups are considered as universal recipient- AB+
• Robert Hooke discovered   – Cell
• Beriberi is a disease caused due to deficiency of         – Vitamin B1
• Bile is secreted by the        – Liver
• Excessive curvature of eye lens leads to           –Myopia
• Which type of lens is required for correcting the vision of a person with myopia         – Diverging lens
• Which of the plants belongs to Bryophyta          –Marchanta
• Which is compared of nerve fibres that mediate reflex actions and that transmit impulses to and from the brain          – Spinal cord
• What ingredient is put in bread to make it rise   –Yeast
• Botanical name of banyan tree is  – Ficus Benghalensis
• The cause of Hepatitis A is a        – Virus
• The pH range of a human body is –         7.35 – 7.45
• The pistil in the flower is     – A female reproductive part
• Taxol is extracted from which plant          –Yew
• Which is the fat-storing tissue in our body          –Adipose tissue
• Which essential element is used in the synthesis of proteins and other compounds in plants  –Nitrogen
• Small bead-like structure inside the ovary of flowers is called –Ovules
• Some organisms use simple food material obtained from inorganic sources in the form of carbon dioxide and water. What are these organisms known as – Autotrophs
• What protects the inner lining of the stomach from the action of acid, under normal conditions   – Mucus
• In which part of a neuron is information acquired-        Dendrite
• The zoological name of the common housefly is          – Musca Domestica
• The smallest unit of the life capable of independent existence      –Cell
• Example of non-infectious disease          – High Blood Pressure
• Which gas is needed for photosynthesis- Carbon dioxide
• Ribosomes make     –Proteins
• The female Anopheles mosquito is a transmitter of      – Malaria
• Each kidney has a large of filtration units called           –Nephrons 
• Which is the largest artery in the human body-  Aorta
• When there is a lack of oxygen in our muscle cells, the breakdown of pyruvate takes place and it is coverted into          –Lactic acid and energy

• Which receptors are located on our tongue       –Gustatory
• Blood is a type of –  Connective tissue
• Which vitamin activates proteins and calcium essential for blood clotting-Vitamin K
• Which terms best describes the biological study of animal behaviour     – Ethology
• An instrument used for measuring growth in plants is known as a – Crescograph
• In human beings, which has a high affinity for oxygen-          Haemoglobin
• In a plant, the seed contains the embryo which develops into a seedling under appropriate conditions. This process is known as-         Germination
• Theophrastus is called the father of-       Botany
• Iodine is essential for the synthesis of –   Thyroxine
• Which is the energy currency for most cellular processes- ATP
• Which  plant group bears naked seeds – Gymnosperms
• Lysosomes are a kind of waste disposal system of the cell. They help to keep the cell clean by digesting any foreign materials as well as worn –          out cell organelles.
• Which  is a pigment present in human blood that carries oxygen from our lungs to all parts of the body-           Haemoglobin
• Kidney failure is treated periodically on a kidney machine. The process is known as –       Hemodialysis
• Which type of sugar is responsible for sweetening in fruits – Fructose
• Which  fluid carries absorbed fat from intestine and drains excess fluid from extra cellular space back into the  blood- Lymph
• Which acid is produced by human’s stomach –          Hydrochloric acid
• Green plants and certain bacteria manufacture their own food. Which nutrition process do they adopt-           Autotrophic Nutrition
• Which is the correct sequence of steps in Digestive systems-  Ingestion , Digestion ,Absorption, Egestion
• Near-sightedness in humans is called –   Myopia
• Which is responsible for dwarfism in humans-   Pituitary
• Which unicellular organism causes kala-azar,-             Leishmania
• Human growth hormone is secreted by which gland – Anterior lobe of pituitary gland
• Which disease is caused by the deficiency of protein in our body –     Kwashiorkor
• Which part of the human body is formed by the fusing of the illium, ischium and the pubis- Hip bone
• Alignment of chromosomes in the center of the cell at the equatorial plate constitutes which stage of mitosis –           Metaphase
• Who gave the term ‘homo sapiens’-        C. Linnaeus

• Which is the largest gland in the human body-   Liver
• Which is the longest bone in the human body-   Femur
• Which are present only in plant cells –     Plastids
• Which causes kala-azar –   Protazoa
• When respiration takes place even in the absence of oxygen, it is called Anaerobic  respiration.
• Mitochondria  are known as the powerhouse of the cell.
• Blood has a fluid matrix called  Plasma  in which RBCs, WBCs, and platelets are suspended
• Which part of the muscular system attaches bone to bone – Ligament
• A baby receives its nutrition in the mother’s womb through the – Placenta
• Which is a major female sex hormone –  Estrogen
• Rods and cone cells are found in –          Eyes
• Beassica Campestris is the botanical name of which plant –Field mustard
• Ring worm is a Fungal type of disease.
• What is the generic name given to members of the cat family –          Feline
• Pseudopodia are finger-like extensions on –  Amoeba
• What can humans NOT digest –    Cellulose
• The correct order of the four stages of the lifecycle of mosquitoes is – Egg, larva, pupa, imago
• After digestion, protein is converted into –  Amino acids
• Cytoplasm is a jelly-like fluid that is present between  – Nucleus and cell membrane
• What caused Bird Flu –      H5N1 virus
• The ultimate source of energy in plants is – Sunlight
• What are the 7 micronutrients for plants – Iron (Fe), boron (B), manganese (Mn), molybdenum (Mo), zinc (Zn), chlorine (Cl) and copper (Cu).
• The release of which hormone causes simultaneous increase in heartbeat and breathing rate –          Adrenaline
• How many heart chambers do mammals have – Four
• Which are the two main organs in the human body where the magnetic field produced is significant –          Heart and brain
• Which stored in the form of starch which serves as an internal energy reserve to be used as and when required by the plant  – Carbohydrates
• Pencillium is a/an   Fungi
• Which vitamins in rich in yeast – Vitamins B
• Which of polluted air causes Hay fever – Pollen
• The ephedra plant is grouped under –     Gymnosperm
• If untreated, HIV can lead to – AIDS
• Deficiency of which causes blindness and poor vision –          Vitamin A
• Which gas is produced during the process of photosynthesis –      Oxygen
• Which is the outermost covering of the cell that separates the contents of the cell from its external environment –          Plasma membrane

• Which gases in the atmosphere is used up in three processes: combustion, respiration and in the formation of oxides of nitrogen  –                  oxygen
• What is the function of alveoli- To provide a surface where exchange of gases takes place
• The laws of inheritance were discovered by –    Gregor Mendel
• The study of cells is called –         Cytology
• Which level of classification of organisms comes between ‘Family’ and ‘Species’ –   Genus
• Name the plant from which the anti-malarial drug Quinine is extracted –Cinchona
• Where in the body is villi founded –         Small intestine
• What kind of a resource is water –           Cyclic
• Which part of a plant is responsible for transporting water from the roots of the plant to the rest of the plant  –           Xylem tissue
• Which is the edible part of a potato plant –         Stem
• The fungus Puccinia graminis causes-    Black rust in wheat
• Which is a malaria parasite-         Plasmodium
• Animals often blend in with their surroundings for protection. Which is –Chameleons
• All the involuntary actions, including blood pressure, salivation and vomiting are controlled by the –  Medulla
• The power of accommodation of the eye usually decreases with ageing. This condition is known as –          Presbyopia
• Gustatory receptors are responsible for detecting –          Taste
• Gastric glands produce the enzyme Pepsin during digestion, which digests proteins.
• Plants having no vascular system are known as –          Bryophytes
• A single-celled fertilised egg is called a/an –       Zygote
• Involuntary actions such as breathing, salivation and peristalsis are controlled by the – Medulla oblongata
• Megaloblastic anaemia is caused by the deficiency of which vitamin-         Vitamin B9
• Which is a disease caused by bacteria-   Anthrax
• Synapse is the point at which a nervous impulse passes from- One neuron to another
• To which family does the ‘Touch-me-not’ plant belong –          Mimosaceae
• In a human body, salts are transported by –       Blood
• For which disease/disorder is tranquilizer normally administered – Anxiety
• What is a herbicide – 2,4-D

• Vitamin A  has three active forms:retinal, retinol and retinoic acid .
•  What is the function of insulin in the human body- It regulates how the body uses and stores glucose and fat
• Which one is a Biological catalysts –       Enzymes
• Blood has a fluid matrix called Plasma , in which RBCs, WBCs and platelets are suspended.
• Which of these hormones stimulates uterine contractions and dilation of the cervix – Oxytocin
• Name the elements that are required for photosynthesis- Carbon dioxide, water and sunlight
• Which pigments are responsible to determine the colours of fruits and vegetables-     Anthocyanins
• Which sets of chromosomes lead to the birth of a girl child – XX
• What is the common name of E300 –      Viamin C
• Which phylum of animals have jointed legs –          Arthopoda
• Which come under Gregor Mendel’s Law of Inheritance –Law of Dominance
• Homologous organs are those organs which have the same basic structural design and orgin but have different functions.
• The organs having the same functions but different in structure, origin and constituting parts are called  –  Heterologous organs.
• Sexually reproducing individuals have  two  copies of genes of the same trait.
• Corals are marine invertebrates within the class Anthozoa of the phylum –Cnidaria
• A complete set of nuclear DNA in an organism is called –          Genome
• ‘Hydroponics’ refers to the kind of farming in which – Plants are grown in mineral nutrient solutions and without soil
• Which is a basic structural and functional unit of the nervous system –Neutrons
• Which parts allows light to enter the human eye –          Cornea
• Hypermetropia can be corrected by using –       Convex lenses
• When does aerobic respiration take place- Breakdown of glucose with the use of oxygen
• The father of modern botany is –   Carl Linnaeus
• Who coined the term ‘protoplasm’-  Johann Evangelist Purkinje
• The average weight of an adult human heart is about-           300 gm
• Name one  Saprophytic fungus –  Penicillium
• The concentration of which plant hormone is highest at the top of the plant and decreases as you get closer to the roots-      Auxin
• What is basic function of estrogen – To regulate the menstrual cycle
• Crocodiles have a Four chambered  heart.
• Sleeping sickness is caused by –  Tsetse Fly