PYQ-NEET Practice Exam

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• In which part of the chloroplast do photosynthetic pigments primarily occur?
• What is the primary source of energy for cellular processes?
• What is the primary role of ribosomes within a cell?
• What does the association of histone H1 with a nucleosome indicate?
• The total momentum of incident and reflected radiation can be expressed by which formula?
• What is one of the factors that influence the barrier potential of a semiconductor junction?
• What is the basic building block of proteins?
• Which of the following cells is responsible for producing erythropoietin?
• Which type of plant is the most efficient converter of light energy into chemical energy?
• What did the Air Act amend in 1987 to include?
• What is the role of the pituitary gland in the endocrine system?
• What type of biological macromolecule is an enzyme?
• What is the formula to calculate radial nodes?
• What type of bond forms between water molecules?
• What is the defining characteristic of prokaryotic cells?
• What is the role of the large intestine in the digestive system?
• In which plant are both autogamy and geitonogamy prevented?
• What is adrenal virilism caused by?
• In terms of complex stability, which factor is significant?
• What is the main component of the cell membrane?
• What is the role of chlorophyll in the process of photosynthesis?
• Which part of the cell is primarily involved in protein synthesis?
• Which chemical is used to test the viability of seeds?
• What is the net gain of ATP molecules from each molecule of glucose during fermentation?
• Which class of enzymes catalyzes hydrolysis reactions?
• Which is the largest gland in the human body?
• What is the potential barrier of a silicon diode?
• In what structure within the cell does cellular respiration occur?
• Which of the following is NOT a function of epithelial tissue?
• What is the main difference between aerobic and anaerobic respiration?
• Which chemical element in hemoglobin is crucial for oxygen transport?
• What is the primary role of the kidneys in the human body?
• Which part of the neuron is primarily responsible for receiving signals from other neurons?
• What characterizes a carcinoma?
• What does the momentum transferred to a surface by radiation energy E that falls on it normally equal?
• What metal is known to form primarily colorless compounds?
• In terms of seed structure, the role of perisperm is primarily associated with?
• The ionization enthalpy of molecular oxygen is identical to which of the following elements?
• Which part of the human brain is responsible for regulating homeostasis?
• Which of the following is NOT a characteristic of amphoteric oxides?
• What is micropropagation?
• What cell structure is responsible for the insulation of nerve fibers?
• What did Schleiden propose about plants?
• Which organ in the human body is responsible for detoxification?
• Digestive enzymes belong to which class of enzymes?
• According to the Central Pollution Control Board, which particulate size is most harmful to human health?
• Which nucleotide base pairs with adenine in DNA?
• Which organelle is known as the "powerhouse of the cell"?
• What is the aleurone layer formed by?
• In which part of the brain is the cerebellum located?
• What is the significance of testing seed viability with 2,3,5 triphenyl tetrazolium chloride?
• Which ecosystem is known to have the maximum biomass?
• What is the primary site of nutrient absorption in the digestive system?
• What is the function of hemoglobin in red blood cells?
• In what part of the plant does photosynthesis primarily take place?
• What is the principal organic constituent of a living cell in order of relative abundance?
• Which hormone is primarily produced by the juxtaglomerular cells of the kidney?
• Capacitance in terms of sperm refers to changes in which context?
• Who was the first person to saw and describe a living cell?
• What is the pH range of a neutral solution?
• Which pair of compounds are examples of amphoteric oxides?
• What type of respiration occurs in the presence of oxygen?
• Hemoglobin is a complex of which metal ion?
• Which component is essential for the functioning of pyruvate dehydrogenase?
• In which cellular structure is double stranded circular DNA found?
• Which of the following wavelengths of light is least absorbed by chlorophyll a?
• What is the formula to calculate total lung capacity?
• What is the primary function of epithelial tissue?
• What is the structural unit of bone called?
• What is the equivalent term for megasporangium?
• In which type of ecosystem is stratification shown best?
• The barrier potential of a pn junction depends on which of the following factors?
• Which structure in the ear is responsible for balance?
• What is the main function of air sacs in birds?
• What is the size of pleuropneumonia-like organisms?
• What significant discovery is associated with Schwann?
• What is the function of the spleen in the lymphatic system?
• What is the DNA-binding sequence that RNA polymerase forms during transcription?
• What is the difference between innate and adaptive immunity?
• Which type of plant relies on animal vectors for pollination?
• What induces early seed production in Pinus?
• Which of the following seeds is primarily known for containing a large perisperm?
• Which hormone regulates blood sugar levels?
• What immune cells are primarily responsible for antibody production?
• What is the role of erythropoietin in the body?
• A flower developed from hypanthodium inflorescence is known as?
• In ecosystems, which has the highest gross primary productivity?
• Where is double stranded circular naked DNA commonly observed?
• What is the formula for the least count of a measuring instrument?
• What process do cells undergo to divide and produce two identical daughter cells?
• What is the characteristic of perisperm compared to endosperm?
• A liquid does not wet a solid surface if the angle of contact is:
• What is the main function of the myelin sheath?
• What does hypersecretion of sex corticoids lead to in an individual?
• What is considered the strongest oxidizing agent among the halogens?
• What are the two main types of genetic inheritance?
• What type of cells have a membrane-bound nucleus?
• What is the SI unit of the gravitational constant G?
• How many ovules are found in each ovary of wind-pollinated flowers?
• In Citrus, apomictic embryos arise from which type of tissue?
• Photorespiration is also known as which of the following?
• Which molecule is commonly referred to as the energy currency of the cell?
• Which muscle type is involuntary and found in the walls of the heart?
• Which vitamin is crucial for maintaining healthy vision?
• What is the vegetative propagule in Agave?
• Which layer of the skin is primarily responsible for sensation?
• What is the main purpose of the vegetative reproduction process in plants like Agave?
• What is the primary function of chlorophyll in plants?
• Cyclic photophosphorylation occurs in which part of the chloroplast and produces what?
• What is the main toxin produced during anaerobic respiration in animals?
• Which type of joint allows for the greatest range of motion?
• What is the fundamental unit of life?
• Which method is most commonly used in micropropagation?
• What occurs during the capacitation of sperm?
• What is the primary component of the cell wall in plants?
• How are traits primarily passed from parents to offspring?
• What is the primary function of red blood cells?
• How many angular nodes are present in the 3s orbital?
• Which transition metal is known for having a low density?
• What is the most abundant type of RNA found in animal cells?
• Which structure in plant cells is responsible for photosynthesis?
• Which vitamin is primarily synthesized in the skin upon exposure to sunlight?
• What is the role of neurotransmitters in the nervous system?
• Which structure is surrounded by a callose wall?
• What is the primary function of gas vacuoles in bacteria?
• Who coined the term "ecosystem"?
• Which organ system is tasked with producing hormones?
• How can the length of DNA be calculated?
• After how many years of formation of Earth did life appear?
• What is the minimum doping amount required for a semiconductor to create a pn junction?
• During aerobic respiration, which element does pyruvate dehydrogenase require?
• Which ecosystem is characterized by low stability and high resilience?
• What amino acid is encoded by the codons AAA and AAG?
• Which male gametophyte has the least number of cells?
• Who is credited with the discovery of RNA polymerase?
• What is the dark reaction of photosynthesis also known as?
• Which chelating ligand is effective in removing excess copper and iron from the body?
• How does the Air Act of 1987 impact environmental regulation?
• What is the primary function of the respiratory system?
• Which plant hormone is responsible for promoting seed germination?
• Facial isomerism is associated with which type of complex?
• Which cellular structure is responsible for energy production?
• What is the primary function of a spherometer?
• What causes HF to have a high boiling point?
• What is the factor on which the rate of photosynthesis is independent?
• What is the name for the process by which energy is produced in the mitochondria?
• What is the correct sequence of phases in a mitotic cycle?
• What is atomic standard time based on?
• In birds, what are air sacs primarily associated with?
• Which ecosystem is likely to have the lowest gross primary productivity?
• Where does capacitation occur during reproduction?
• How many chambers does the human heart have?
• Which blood component is primarily responsible for clotting?
• What is the primary function of the liver in metabolism?
• What is the genetic material in bacteria?
• What term describes uridine when it is present only in RNA?
• Which of the following ecosystems is most easily damaged but can recover over time?
• What represents displacement at the nth second in motion equations?
• Which seed contains endosperm, perisperm, and caruncle?
• What is considered the most stable ecosystem?
• In the context of cellular respiration, what is the main purpose of pyruvate dehydrogenase?
• What is the basic unit of heredity?
• Which property of fluorine contributes to its status as the strongest oxidizing agent?
• What type of tissue is carcinoma primarily associated with?
• What type of inclusions are found in blue-green, purple, and green photosynthetic bacteria?
• What is the primary function of the integumentary system?
• In which plant do the sepals not wither after fertilization?
• What is the viability duration for pollen mentioned in the context provided?
• Who discovered transformation in bacteria?
• Which family does Poaceae, commonly known for cereals, belong to?
• What is the process by which plants convert sunlight into chemical energy?
• In a pond ecosystem, what shape does the pyramid of number typically take?
• What is a primary characteristic of plant cells mentioned in the context of Schwann and Schleiden's work?
• Which type of pollen grains are present in Pinus?
• What is the function of the vascular system?
• Which element has not reacted with fluorine?
• By what mechanism do vaccines provide immunity to diseases?
• Which antibiotic is known to inhibit the interaction between tRNA and mRNA during bacterial protein synthesis?
• What is the source of CO2 for photosynthesis during the day in CAM plants?
• In which group of plants do male and female gametophytes not have an independent existence?
• What is the fundamental role of chelating agents like D-penicillamine?
• What is the average resting heart rate for an adult?
• Which of the following plants is known to assure seed setting even in the absence of pollinators?
• Which fruit has edible cotyledon and testa respectively?
• What structure in the neuron facilitates the transmission of electrical signals away from the cell body?
• At which wavelength is light most absorbed by chlorophyll a?
• Among the following, which is considered the most stable complex?
• In what phase of mitosis do chromosomes align at the cell's equatorial plane?
• In which plant would you most likely find apomictic embryos derived from maternal tissues?