Biology — MPSC PYQ

योग्य जोड्या लावा : अ. मोनोसॅकराइड ब. डायसॅकराइड क. ट्रायसॅकराइड ड. पॉलीसॅकराइड Match the correct pairs : A. Monosaccharide B. Disaccharide C. Trisaccharide D. Polysaccharide

Monosaccharide matches with Glucose (iii), Disaccharide matches with Sucrose (iv), Trisaccharide matches with Raffinose (i), and Polysaccharide matches with Starch (ii).

खालीलपैकी कोणते प्राणी एका वर्गातील आहेत ?

Torpedo (electric ray), Pristis (sawfish), Hippocampus (seahorse), and Anabas (climbing perch) all belong to the animal group Pisces (fishes).

शंखशास्त्राचा अभ्यास म्हणजे कशाचा अभ्यास ? Conchology is the study of what ?

Conchology is the scientific study of mollusc shells, making it a specialized branch of malacology.

मोलुस्का वर्गीय प्राणी मृदूकाय असतात आणि ते खालील वैशिष्ट्ये धारण करतात : Phylum Mollusca contains soft bodied animals characterized of : वरीलपैकी कोणते विधान/विधाने बरोबर आहेत ? Which of the statements given above is/are correct ?

Molluscs are the second largest phylum of invertebrate animals. They are bilaterally symmetrical, triploblastic, and possess a muscular foot for locomotion, but they are not exclusively terrestrial as many are aquatic (marine and freshwater).

प्रकाश-संश्लेषणामध्ये प्रकाशावर आधारित प्रक्रियेचे महत्त्वाचे कार्य कोणते आहे ? What is the principal function of the light-dependent reactions of photosynthesis ?

The light-dependent reactions of photosynthesis capture solar energy to generate energy-rich molecules NADPH and ATP.

एन्झायमचे अग्रदूत ________ हे आहेत. वरीलपैकी कोणते पर्याय/पर्याये बरोबर आहे/त ? ________ are precursors of enzymes. Which of the option given above is/are correct ?

Zymogens (or proenzymes) are inactive precursors of enzymes that require biochemical change (such as hydrolysis of a activating peptide) to become active enzymes.

खालीलपैकी कोणती विधाने बरोबर आहेत ? Which of the following statement/s is/are correct ?

Enzymes are proteinaceous organic catalysts that accelerate biochemical reactions. Their activity is heavily dependent on temperature (denaturing at high temperatures and slowing down at low temperatures), and amylase specifically acts on starch.

व्हायराईड्स खालीलपैकी कोणत्या तीन विशेष गुणधर्माद्वारे ओळखल्या जातात ? / Viroids are identified on the basis of which of the following three characteristic features?

Viroids are infectious agents that are much smaller than viruses, consist of a short circular single-stranded RNA molecule, and infect plant cells. Unlike viruses, they lack a protein coat (capsid).

खालीलपैकी कोणते पदार्थ मातीचे घटक आहेत ? / Which of the following substances are components of soil?

Soil is a complex mixture consisting of components like stones, sand, fine soil, decomposed organic matter (humus), chemical substances, water, and air.

प्राणीवर्गीकरणासाठी खालीलपैकी कोणती पायरी वापरली जाते ? / Which steps of taxons are followed for classification of animals ?

The correct hierarchical taxonomic classification sequence for animals from broadest to most specific is: Kingdom -> Phylum -> Class -> Order -> Family -> Genus -> Species.

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अनावृत्त बीजधारी वनस्पतीमध्ये अतीसूक्ष्म बीजे ____________ ह्यामध्ये तयार होतात. In gymnosperms, microspores are produced in ____________

In gymnosperms, microspores (pollen grains) are produced inside the microsporangium which is borne on the microsporophyll.

खालील जोड्या जुळवा (योग्य पर्याय निवडा) / Match the following (use correct codes) :

Aristotle is the Father of Biology, Theophrastus is the Father of Botany, Hippocrates is the Father of Medicine, and Gregor Johann Mendel is the Father of Genetics.

जगातील सर्वात मोठा अपृष्ठवंशीय कणाहीन प्राणी _________ आहे. The largest invertebrate, in a spineless creature, in the world is _________.

The colossal squid (Mesonychoteuthis hamiltoni) is widely recognized as the largest invertebrate in the world by mass, surpassing the giant squid.

रसायनांपासून स्वतःचे अन्न तयार करणारे जीवाणू (स्वयंजीवी) कोणत्या रसायनांचे विघटन करून ऊर्जा मिळवतात ? Chemosynthetic bacteria obtain energy by oxidizing ___________ chemical compounds.

Chemosynthetic autotrophic bacteria obtain energy by oxidizing inorganic chemical compounds like hydrogen sulfide, ammonia, or iron compounds in the absence of sunlight.

खालील जोड्या जुळवा : Match the following :

Matching respiratory pigments to their correct classification: Haemoglobin (II), Chlorocruorin (I), Hemerythrin (III), Haemocyanin (IV), yielding sequence II, I, III, IV.

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जेव्हा मधमाशी एका फुलांनतर दुसऱ्या फुलास भेट देते, तेव्हा कोणती प्रक्रिया होते? When honey-bees visit from one flower to another, they carry out the process of

When honeybees move from one flower to another, they transfer pollen grains, successfully carrying out the process of pollination.

दोन नावे (बायोनोमिअल) देण्याची वर्गीकरण पद्धती कोणी सुचविली ? The binomial system of classification was given by

Carl Linnaeus introduced the binomial nomenclature system of biological classification, giving each organism a two-part scientific name (genus and species).

लायकेनच्या संदर्भात खालीलपैकी कोणते विवरण बरोबर आहे ? Which description is correct for Lichens ?

Lichens are a symbiotic association between algae (phycobiont) and fungi (mycobiont), where both organisms benefit mutually.

वर्गीकरण तत्त्वानुसार कोणते वर्गीकरण योग्य आहे ? Which is the correct group from the taxonomic point of view ?

Phylum Mollusca includes organisms like Pila (apple snail), Dentalium (tusk shell), and Sepia/Cutlefish, as well as forms like 'Dentalium/olas' (often spelled as 'Dentalium' or similar mollusks). Thus, 'फोलास, पायला, कटलफिश' represents a correct taxonomic group of Mollusca.

खालीलपैकी कोणत्या उपयोजित जीवशास्त्राच्या शाखा आहेत ? Which of the following are branches of applied biology ?

Applied biology encompasses branches that apply biological knowledge to practical fields like agriculture, medicine, and pharmacology. Microbiology is a core/basic biological science.

कोणत्या हरनाने रामायानातील सीतेला भुरळ पाडली होती ? / Which deer is said to have enticed Ramayan's Sita ?

MPSC's official answer is the spotted deer (chital). In the Ramayana, Maricha takes the form of a golden deer with silver spots to lure Sita, which is why it is identified with the spotted deer.

खालीलपैकी कोणता पिष्टमय पदार्थ डायसॅकराइड आहे ? Which of the following carbohydrates is a disaccharide ?

Sucrose is a disaccharide formed by the combination of two monosaccharides, glucose and fructose. Glucose and fructose are monosaccharides, while cellulose is a polysaccharide.

प्रजातींची संख्या जगतात सर्वात जास्त आहे. have the largest number of species in the world.

Insects comprise the largest number of species among all living organisms on Earth, accounting for over half of all known species.

फळांच्या व भाज्यांच्या वितंचकीय तांबसीकरणास तपकिरीपणा कारणीभूत मुख्य वितंचक कोणते ? The key enzyme involved in enzymatic browning of fruits and vegetables is

Polyphenol oxidase (PPO) is the key enzyme responsible for the enzymatic browning (turning brown when cut or exposed to air) of fruits and vegetables.

परपोषी जीवामधील, मुख्यतः सूक्ष्मजीव व बुरशी मृत पेशीद्रव्यातील क्लिष्ट संयुगे फोडून त्याचे सोप्या घटकात रूपांतर करतात जे इतर जीवांना उपयुक्त ठरतात त्या परपोषीजीवांना ________ म्हणतात. / Heterotrophic organisms, chiefly bacteria and fungi that breakdown the complex compounds of dead protoplasm and release simple usable substances for other organisms are :

Heterotrophic organisms like bacteria and fungi that break down dead organic matter into simpler substances are known as decomposers or saprophytes.

वनस्पतींना द्विनामपद्धती कोणत्या वनस्पती शास्त्रज्ञाने सुरू केली ? / Which Botanist introduced the 'Binomial' nomenclature to the plants ?

Carolus Linnaeus introduced the Binomial Nomenclature system for naming plants and animals.

कोणती प्राणी पेशी मेदाचे संश्लेषण, संग्रहण आणि चयापचय करते ? / Which animal tissue synthesizes, stores and metabolizes fat ?

Adipose tissue is a specialized connective tissue that functions primarily in the synthesis, storage, and metabolism of fat (lipids) in animals.

विषाणू (व्हायरस) ______ असतात. / Viruses are :

Viruses are obligate intracellular parasites, meaning they are non-cellular infectious agents that can replicate only inside the living cells of organisms.

नायट्रोजन स्थिरीकरण मध्ये मूलभूत गरजेचे घटक नमूद करा. The fundamental requirements for nitrogen fixation are :

Biological nitrogen fixation fundamentally requires the enzyme nitrogenase, the electron donor ferredoxin, and ATP for energy. Aerobic conditions are generally unfavorable since nitrogenase is sensitive to oxygen.

प्रथनांच्या निर्मितीत कुठल्या RNA चे महत्त्वाचे कार्य आहे ? In protein synthesis, which RNA plays an improtant role ?

Messenger RNA (mRNA) plays the primary and most direct role in protein synthesis by carrying genetic instructions from DNA to the ribosomes.

खालील संप्रेकापैकी कोणते विसंगत आहे ? / Which of the following hormones is odd ?

Glucocorticoids, progesterone and testosterone are all steroid hormones, made from cholesterol by the adrenal cortex and the gonads. Insulin is a protein (peptide) hormone secreted by the beta cells of the pancreas, so it is the odd one out.

खालीलपैकी कशास एंजाइमस्चा को-फॅक्टर असे म्हणता येईल ? / Which of the following may be called as co - factor of an enzyme ?

Co-factors are non-protein chemical compounds or metallic ions that are bound to an enzyme and are required for the enzyme's biological activity.