जीव विज्ञान – Zoology – Zoology MCQ

जीव विज्ञान – Zoology: प्रश्न र उत्तर

सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।

सही: ० / ०

91. Which of the following cellular structures is MOST directly involved in the process of aerobic respiration generating ATP?

    कA) Ribosomes – Responsible for protein synthesis. खB) Golgi Apparatus – Modifying proteins and lipids. गC) Mitochondria – Containing the electron transport chain. घD) Endoplasmic Reticulum - Transporting materials within the cell.
    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    छलफल / प्रश्न उत्तरमा गल्ती छ

    पठाउनुहोस्

    टिप्पणी जाँचपछि मात्र देखिन्छ।

92. In mammals, which hormone is primarily responsible for maintaining calcium homeostasis and regulating bone mineralization?

    कA) Insulin - Directly affecting bone cell activity. खB) Parathyroid Hormone (PTH) – Increasing blood calcium levels. गC) Thyroxine – Primarily involved in metabolic regulation. घD) Adrenaline - Affecting calcium absorption from the gut.
    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    छलफल / प्रश्न उत्तरमा गल्ती छ

    पठाउनुहोस्

    टिप्पणी जाँचपछि मात्र देखिन्छ।

93. Which of the following best describes the role of the myelin sheath in nerve impulse transmission?

    कA) It increases the resistance to electrical conductivity. खB) It insulates the axon, allowing for faster signal propagation. गC) It directly generates the electrical impulses in neurons. घD) It prevents neurotransmitters from binding to receptors.
    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    छलफल / प्रश्न उत्तरमा गल्ती छ

    पठाउनुहोस्

    टिप्पणी जाँचपछि मात्र देखिन्छ।

94. The process of metamorphosis observed in amphibians, such as tadpoles transforming into frogs, primarily involves changes in which layer of tissues?

    कA) Epidermis – Primarily affecting skin pigmentation. खB) Mesoderm – Responsible for limb development and organ formation. गC) Ectoderm – Controlling nervous system development. घD) Endoderm – Influencing digestive system differentiation.
    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    छलफल / प्रश्न उत्तरमा गल्ती छ

    पठाउनुहोस्

    टिप्पणी जाँचपछि मात्र देखिन्छ।

95. In *Taenia solium*, the male tapeworm is distinguished from the female based on its lack of a __________.

    कoviduct खpenis गscolex घtestes
    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    छलफल / प्रश्न उत्तरमा गल्ती छ

    पठाउनुहोस्

    टिप्पणी जाँचपछि मात्र देखिन्छ।

96. Which of the following features is characteristic of cnidarians like jellyfish?

    कEndoskeleton made of calcium carbonate खSegmented body with repeated units गRadial symmetry with two tissue layers घComplex nervous system with a centralized brain
    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    छलफल / प्रश्न उत्तरमा गल्ती छ

    पठाउनुहोस्

    टिप्पणी जाँचपछि मात्र देखिन्छ।

97. The symbiotic relationship between nitrogen-fixing bacteria and legumes involves the conversion of atmospheric nitrogen into which usable form?

    कGlucose खEthanol गAmmonium घCarbon Dioxide
    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    छलफल / प्रश्न उत्तरमा गल्ती छ

    पठाउनुहोस्

    टिप्पणी जाँचपछि मात्र देखिन्छ।

98. Which of the following adaptations allows earthworms to thrive in their terrestrial environment?

    कPossession of scales for waterproofing खDevelopment of a thick epidermis with mucus glands गA streamlined body shape for efficient swimming घSpecialized gills for gas exchange
    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    छलफल / प्रश्न उत्तरमा गल्ती छ

    पठाउनुहोस्

    टिप्पणी जाँचपछि मात्र देखिन्छ।

99. The process of facilitated diffusion involves the assistance of which molecule to move substances across a cell membrane?

    कATP synthase खchannel proteins गphospholipids घreceptor proteins
    💬 टिप्पणी / गल्ती रिपोर्ट (०)

    छलफल / प्रश्न उत्तरमा गल्ती छ

    पठाउनुहोस्

    टिप्पणी जाँचपछि मात्र देखिन्छ।

100. The process of formation of male gametes (sperm) from diploid germ cells is called: (a) Meiosis (b) Mitosis (c) Fertilization (d) Cloning

     क(a) Meiosis ख(b) Mitosis ग(c) Fertilization घ(d) Cloning
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।