Questions and Answers
Frogs are beneficial to mankind because they:
Select the odd one out of the following with respect to the male reproductive system of Rana tigrina.
Which of the following is an incorrect pair?
Choose the correct answer based on the assertion A and reason R regarding frogs. Assertion A: Frogs have a long alimentary canal. Reason R: Frogs are carnivores.
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Which of the following is involved in functions like forming a diffusion boundary?
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Select the incorrect statement with respect to Rana tigrina.
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_______ is present beneath the skin.
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Which of the above statements regarding Rana tigrina are correct?
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Given below are two statements. Statement I: Blood contains RBCs, WBCs, platelets, and fiber-secreting cells. Statement II: Arrival of the disturbance at the neuron’s endings triggers events that may cause stimulation or inhibition of adjacent neurons. Choose the most appropriate answer.
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Distance between points (2, 3, -7) and (-2, 0, 5) is:
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Convert angle from radian to degree: π/2 rad.
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If y = x + 4x^3 - 8x^2 + 4, then find dy/dx.
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Find the solutions of the equation: 2x^2 + 3x - 2 = 0.
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Find the sum of 1 + 1/3 + 1/9... up to ∞ terms.
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What is the value of log₂ 16?
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If cos θ = 4/5, then find the value of tan θ.
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Find the value of cos(330°).
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If sin θ + cos θ = 7/8, then find tan θ.
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Oxidation state of oxygen is (−1) in:
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Number of atoms present in 6.8 g of NH3 (Molar mass = 17 g/mol):
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The maximum number of molecules present in 11.2 L of H2 gas at STP:
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Which of the following is not a redox reaction?
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The empirical formula of a compound is CH2O, having molecular mass 120. What is the molecular formula?
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A specialised differentiated form of cell membrane called mesosome is the characteristic of:
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Choose the odd one out related to the examples of prokaryotic cells:
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The four basic shapes of bacteria includes all except:
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Movement of water by diffusion in cell membrane is called:
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Which concentration term is temperature independent?
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4 g of hydrogen is ignited with 4 g of oxygen, what is the amount of water formed?
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Study Notes
Short Practice Test Overview
- Duration: 60 minutes, covering a total of 48 questions.
- Maximum Marks: 192.
- All questions are compulsory; each correct answer awards 4 marks, while 1 mark is deducted for incorrect responses.
- No electronic devices or texts are allowed in the examination room.
Physics Topics
- Basic Maths & Calculus; concepts of distance between points and slope calculations.
- Understanding the relationship between momentum and mass for constant kinetic energy.
Chemistry Topics
-
Redox Reactions:
- Fundamental concepts of oxidation and reduction, including the classical idea and electronic concepts.
- Oxidation numbers and their applications in nomenclature and reactions.
- Identification of non-redox reactions and stoichiometric calculations of reagent amounts like NaOH and H2SO4.
- Empirical and molecular formulas determination, and concepts regarding atomic mass.
Botany Topics
- Definition and functions of a cell, covering key elements such as cell theory and differences between prokaryotic and eukaryotic cells.
- Importance of structures like mesosome found in prokaryotic cells.
- Recognition of primary and secondary cell walls in plant cells.
Zoology Topics
- Overview of animal tissues, focusing on types like epithelial, connective, muscular, and nervous tissues.
- Specifics related to the reproductive structure of frogs and their ecological significance.
- Matching common tissue types to their functions and locations in the body.
General Exam Instructions
- Candidates must fill personal details accurately on the test booklet's cover page.
- Ensure proper marking on the OMR answer sheet using blue/black ballpoint pens; avoid stray marks.
- Complete the test booklet handover procedure post-examination while retaining the test booklet for study reference.
Important Note on Redox Reactions
- Types of redox reactions include combination reactions, decomposition reactions, and displacement reactions, along with methods for balancing these reactions.
- Competitive electron transfer reactions delineate the mechanism of oxidation and reduction in redox systems.
Cell Biology Essentials
- Cell Membrane Functions: includes forms of intracellular junctions, endocytosis, and the cell's protective role.
- Plasmid Role: Acknowledgement of its function in antibiotic resistance and gene transfer within bacterial cells.
Practical Applications
- Knowledge of gas laws and stoichiometry for predicting outcomes in reactions such as water formation from hydrogen and oxygen.
- Understanding the importance of molecular mass in determining the proper ratios for chemical reactions in laboratory preparations.
Summary of Tissues in Zoology
- Familiarity with the functional aspects and locations of different types of animal tissues is essential for understanding structural organization.
- Differences in tissue types, such as squamous vs. columnar epithelium, determine their roles in various organ systems.
Conclusion
- Mastery of these topics will aid in the successful navigation of the NEET examination, enhancing problem-solving skills in physics and chemistry, and providing a robust understanding of biological organizational structure.### Frog Anatomy and Physiology
- Frogs possess a lengthy alimentary canal due to their carnivorous diet, aiding in the digestion of prey.
Rana Tigrina (Common Frog)
- Ten pairs of cranial nerves emerge from the frog's brain, facilitating various sensory and motor functions.
- Gaseous exchange occurs through lungs during aestivation, allowing the frog to survive in dry conditions.
- Red Blood Cells (RBCs) in frogs are enucleated, which is a characteristic of many amphibians.
- The forelimbs of frogs end in four digits, aiding in locomotion and jumping.
Incorrect Statements Regarding Rana Tigrina
- Frogs are classified as ureotelic, excreting urea instead of ammonia.
- The vascular system of frogs is closed, contrary to the misconception of it being open.
- Pancreatic juice is primarily responsible for the digestion of carbohydrates in frogs and should not be confused with other functions.
Tissue Identification
- Adipose tissue is found beneath the skin, acting as insulation and energy storage.
- Cartilage provides structural support and flexibility, not located beneath the skin.
- Ligaments connect bones at joints, while tendons connect muscles to bones.
Blood Composition
- Blood comprises four primary components: Red Blood Cells (RBCs), White Blood Cells (WBCs), platelets, and fibre secreting cells that aid in clotting.
Neuronal Activity
- Neurons can trigger either stimulation or inhibition in adjacent neurons when they receive disturbances at their endings, crucial for nervous system functioning.
Modified Polysaccharides Secretion
- The specific entities secrete modified polysaccharides; know the options provided to identify the correct source.
Identifying Correct Statements
- Analyze the statements about blood composition and neuronal function to determine their accuracy and relevance.
- Correct understanding of anatomical and physiological traits is fundamental for biology studies, particularly in amphibians.
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Description
This quiz covers essential topics in Physics, Chemistry, and Botany. You'll tackle questions on basic math in physics, redox reactions in chemistry, and cell functions in botany. Challenge yourself and test your understanding across these scientific disciplines.
