Showing posts with label CLASS XI. Show all posts
Showing posts with label CLASS XI. Show all posts

Saturday, 21 December 2024

CLASS XI LIST OF INVESTIGATORY PROJECT

List of 20 investigatory project ideas for Class XI based on the NCERT syllabus:

1. Study of the Effect of Different Fertilizers on Plant Growth


2. Analysis of the Water Quality from Local Water Bodies


3. Study of the Antimicrobial Properties of Various Plant Extracts


4. Impact of pH on the Germination of Seeds


5. Role of Yeast in Fermentation and its Commercial Applications


6. Study of Pollution Levels in Air Using Bioindicators like Lichens


7. Comparative Study of Different Types of Soils and Their Water Retention Capacities


8. Investigating the Effect of Temperature on Enzyme Activity


9. Study of Biodegradation of Domestic Waste Using Earthworms (Vermicomposting)


10. Analysis of the Effect of Light Intensity on the Rate of Photosynthesis


11. Testing the Presence of in Food Items


12. Comparative Study of Various Biodegradable and Non-Biodegradable Plastics


13. Effect of Music or Sound Vibrations on Plant Growth


14. Study of the Blood Groups and Their Distribution in a Population Sample


15. Investigating the Effect of Sugar Substitutes on Yeast Respiration


16. Study of Microorganisms in Curd and Their Role in Curd Formation


17. Analysis of the Vitamin C Content in Different Fruits and Vegetables


18. Impact of Mobile Phone Radiation on Seed Germination


19. Extraction and Study of Natural Dyes from Plant Sources


20. Survey and Study of Medicinal Plants in a Local Area




Tuesday, 27 June 2023

Cytology fundamental part 1


 

All joints ...at a glance

 


Joint TypeDescriptionExample
Ball-and-SocketRounded end of one bone fits into a cup-shaped socketShoulder joint
HingeMovement limited to a single plane (bending and straightening)Elbow joint, knee joint
PivotAllows rotation around a central axisAtlas-axis joint (between the first two vertebrae in the neck)
GlidingSliding or twisting motion between two flat surfacesWrist joint, ankle joint
SaddleConvex and concave surfaces fit together like a saddleThumb joint
CondyloidOval-shaped end of one bone fits into an elliptical cavityWrist joint
SynovialJoint surrounded by a joint capsule filled with synovial fluidMost joints in the body, such as the hip, shoulder, and knee
FibrousConnected by fibrous connective tissueSutures of the skull
CartilaginousConnected by cartilageIntervertebral discs between vertebrae
Fixed/ImmovableNo movement allowedSkull sutures

Sunday, 25 June 2023

Biological parameters for NEET


Here are the normal values for some common biological parameters:


Blood sugar (glucose):

Fasting blood glucose: 70-99 mg/dL (3.9-5.5 mmol/L)

Random blood glucose: Less than 200 mg/dL (11.1 mmol/L)

Hemoglobin (Hb):

Male: 13.5-17.5 g/dL

Female: 12.0-15.5 g/dL

Urea:

Blood urea nitrogen (BUN): 7-20 mg/dL (2.5-7.1 mmol/L)

Cholesterol:

Total cholesterol: Less than 200 mg/dL (5.2 mmol/L)

LDL (low-density lipoprotein) cholesterol: Less than 100 mg/dL (2.6 mmol/L)

HDL (high-density lipoprotein) cholesterol: Greater than 40 mg/dL (1.0 mmol/L) for men, greater than 50 mg/dL (1.3 mmol/L) for women

Triglycerides: Less than 150 mg/dL (1.7 mmol/L)

Saturday, 20 May 2023

Volume and capacities of human lung

 


DIFFERENCE between national park, a Sanctuary or century, and a biosphere reserve ..2023

 A national park, a century, and a biosphere reserve are all different types of protected areas that serve specific purposes in terms of conservation and management. Here are the differences between them:


National Park:

A national park is a designated area of land and/or water set aside by a government to protect and preserve its unique natural, cultural, and historical features. National parks aim to conserve ecosystems, wildlife, and landscapes while providing opportunities for public enjoyment and education. Activities such as hunting, logging, and mining are usually restricted within national parks to maintain their ecological integrity. National parks often have strict regulations to preserve the area's natural resources and biodiversity.


Wildlife Sanctuary or Century:

A wildlife sanctuary, also known as a century, is a protected area that focuses on the conservation and protection of wildlife and their habitats. These areas are specifically established to provide a safe refuge for endangered species or those that require special protection. Wildlife sanctuaries are typically smaller in size compared to national parks and may allow limited human activities depending on the regulations set by the governing authority.


Biosphere Reserve:

A biosphere reserve is a unique designation that combines conservation, research, and sustainable development. Biosphere reserves are intended to protect ecosystems and biodiversity while promoting sustainable use of natural resources. These areas often consist of three zones: a core area that is strictly protected, a buffer zone that allows for limited human activity, (NEET Q)and a transition zone where sustainable development and human settlements are allowed. Biosphere reserves serve as living laboratories for studying ecological processes and testing sustainable development practices.


In summary, while all three types of protected areas aim to conserve natural resources, national parks primarily focus on preserving ecosystems and providing recreational opportunities, wildlife sanctuaries or centuries concentrate on safeguarding specific wildlife species, and biosphere reserves integrate conservation, research, and sustainable development practices.

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