Morphology of flowering plants - Part 2 The Stem

Structural organisation in animals - Part 4 Cockroach

Structural organisation in animals - Part 2 Connective Tissues

Digestion n absorption - Part 5 Absorption of digested products

Digestion n absorption - Part 4 Digestion of food

Digestion n absorption - Part 3 Digestive glands

Biology root word series - Episode 2

Animal kingdom - part 12 phylum Chordata

Animal kingdom - part 11 phylum Hemichordata

Animal kingdom - part 10 phylum Echinodermata

2 sexual reproduction in flowering plants - Part 3 pollination

2 sexual reproduction in flowering plants - Part 3 pollination

Molecular basis of inheritance - Part 7 Translation Protein synthesis

Molecular basis of inheritance - Part 9 Human Genome Project

STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION - Part 6 SCP and Tissue cu...

STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION - Part 5 Plant breeding 2

Molecular basis of inheritance - Part 6 Genetic code, Mutation, types of...

Principles of inheritance and variation - Part 2 Mendel's laws of inheri...

Principles of inheritance and variation - Part 1 Mendel's laws of inheri...

Principles of inheritance and variation - Part 5 Linkage n Recombination...

Principles of inheritance and variation - Part 4 Chromosomal theory of i...

Human health n diseases - Part 2 Common infectious diseases 2

Human health n diseases - Part 1 Common infectious diseases 1

Human health n diseases - Part 5 Immunity 2

Evolution Part 5 Hardy Weinberg principle

Molecular basis of inheritance - Part 3 The search for genetic material

Evolution - Part 4 Theories of evolution

Molecular basis of inheritance - Part 2 Packaging of DNA helix

Principles of inheritance and variation - Part 3 Non Mendelian inheritance

Biological classification - Part 2 Kingdom Protista

Human health n diseases Part 8 Drugs, smoking n alcoholism

Evolution - Part 6 A brief account of evolution

അന്ധന്മാര്‍ സ്വപ്നം കാണുമോ?

Reproduction in organisms Part 3 Sexual reproduction contd

11 Biotechnology principles n processes Part 2 Tools of biotechnology R...

11 Biotechnology principles n processes - Part 1 Principles

Biomolecules: Previous Year Questions Part 2

BIOMOLECULES

2013 MARCH

1.     

 

Biomolecules: Previous Year Questions Part 3

BIOMOLECULES

2016 MARCH

1.     Metabolites are organic compounds constantly utilized in various metabolic activities in the cells.

Digestion and Absorption: Previous Year Questions Part 2

DIGESTION AND ABSORPTION

2013 OCTOBER (IMPROVEMENT)

No questions

MARCH 2014

1.     Sketch an outline (or a flowchart) of protein digestion taking place in your alimentary canal. (3)

Digestion and Absorption: Previous Year Questions Part 3

DIGESTION AND ABSORPTION

2016 MARCH

1.     From the following list, pick out the enzyme, that takes part in carbohydrate digestion.                                 (1)

Breathing and exchange of gases: Previous Year Questions Part 2

BREATHING AND EXCHANGE OF GASES

2013 MARCH

1.     Pick out the wrong one and justify your selection. (2)

Breathing and exchange of gases: Previous Year Questions Part 3

BREATHING AND EXCHANGE OF GASES

2016 MARCH

1.     Carbon dioxide transport in the form of bicarbonate ion is picturized below. Observe the diagram and identify the enzyme.                                                         (1)

Body fluids and circulation: Previous Year Questions Part 2

BODY FLUIDS AND CIRCULATION

2013 MARCH

1.     A person with A-ve blood group is injured severely in an accident. His relatives with A+ve and B-ve blood groups were ready to donate blood for him. Infer the consequences if he receives blood from them. (1)

Body fluids and circulation: Previous Year Questions Part 3

BODY FLUIDS AND CIRCULATION

2016 MARCH

1.     Longitudinal section of the human heart showing internal structure is given below. Observe the diagram and answer the following questions:

Excretory products and their elimination: Previous Year Questions Part 2

EXCRETORY PRODUCTS AND THEIR ELIMINATION

MARCH 2013

1.     In a biology class related to excretion in the human body, a student gave an opinion that in every minute about 2% of the total blood volume of the body is converted to GFR whereas only 1% of this GFR is eliminated as urine. Evaluate this opinion and substantiate your answer. (2)

Excretory products and their elimination: Previous Year Questions Part 3

EXCRETORY PRODUCTS AND THEIR ELIMINATION

MARCH 2016

1.     “The functioning of human kidney is efficiently monitored and regulated by hormonal actions of hypothalamus pituitary, JGA and to a certain extent by heart“

Locomotion and Movement: Previous Year Questions Part 2

LOCOMOTION AND MOVEMENT

2013 MARCH

1.     Observe the structural representation of the muscle given below:

Locomotion and Movement: Previous Year Questions Part 3

LOCOMOTION AND MOVEMENT

2016 MARCH

1.     “A contracted muscle becomes shorter and thicker but its volume remains the same.”

Neural control and coordination: Previous Year Questions Part 2

NEURAL CONTROL AND COORDINATION

2013 MARCH

1.     Arrange the following processes in nerve impulse conduction in a sequential order. (3)

Neural control and coordination: Previous Year Questions Part 3

NEURAL CONTROL AND COORDINATION

MARCH 2016

1.     Observe the diagram carefully and answer the following questions.                                                                  (3)

Chemical coordination and integration: Previous Year Questions Part 2

CHEMICAL COORDINATION AND INTEGRATION

2013 MARCH

1.     Fill the table appropriately. (2)

Chemical coordination and integration: Previous Year Questions Part 3

CHEMICAL COORDINATION AND INTEGRATION

2016  MARCH

1.     Hormonal abnormality is responsible for certain diseases in man. List of some diseases are given below. Write the hormone related to each of it.     (2)

Human Reproduction: Previous Year Questions Part 2

HUMAN REPRODUCTION

2013 MARCH

1.   The following statements compare the process of oogenesis & spermatogenesis. Which one is not true? (1)

Human Reproduction: Previous Year Questions Part 3

HUMAN REPRODUCTION

2016 MARCH

1.   Match the columns A and B: (2)

Reproductive health: Previous Year Questions Part 2

REPRODUCTIVE HEALTH

2013 MARCH

1.     Suggest the ART which may be successful in the following conditions. (½ + ½ + 2=3) 

Reproductive health: Previous Year Questions Part 3

REPRODUCTIVE HEALTH

2016 MARCH

1.     Categorize the given birth control methods into three groups with proper heads.

Principles of inheritance and variation: Previous Year Questions Part 2

PRINCIPLES OF INHERITANCE AND VARIATION

2013 MARCH

1.     Identify the traits from the pedigree chart. Give one example each. (1+1 =2)

Principles of inheritance and variation: Previous Year Questions Part 3

PRINCIPLES OF INHERITANCE AND VARIATION

2016 MARCH

1.     Which of the following is not a Mendelian disorder?

Molecular basis of inheritance: Previous Year Questions Part 2

MOLECULAR BASIS OF INHERITANCE

2013 MARCH

1.     The flow of genetic information is shown below. Name the processes a, b, c & d. (4 x ½ =2)

Molecular basis of inheritance: Previous Year Questions Part 3

MOLECULAR BASIS OF INHERITANCE

2016 MARCH

1.     Result of a famous experiment is given in the figure. Answer the questions.

Evolution: Previous Year Questions Part 2

EVOLUTION

2013 MARCH

1.     Arrange the following examples under two heads viz- homologous organs and analogous organs.            (Score: 2)

Evolution: Previous Year Questions Part 3

EVOLUTION

2016 MARCH

1.     Which theory talks about the huge explosion that leads to origin of universe?                (Score: 1)

Human health n diseases: Previous Year Questions Part 2

HUMAN HEALTH AND DISEASES

2013 MARCH

1.     Most often HIV infection occurs due to conscious behavior patterns. Do you agree with this statement? Substantiate your answer. (2)

Human health n diseases: Previous Year Questions Part 3

HUMAN HEALTH AND DISEASES

2016 MARCH

1.     Identify the disease shown in the following figure and write the causative organism of the disease.           (Score: 1)

Microbes in human welfare: Previous Year Questions Part 2

MICROBES IN HUMAN WELFARE

2013 MARCH

1.     Some bioactive molecules, their source and their medical importance are given in table. Fill up the missing parts. (2)

Microbes in human welfare: Previous Year Questions Part 3

MICROBES IN HUMAN WELFARE

2016 MARCH

1.     “BOD is commonly calculated as an index of water pollution.”

Biodiversity and conservation: Previous Year Questions Part 2

BIODIVERSITY AND CONSERVATION

2012 SAY

1.     Last 20 years alone have witnessed the disappearance of 27 animal species from earth.

Biodiversity and conservation: Previous Year Questions Part 3

BIODIVERSITY AND CONSERVATION

2016   MARCH

1.     Observe the concept diagram of the Evil Quartet of biodiversity loss.

Environmental issues: Previous Year Questions Part 1

ENVIRONMENTAL ISSUES

2010 MARCH

1.     Destruction of forest leads to the increase of CO₂ in atmosphere. Recently Govt. of India instituted an award for individuals or communities from rural areas that shown extraordinary courage and dedication in protecting wildlife.

Environmental issues: Previous Year Questions Part 2

ENVIRONMENTAL ISSUES

2013 MARCH

NO QUESTIONS

2013 SAY

1.     In a study conducted, the concentration of DDT found to increase in the successive trophic levels. The result of the study is shown below.

Environmental issues: Previous Year Questions Part 3

ENVIRONMENTAL ISSUES

2016 MARCH

1.     Increase in the concentration of toxicants at successive trophic level is called

Ecosystems: Previous Year Questions Part 1

ECOSYSTEMS

2010 MARCH

1.     During a study tour teacher showed the primary colonizers on the banks of the river ‘Nila’.

Ecosystems: Previous Year Questions Part 2

ECOSYSTEMS

2013 MARCH

1.     Final community that is in near equilibrium with environment in ecological succession is called (1)

Ecosystems: Previous Year Questions Part 3

ECOSYSTEMS

2016 MARCH

1.     Nutrients are never lost from the ecosystems and are recycled. Write about

Organisms and populations: Previous Year Questions Part 1

ORGANISMS AND POPULATIONS

2010 MARCH

1.     Given below is a table which shows the interspecific interaction. ‘+’ sign indicates beneficial, ‘-‘ sign indicates detrimental and ‘0’ indicates neutral.

Organisms and populations: Previous Year Questions Part 2

ORGANISMS AND POPULATIONS

2013 MARCH

1.     Read the statements below and identify the mode of interaction between the species. (2)

Organisms and populations: Previous Year Questions Part 3

ORGANISMS AND POPULATIONS

2016 MARCH

1.     a) Population interactions may be beneficial or not. Write any three interactions in detail.                            (Scores: 3)

Biotechnology and its Applications: Previous Year Questions Part 1

BIOTECHNOLOGY AND ITS APPLICATIONS

2010 MARCH

1.     Teacher asked Balan to write the principle of RNAi technology. Help him by describing the method. (1)

Biotechnology and its Applications: Previous Year Questions Part 2

BIOTECHNOLOGY AND ITS APPLICATIONS

2013 MARCH

1.     A novel strategy to prevent nematode manifestation is based on ‘RNA interference’.

Biotechnology and its Applications: Previous Year Questions Part 3

BIOTECHNOLOGY AND ITS APPLICATIONS

2016 MARCH

1.     The recombinant DNA technological process has made immense impact in the area of healthcare. How Eli Lilly produced Insulin? (Scores: 2)

Biotechnology-Principles and processes: Previous Year Questions Part 1

BIOTECHNOLOGY- PRINCIPLES AND PROCESSES

2010 MARCH

1.     Raju is searching blight resistant plants for his crossing experiments. Unfortunately no such varieties are available.

Biotechnology-Principles and processes: Previous Year Questions Part 2

BIOTECHNOLOGY- PRINCIPLES AND PROCESSES

2013 MARCH

1.     Jaya read in a Biotechnology book that alien DNA can be introduced into host cell by microinjection and biolistics. Explain these methods. (2)

Biotechnology-Principles and processes: Previous Year Questions Part 3

BIOTECHNOLOGY- PRINCIPLES AND PROCESSES

2016 MARCH

1.   

 

Strategies for enhancement in food production: Previous Year Questions Part 1

STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION

2010 MARCH

1.     Johny, a Plus Two student is from a tribal colony with lower level of vitamins, minerals and protein deficiency. He wishes to be a plant breeder to help the public by producing new crops with high levels of vitamins, minerals, protein etc. identify the phenomenon. (2)

Strategies for enhancement in food production: Previous Year Questions Part 2

STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION

2013 MARCH

1.     MOET is a programme for herd improvement. Expand MOET. (1)

Strategies for enhancement in food production: Previous Year Questions Part 3

STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION

2016 MARCH

1.     (a) Resistance is the ability to prevent the pathogen from causing disease.