Science Part II
Important name the following/Give examples
Remember :
→ If a question based on ‘Giving suitable examples or writing the names’ is asked under Q. 1 (B), then write any two examples.
→ If a similar question is asked under Q. 2 (B) for 2 marks, write any 4 suitable examples.
→ For such type of questions descriptive answer is not expected.
Most helpful for Board Paper
CHAPTER 1 : HEREDITY AND EVOLUTION
(1) Genetic disorder caused due to mutation :
Ans. Sickle cell anaemia.
(2) Vestigial organs in human beings :
Ans. Appendix, tail-bone or coccyx, wisdom teeth and body hair.
(3) Connecting links:
Ans. Peripatus, Duckbill platypus, Lung fish.
(4) I am connecting link between Reptilia and mammals. What is my name? (March ’20)
Ans. Duck-billed Platypus.
CHAPTER 2 : LIFE PROCESSES IN LIVING ORGANISMS : PART – 1
(1) Co-enzymes that help in cellular respiration :
Ans. NADH2 and FADH2
(2) Scientists who discovered process of glycolysis :
Ans. Gustav Embden, Otto Meyerhof and Jacob Parnas.
(3) Proteins formed in body :
Ans. Melanin. Keratin, Ossein, Haemoglobin.
(4) Hormones synthesised from fatty acids.
Ans. Progesterone, Estrogen, Testosterone, Aldosterone.
CHAPTER 3 : LIFE PROCESSES IN LIVING ORGANISMS : PART – 2
(1) Methods of asexual reproduction :
Ans. Fission, Fragmentation, Budding, Spore formation, Vegetative propagation.
(2) Different glands associated with male reproductive system.
Ans. Seminal vesicles, Prostate gland, Cowper’s or bulbourethral glands.
(3) Hormones secreted by ovary of female reproductive system.
Ans. Estrogen and progesterone.
(4) The modern techniques in reproduction.
Ans. In Vitro Fertilization, Surrogate mother, Sperm bank.
(5) Symptoms of gonorrhoea.
Ans. Painful and burning sensation during urination, oozing of pus through penis and vagina, inflammation of urinary tract, anus, throat, eyes, etc.
(6) Symptoms of syphilis.
Ans. Occurrence of chancre (patches) on various parts of body including genitals, rash, fever, inflammation of joints, alopecia, etc.
CHAPTER 4 : ENVIRONMENTAL MANAGEMENT
(1) Abiotic factors :
Ans. Hydrogen, Oxygen, Soil, Water, Carbon minerals, etc.
(2) Biotic factors :
Ans. Plants, Animals and microbes.
(3) Factors responsible for creating environmental pollution.
Ans. Industrialization, Deforestation, Indiscriminate use of natural resources, Unplanned urbanization.
(4) Levels of biodiversity :
Ans. Genetic diversity, Species diversity, Ecosystem diversity.
(5) Any two Environmental laws :
Ans. (1) Forest Conservation Act 1980
(2) Wild Life Protection Act 1972.
CHAPTER 5 : TOWARDS GREEN ENERGY
(1) Forms of energy :
Ans. Chemical energy, Mechanical energy, Sound energy, Light energy, Heat/Thermal energy.
(2) Major thermal power plants in India :
Ans. Vindhyanagar, Mundra, Tamnaar, Chandrapur.
(3) Important nuclear power plants in India :
Ans. Kudankulam, Tarapur, Ravatbhata, Kaiga.
(4) Natural gas based power plants in India :
Ans. Samaralkota, Anjanvel, Bavanna, Kondapalli.
(5) Major hydroelectric plants in India :
Ans. Tehari, Koyana, Srishailam, Nathpa zakri.
CHAPTER 6 : ANIMAL CLASSIFICATION
(1) I am diploblastic and acoelomate. Which phylum do I belong to?
Ans. I am from phylum Cnidaria or Coeleterata.
(2) My body is radially symmetrical. Water vascular system is present in my body. I am referred as fish though I am not. What is my name?
Ans. I am Starfish. I am from Echinodermata phylum.
(3) I live in your small intestine. Pseudocoelom is present in my thread like body. In which phylum will you include me?
Ans. I am Ascaris. I am included in Aschelminthes.
(4) Though I am multicellular, there are no tissues in my body. What is the name of my phylum?
Ans. Name of my phylum is Porifera.
(5) I am metamerically segmented, blood sucking, ectoparasite. I have suckers. Who am I. (July’19)
Ans. I am Leech. Classified as Annelidan.
(6) 1 have chitinous exoskelcton, I have four pairs of walking appendages. I can sting you. Who am I? What phylum do I belong to?
Ans. I am Scorpion. I belong to Phylum Arthropoda.
CHAPTER 7 ; INTRODUCTION TO MICROBIOLOGY
(1) Types of cheese :
Ans. Cottage cheese, Cream cheese, Mozarella cheese, Cheddar cheese, Parmesan.
(2) Microbes used for production of beverages :
Ans. Lactobacillus brewis, Candida, Hansenula, Pichia, Saccharomyces.
(3) Microbial enzymes:
Ans. Oxidoreductases, Transferases, Hydrolases, Lyases, Isomerases, Ligases.
(4) Microbes used in production of Ajinomoto :
Ans. Brevibacterium, Corynobacterium.
CHAPTER 8 : CELL BIOLOGY AND BIOTECHNOLOGY
(1) Organs that can be used in transplantation :
Ans. Heart, Kidney, Liver, Eyes, Skin.
(2) Genetically modified crops :
Ans. BT Cotton, BT Brinjal, Golden rice.
(3) Biofertilizers :
Ans. Rhizobium, Azetobacter, Nostoc, Anabena.
CHAPTER 9 : SOCIAL HEALTH
(1) Hobbies to reduce stress.
Ans. (1) To listen to music (2) Bird watching and nature trails (3) Reading good books.
(2) Diseases endangering the social health.
Ans. (1) AIDS (2) Tuberculosis (3) Leprosy.
(3) Physical problems arising due to excessive use of mobile phones.
Ans. (1) Headache (2) Vision problems (3) Joint pains.
CHAPTER 10 : DISASTER MANAGEMENT
(A) (1) Geological disasters :
Ans. Earthquake, Volcano, Tsunami, Landslide, Erosion, Salinization.
(2) Intentional man-made disasters :
Ans. War, Fire (setting purposely), terrorism, Riots, Bomb blast, Rapes, Child labour.
(B) Name the disasters from the statements given below :
(1) On 26th July 2005, entire suburban Mumbai was waterlogged.
Ans. Cloudbursting and severe downpour
(2) Elephants in the Bandipur forest started running helter and skelter due to smoke.
Ans. Forest fires
(3) Many innocent people died in the bomb blast that occurred on 11th July 2006 in local trains.
Ans. Bomb explosion-Terrorism
(4) In Kutch, suddenly many school children were buried under the rubble.
Ans. Earthquake
(5) Because of lack of grains, people from Vidarbha are migrating to other regions.
Ans. Dry famine
(6) The huge waves in Chennai engulfed many human lives in December 2004.
Ans. Tsunami