Chapter 1
GIVE 3 IMPORTANCES OF BIODIVERSITY
SOURCES OF FOOD; BALANCE IN NATURE; RECREATIONAL PLACE; EDUCATION; RAW MATERIALS FOR INDUSTRIES; MEDICAL
HOW DO WE RESTORE OXYGEN IN OUR ATMOSPHERE
BY PHOTOSYNTHESIS PROCESS.
WHAT ARE THE NUTRIENTS THAT NEEDED FOR BONES
CALCIUM, PHOSPHORUS, VITAMIN D
EXPLAIN HOW DENGUE FEVER SPREAD IN A COMMUNITY
WHEN AEDES MOSQUITO WITH DENGUE BITE A HEALTHY PERSON, THAT PERSON WILL BE INFECTED. THEN, ANOTHER AEDES MOSQUITO BITE THE INFECTED PERSON. NOW AEDES MOSQUITO BITE TO OTHER PEOPLE CAUSE IT TO SPREAD.
WHAT IS ENDEMIC SPECIES?
SPECIES THAT LIVES IN CLUSTERS WITHIN A RESTRICTED HABITAT IN A SPECIFIC LOCATION.
WHAT IS TRANSPIRATION PROCESS?
WATER IS ABSORBED BY ROOTS OF PLANTS IN THE GROUND AND RELEASED INTO THE ATMOSPHERE
HOW OUR BODY STORE CARBOHYDRATE AFTER WE EAT?
USED FOR CELLULAR RESPIRATION (IN BODY CELLS); STORED IN THE LIVER AS GLYCOGEN; STORED AS FAT.
GIVE 2 DIFFERENCES OF ARTIFICIAL ACTIVE IMMUNITY AND ARTIFICIAL PASSIVE IMMUNITY.
USE VACCINE: USE ANTI-SERUM ; LONG-LASTING: TEMPORARY ; ANTIBODIES PRODUCED: NO ANTIBODIES PRODUCED
WHAT IS THE LARGEST GROUP OF ANIMAL?
INSECTS
HOW PLANTS CAN PREVENT SOIL EROSION?
ROOTS OF PLANT HOLD THE SOILS TIGHTLY AND MAKE SOIL MORE COMPACT. THIS SLOWS DOWN THE FLOW OF UNDERGROUND WATER.
HOW BILE HELP IN THE DIGESTION OF FOOD IN DUODENUM
EMULSIFY FAT; NEUTRALISE CHYME; TO ACTIVATE PANCREATIC ENZYME/
GIVE 3 EXAMPLES OF 1ST LINE DEFENSE
skin:
The human skin is made of a tough layer and is difficult to be penetrated by microorganisms.
Sweat and sebum secreted by the skin contain chemicals that can kill microorganisms.
MUCOUS MEMBRANE:
Microorganisms that enter the respiratory tract are filtered by nasal hairs and trapped by mucous lining the nasal cavity.
Earwax, tears and vaginal secretions also function as an antiseptic that kills microorganisms.
3 DIFFERENCES OF MONOCOTYLEDON AND DICOTYLEDON
1 COTYLEDON : 2 COTYLEDONS; FIBROUS ROOT : TAP ROOTS; LEAVES WITH PARALLEL VEINS: LEAVES WITH NETWORK-LIKE VEINS; NON-WOODY: WOODY STEM
GIVE 5 PROCESSES INVOLVED IN WATER CYCLE.
CONDENSATION; RESPIRATION; DEFECATION; EXCRETION; EVAPORATION; TRANSPIRATION
WHAT HAPPEN IF NO HYDROCHLORIC ACID IN THE STOMACH
UNABLE TO ACTIVATE PROTEASE. NO PROTEIN DIGESTION.
WHAT IS THE DIFFERENCE BETWEEN 1ST LINE, 2ND LINE AND 3RD LINE DEFENSE?
1ST LINE : Prevents pathogens from entering the body
2ND LINE : Fights pathogens through phagocytosis
3RD LINE :
WHAT IS BIODIVERSITY?
DIVERSITY OF ORGANISMS
GIVE 2 EXAMPLES OF DECOMPOSER IN OUR DAILY LIFE
MUSHROOM THAT GROW ON DECAYING WOOD; MOULD THAT GROWS ON FOOD ; E.COLI BACTERIA THAT BREAK DOWN FOOD MOLECULES IN LARGE INTESTINES OF HUMANS
DESCRIBE PROTEIN DIGESTION
STOMACH: PROTEIN BREAKDOWN TO POLYPEPTIDE; SMALL INTESTINES: POLYPEPTIDE BREAKDOWN TO DIPEPTIDE/ DIPEPTIDE BREAKDOWN TO AMINO ACID
HOW TO PREVENT WATERBORNE DISEASE FROM SPREADING.
add chlorine into swimming pools and water supply systems;
build toilets with good sanitation;
boil drinking water properly;
wash hands with soap after using the toilet;