General Science

Which statement correctly identifies nephron?

A immune protein that specifically binds an antigen
B functional unit of kidney
C reproduction involving one parent and generally no gamete fusion
D organ enabling exchange between maternal and fetal circulations

Which statement correctly identifies iron?

A chronic inflammatory airway disorder
B deficiency, excess or imbalance of nutrients
C fat-soluble antioxidant vitamin
D mineral essential for haemoglobin

What is the best description of haemoglobin?

A organ enabling exchange between maternal and fetal circulations
B energy-releasing metabolism without oxygen as required by the pathway
C allele expressed in simple Mendelian inheritance when no dominant allele masks it
D iron-containing oxygen-carrying protein

In general science, fertilisation refers to:

A cells involved in immune defence
B fusion of male and female gametes
C organelle containing most genetic material in eukaryotic cells
D group of similar cells performing a common function

Which of the following is most closely associated with antibody?

A human immunodeficiency virus
B fusion of male and female gametes
C immune protein that specifically binds an antigen
D drug acting against susceptible bacteria

Which statement correctly identifies genotype?

A vessels carrying blood toward heart
B fluid containing enzymes such as amylase
C organ filtering blood and forming urine
D genetic constitution for a trait

Which statement correctly identifies arteries?

A tissue covering surfaces and lining cavities
B vessels carrying blood away from heart
C organelles strongly associated with aerobic ATP production
D major neural pathway between brain and peripheral nervous system

In general science, gene refers to:

A functional unit/segment of genetic information
B fatal viral infection usually transmitted through infected animal saliva
C brain injury due to interrupted blood flow or bleeding
D diet providing required nutrients and energy in suitable amounts

Which statement correctly identifies RNA?

A major energy-yielding macronutrient
B hormone that raises blood glucose
C vitamin important for collagen synthesis
D nucleic acid involved in gene expression and protein synthesis

Which statement correctly identifies growth hormone?

A nucleic acid involved in gene expression and protein synthesis
B hormone promoting growth and influencing metabolism
C vessels carrying blood away from heart
D tissue specialised for receiving and transmitting signals

Which statement correctly identifies heredity?

A transmission of genetic traits between generations
B cells involved in immune defence
C major site of digestion and nutrient absorption
D fluid of lymphatic system involved in immunity and fluid balance

What is the best description of vitamin B1?

A contractile tissue
B molecule carrying hereditary information
C muscular organ pumping blood
D thiamine, important in carbohydrate metabolism and nerve function

In general science, fat refers to:

A energy-dense macronutrient important in membranes
B substance recognised by immune system and capable of provoking response
C period of reproductive maturation and secondary sexual characteristics
D reproduction involving fusion of gametes

What is the best description of mitochondria?

A organelles strongly associated with aerobic ATP production
B cells involved in immune defence
C major site of digestion and nutrient absorption
D fluid of lymphatic system involved in immunity and fluid balance

What is the best description of cell membrane?

A nucleic acid involved in gene expression and protein synthesis
B selectively permeable boundary around a cell
C tissue specialised for receiving and transmitting signals
D vessels carrying blood away from heart

In general science, recessive allele refers to:

A vitamin important for blood clotting
B deficiency, excess or imbalance of nutrients
C allele expressed in simple Mendelian inheritance when no dominant allele masks it
D chronic inflammatory airway disorder

Which statement correctly identifies antiseptic?

A organ enabling exchange between maternal and fetal circulations
B substance applied to living tissue to reduce microorganisms
C preparation that stimulates protective immune responses
D reproduction involving one parent and generally no gamete fusion

What is the best description of carbohydrate?

A brain injury due to interrupted blood flow or bleeding
B diet providing required nutrients and energy in suitable amounts
C major energy-yielding macronutrient
D vitamin important for calcium/phosphate balance and bone health

Which statement correctly identifies Rh factor?

A chronic inflammatory airway disorder
B blood-group antigen system important in transfusion and pregnancy
C human immunodeficiency virus
D specific immune response with memory

Which statement correctly identifies brain?

A tissue involved in blood-cell production
B principal immediate energy currency of cells
C molecule carrying hereditary information
D major organ of central nervous system

Which statement correctly identifies skeleton?

A DNA-protein structure carrying genetic information
B framework of bones supporting and protecting body
C selectively permeable boundary around a cell
D cells transporting oxygen mainly using haemoglobin

In general science, veins refers to:

A contractile tissue
B system digesting food and absorbing nutrients
C vessels carrying blood toward heart
D muscular organ pumping blood

Which statement correctly identifies vitamin B12?

A fluid containing enzymes such as amylase
B vitamin important for blood formation and nervous function
C vessels carrying blood toward heart
D organ filtering blood and forming urine

What is the best description of vitamin D?

A system digesting food and absorbing nutrients
B vessels carrying blood away from heart
C stores and concentrates bile
D vitamin important for calcium/phosphate balance and bone health

What is the best description of chromosome?

A vitamin important for blood formation and nervous function
B DNA-protein structure carrying genetic information
C hormone that lowers blood glucose
D macronutrient made of amino acids