General Science

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

What is the best description of aerobic respiration?

A advanced HIV disease with severe immune suppression
B excessive body fat that may impair health
C infectious disease caused mainly by Mycobacterium tuberculosis
D cellular energy release using oxygen

What is the best description of stomach?

A removal of metabolic waste products
B absorbs water/electrolytes and forms faeces
C hormone promoting growth and influencing metabolism
D organ involved in storage and digestion

In general science, excretion refers to:

A major neural pathway between brain and peripheral nervous system
B allele expressed in simple Mendelian inheritance when no dominant allele masks it
C energy-releasing metabolism without oxygen as required by the pathway
D removal of metabolic waste products

Which of the following is most closely associated with pancreas?

A allele expressed in simple Mendelian inheritance when no dominant allele masks it
B reproduction involving one parent and generally no gamete fusion
C organ producing digestive enzymes and hormones including insulin
D organ enabling exchange between maternal and fetal circulations

Which statement correctly identifies fertilisation?

A fusion of male and female gametes
B biological catalyst, usually a protein
C molecule carrying hereditary information
D tissue involved in blood-cell production

Which statement correctly identifies antibiotic?

A substance recognised by immune system and capable of provoking response
B drug acting against susceptible bacteria
C enteric fever caused by Salmonella Typhi
D male human gamete

In general science, neuron refers to:

A nucleic acid involved in gene expression and protein synthesis
B specialised cell transmitting nervous signals
C biological catalyst, usually a protein
D place where two or more bones meet

Which of the following is most closely associated with neuron?

A organelles strongly associated with aerobic ATP production
B tissue covering surfaces and lining cavities
C specialised cell transmitting nervous signals
D cell fragments important in blood clotting

What is the best description of endocrine system?

A differential survival and reproduction of heritable variants
B transmission of genetic traits between generations
C system of hormone-secreting glands
D male human gamete

What is the best description of nephron?

A human immunodeficiency virus
B functional unit of kidney
C chronic inflammatory airway disorder
D specific immune response with memory

What is the best description of stroke?

A change in genetic material
B rapid involuntary response to a stimulus
C blood-group antigen system important in transfusion and pregnancy
D brain injury due to interrupted blood flow or bleeding