General Science

Which of the following is most closely associated with thyroxine?

A air sacs where major lung gas exchange occurs
B iron-containing oxygen-carrying protein
C thyroid hormone regulating metabolic processes
D large gland involved in metabolism and bile production

What is the best description of tissue?

A excessive body fat that may impair health
B vitamin important for vision and epithelial health
C group of similar cells performing a common function
D mineral important for bones, muscles and nerves

What is the best description of anaerobic respiration?

A fatal viral infection usually transmitted through infected animal saliva
B energy-releasing metabolism without oxygen as required by the pathway
C immediate non-specific defence
D brain injury due to interrupted blood flow or bleeding

In general science, white blood cells refers to:

A selectively permeable boundary around a cell
B blood-group antigen system important in transfusion and pregnancy
C rapid involuntary response to a stimulus
D cells involved in immune defence

In general science, Mendel refers to:

A heart-muscle damage due to inadequate coronary blood supply
B energy-dense macronutrient important in membranes
C enteric fever caused by Salmonella Typhi
D scientist whose pea experiments established foundational inheritance laws

In general science, vitamin A refers to:

A tiny vessels where exchange with tissues occurs
B functional unit of kidney
C organ involved in storage and digestion
D vitamin important for vision and epithelial health

Which of the following is most closely associated with malnutrition?

A deficiency, excess or imbalance of nutrients
B framework of bones supporting and protecting body
C scientist whose pea experiments established foundational inheritance laws
D principal immediate energy currency of cells

Which of the following is most closely associated with AIDS?

A diet providing required nutrients and energy in suitable amounts
B fatal viral infection usually transmitted through infected animal saliva
C brain injury due to interrupted blood flow or bleeding
D advanced HIV disease with severe immune suppression

In general science, adaptive immunity refers to:

A immune protein that specifically binds an antigen
B reproduction involving fusion of gametes
C period of reproductive maturation and secondary sexual characteristics
D specific immune response with memory

Which statement correctly identifies thyroxine?

A tissue covering surfaces and lining cavities
B thyroid hormone regulating metabolic processes
C organelles strongly associated with aerobic ATP production
D major neural pathway between brain and peripheral nervous system

Which statement correctly identifies chromosome?

A DNA-protein structure carrying genetic information
B vitamin important for blood clotting
C deficiency, excess or imbalance of nutrients
D chronic inflammatory airway disorder

In general science, heredity refers to:

A hormone that lowers blood glucose
B transmission of genetic traits between generations
C stores and concentrates bile
D system digesting food and absorbing nutrients

Which of the following is most closely associated with aerobic respiration?

A differential survival and reproduction of heritable variants
B transmission of genetic traits between generations
C cellular energy release using oxygen
D sum of chemical reactions in an organism

Which of the following is most closely associated with Mendel?

A scientist whose pea experiments established foundational inheritance laws
B Plasmodium infection transmitted by infected female Anopheles mosquitoes
C viral liver infection caused by hepatitis B virus
D substance applied to living tissue to reduce microorganisms

Which of the following is most closely associated with genotype?

A thyroid hormone regulating metabolic processes
B genetic constitution for a trait
C energy-dense macronutrient important in membranes
D vitamin important for calcium/phosphate balance and bone health

What is the best description of blood?

A substance recognised by immune system and capable of provoking response
B reproduction involving fusion of gametes
C enteric fever caused by Salmonella Typhi
D fluid connective tissue

In general science, endocrine system refers to:

A system of hormone-secreting glands
B place where two or more bones meet
C sum of chemical reactions in an organism
D nucleic acid involved in gene expression and protein synthesis

In general science, digestive system refers to:

A thyroid hormone regulating metabolic processes
B energy-dense macronutrient important in membranes
C system digesting food and absorbing nutrients
D vitamin important for calcium/phosphate balance and bone health

Which of the following is most closely associated with evolution?

A change in heritable population characteristics over generations
B substance recognised by immune system and capable of provoking response
C reproduction involving fusion of gametes
D period of reproductive maturation and secondary sexual characteristics

Which of the following is most closely associated with capillaries?

A tiny vessels where exchange with tissues occurs
B functional unit of kidney
C organ involved in storage and digestion
D thyroid hormone regulating metabolic processes

Which of the following is most closely associated with nephron?

A framework of bones supporting and protecting body
B principal immediate energy currency of cells
C scientist whose pea experiments established foundational inheritance laws
D functional unit of kidney

Which statement correctly identifies dominant allele?

A vitamin important for calcium/phosphate balance and bone health
B functional unit of kidney
C allele expressed in a simple dominant-recessive pairing when present
D thyroid hormone regulating metabolic processes

What is the best description of malaria?

A major organ of central nervous system
B group of similar cells performing a common function
C Plasmodium infection transmitted by infected female Anopheles mosquitoes
D organelle containing most genetic material in eukaryotic cells

In general science, alveoli refers to:

A thiamine, important in carbohydrate metabolism and nerve function
B air sacs where major lung gas exchange occurs
C system of hormone-secreting glands
D organ producing digestive enzymes and hormones including insulin

Which statement correctly identifies excretion?

A female human gamete
B removal of metabolic waste products
C genetic constitution for a trait
D change in heritable population characteristics over generations