General Science

What is the best description of diaphragm?

A tiny vessels where exchange with tissues occurs
B major site of digestion and nutrient absorption
C cells transporting oxygen mainly using haemoglobin
D major muscle aiding breathing

What is the best description of embryo?

A site of protein synthesis
B framework of bones supporting and protecting body
C principal immediate energy currency of cells
D developing organism in early post-fertilisation stages

Which of the following is most closely associated with insulin?

A tiny vessels where exchange with tissues occurs
B DNA-protein structure carrying genetic information
C cells transporting oxygen mainly using haemoglobin
D hormone that lowers blood glucose

Which statement correctly identifies neuron?

A blood-group antigen system important in transfusion and pregnancy
B specialised cell transmitting nervous signals
C major organ of central nervous system
D change in genetic material

In general science, sperm refers to:

A place where two or more bones meet
B male human gamete
C sum of chemical reactions in an organism
D nucleic acid involved in gene expression and protein synthesis

Which of the following is most closely associated with vitamin E?

A deficiency, excess or imbalance of nutrients
B human immunodeficiency virus
C fat-soluble antioxidant vitamin
D chronic inflammatory airway disorder

What is the best description of muscle tissue?

A viral liver infection caused by hepatitis B virus
B Plasmodium infection transmitted by infected female Anopheles mosquitoes
C reduced oxygen-carrying capacity of blood, commonly due to low haemoglobin
D contractile tissue

What is the best description of reflex action?

A developing organism in early post-fertilisation stages
B allele expressed in a simple dominant-recessive pairing when present
C rapid involuntary response to a stimulus
D cellular energy release using oxygen

In general science, genotype refers to:

A maintenance of stable internal conditions
B genetic constitution for a trait
C vitamin important for vision and epithelial health
D large gland involved in metabolism and bile production

Which of the following is most closely associated with blood?

A major organ of central nervous system
B organelle containing most genetic material in eukaryotic cells
C cellular energy release using oxygen
D fluid connective tissue

In general science, hepatitis B refers to:

A vitamin important for blood clotting
B chronic inflammatory airway disorder
C deficiency, excess or imbalance of nutrients
D viral liver infection caused by hepatitis B virus

Which of the following is most closely associated with heart attack?

A cells transporting oxygen mainly using haemoglobin
B heart-muscle damage due to inadequate coronary blood supply
C tiny vessels where exchange with tissues occurs
D DNA-protein structure carrying genetic information

What is the best description of vitamin B12?

A system responsible for ventilation and gas exchange
B tissue covering surfaces and lining cavities
C cell fragments important in blood clotting
D vitamin important for blood formation and nervous function

In general science, heart attack refers to:

A heart-muscle damage due to inadequate coronary blood supply
B framework of bones supporting and protecting body
C tissue supporting, binding or connecting structures
D site of protein synthesis

What is the best description of nucleus?

A tissue supporting, binding or connecting structures
B iron-containing oxygen-carrying protein
C organelle containing most genetic material in eukaryotic cells
D air sacs where major lung gas exchange occurs

Which of the following is most closely associated with saliva?

A deficiency, excess or imbalance of nutrients
B fluid containing enzymes such as amylase
C chronic inflammatory airway disorder
D human immunodeficiency virus

In general science, nephron refers to:

A fusion of male and female gametes
B functional unit of kidney
C observable characteristics resulting from genotype and environment
D blood classification based mainly on A/B antigens on red cells

Which of the following is most closely associated with vitamin K?

A enteric fever caused by Salmonella Typhi
B heart-muscle damage due to inadequate coronary blood supply
C substance recognised by immune system and capable of provoking response
D vitamin important for blood clotting

In general science, antigen refers to:

A substance recognised by immune system and capable of provoking response
B advanced HIV disease with severe immune suppression
C infectious disease caused mainly by Mycobacterium tuberculosis
D substance applied to living tissue to reduce microorganisms

Which statement correctly identifies dengue?

A viral disease mainly transmitted by Aedes mosquitoes
B air sacs where major lung gas exchange occurs
C tissue supporting, binding or connecting structures
D iron-containing oxygen-carrying protein

Which of the following is most closely associated with obesity?

A organelle containing most genetic material in eukaryotic cells
B major organ of central nervous system
C cellular energy release using oxygen
D excessive body fat that may impair health

Which of the following is most closely associated with stroke?

A tissue specialised for receiving and transmitting signals
B system digesting food and absorbing nutrients
C brain injury due to interrupted blood flow or bleeding
D vessels carrying blood away from heart

Which statement correctly identifies spinal cord?

A organelles strongly associated with aerobic ATP production
B major organ of central nervous system
C tissue covering surfaces and lining cavities
D major neural pathway between brain and peripheral nervous system

Which statement correctly identifies endocrine system?

A cellular energy release using oxygen
B allele expressed in a simple dominant-recessive pairing when present
C major organ of central nervous system
D system of hormone-secreting glands

What is the best description of capillaries?

A major organ of central nervous system
B organelle containing most genetic material in eukaryotic cells
C group of similar cells performing a common function
D tiny vessels where exchange with tissues occurs