10th Sep '25

Multiple Choice 2015-16

Question	Answer	Mislead1	Mislead2	Mislead3	Point
What is the function of the Testes?	Testes are where sperm cells are produced.	Testes is a bag of skin which holds the testes away from the body so the testes are cooler.	Testes add fluids to sperm to make semen. Sperm use this fluid as an energy source.	Testes is a tube which carries sperm out of the penis.	Structure and function of the male reproductive systems: - Testes: Where sperm cells are produced.
What is the function of the Scrotum?	The Scrotum is a bag of skin which holds the testes away from the body so the testes are cooler.	The Scrotum is where sperm cells are produced.	The Scrotum add fluids to sperm to make semen. Sperm use this fluid as an energy source.	The Scrotum is a tube which carries the semen to the penis.	- Scrotum: A bag of skin which holds the testes away from the body so the testes are cooler.
What is the function of the Glands?	The Glands add fluids to sperm to make semen. Sperm use this fluid as an energy source.	The Glands are the tubes which carries the semen to the penis.	The Glands allows insertion of semen into female.	The Glands are where sperm cells are produced.	- Glands: Adds fluids to sperm to make semen. Sperm use this fluid as an energy source.
What is the function of the Sperm duct?	The Sperm duct is a tube which carries the semen to the penis.	The Sperm duct adds fluids to sperm to make semen. Sperm use this fluid as an energy source.	The Sperm duct allows insertion of semen into female.	The Sperm duct is where sperm cells are produced.	- Sperm duct: Tube which carries the semen to the penis.
What is the function of the Penis?	The Penis allows insertion of semen into female.	The Penis is where sperm cells are produced.	The Penis carries eggs to the Uterus.	The Penis adds fluids to sperm to make semen.	- Penis: Allows insertion into female.
What is the function of the Urethra?	The Urethra is a tube which carries sperm out of the penis.	The Urethra is a tube which carries the semen to the penis.	The Urethra is a tube which carries eggs from the ovary to the Uterus.	The Urethra is a tube which carries the eggs to the Penis.	- Urethra: Tube which carries sperm out of the penis.
What is the function of the Ovary?	The Ovary is where eggs are stored and matured.	The Ovary is where fertilisation happens.	The Ovary is where sperm is produced.	The Ovary is where the baby develops.	Structure and function of the female reproductive systems: - Ovary: Where eggs are stored and matured.
What is the function of the Oviducts?	The Oviducts are tubes which carries eggs from the ovary to the Uterus.	The Oviducts are tubes which carries the semen to the penis.	The Oviducts are tubes which carries sperm out of the penis.	The Oviducts are tubes which carries the eggs to the Penis.	- Oviducts: Tube which carries eggs from the ovary to the Uterus.
What is the function of the Uterus?	The Uterus is where the baby develops.	The Uterus is a tube which carries eggs from the ovary.	The Uterus is where eggs are stored and matured.	The Uterus receives the semen.	- Uterus: Where the baby develops.
What is the function of the Cervix?	The Cervix is the opening of the Uterus.	The Cervix is where the baby develops.	The Cervix is a tube which carries eggs from the ovary.	The Cervix is where eggs are stored and matured.	- Cervix: The opening of the Uterus.
What is the function of the Vagina?	The Vagina receives the semen.	The Vagina is where the baby develops.	The Vagina is the opening of the Uterus.	The Vagina is where eggs are stored and matured.	- Vagina: Receives the semen.
What happens to the lining of the Uterus during the Menstrual cycle?	During the Menstrual cycle the blood rich lining of the Uterus thickens in readiness for pregnancy. If not used the lining is shed during menstruation.	During the Menstrual cycle the blood rich lining of the Uterus thins in readiness for pregnancy. If not used the lining is shed during menstruation.	During the Menstrual cycle the blood rich lining of the Uterus thickens in readiness for pregnancy. If used the lining is shed during menstruation.	During the Menstrual cycle the blood rich lining of the Uterus thins in readiness for pregnancy. If used the lining is shed during menstruation.	During the Menstrual cycle the blood rich lining of the Uterus thickens in readiness for pregnancy. If not used the lining is shed during menstruation. (without details of hormones)
How is a sperm cell structure linked to is function?	Sperm Cells have a pointed head which is streamlined for swimming and entering egg. The also have lots of mitrochondria to give energy needed to swim.	Sperm Cells have a pointed head to give lots of energy. The also have lots of mitrochondria to enter the egg.	Sperm Cells have a large food store for initial growth.	Sperm Cells have a large food store to give energy for swimming.	gametes: cell structure linked to function Sperm Cells: - Tail: to be able to swim. - Pointed head: streamlined for swimming and entering egg. - Lots of mitrochondria: energy needed to swim, mitrochondria need to release energy through respiration.
How is a egg cell structure linked to is function?	Egg Cells have a large food store for initial growth.	Egg Cells have a pointed head which is streamlined for swimming and entering egg. The also have lots of mitrochondria to give energy needed to swim.	Egg Cells have a large food store to give energy for swimming.	Egg Cells have a tail for swimming.	gametes: cell structure linked to function Egg Cells: - Large food store for initial growth
What happens during fertilisation?	Fertilisation occurs when the sperm's nucleus fuses with eggs nucleus.	Fertilisation occurs when the Zygote starts dividing.	Fertilisation occurs when the sperm enters the egg.	Fertilisation occurs when the ball of cells implants in the Uterus lining.	Fertilisation occurs when the sperm's nucleus fuses with eggs nucleus. This forms a zygote.
How does a gamete compare from a 'normal cell'?	Gametes only contain half the DNA of a 'normal' cell.	Gametes only contain twice the DNA of a 'normal' cell.	Gametes have the same amount of DNA as a 'normal' cell.	Gametes are twice the size of a 'normal' cell.	Gametes only contain half the DNA of a 'normal' cell.
Where must fertilisation occur for a pregnancy to be possible?	To result in a pregnancy fertilisation must occur in the Oviduct tubes.	To result in a pregnancy fertilisation must occur in the Vagina.	To result in a pregnancy fertilisation must occur in the Ovary.	To result in a pregnancy fertilisation must occur in the Uterus.	To result in a pregnancy fertilisation must occur in the oviduct tubes.
What is the ball of cells called when a zygote divides to copy itself?	The zygote divides and copies itself to produce a ball of cells called a embryo.	The zygote divides and copies itself to produce a ball of cells called a twin.	The zygote divides and copies itself to produce a ball of cells called a fetus.	The zygote divides and copies itself to produce a ball of cells called a baby.	The zygote copies and divides and itself to produce a ball of cells called a embryo.
What happens to the embryo for a women to become pregnant?	A women becomes pregnant when the embryo implants in the blood rich lining of the Uterus.	A women becomes pregnant when the embryo implants in the blood rich lining of the Vagina.	A women becomes pregnant when the sperm's nucleus fuses with eggs nucleus.	A women becomes pregnant when the zygote divides and copies itself.	A women becomes pregnant when the embryo implants in the blood rich lining of the Uterus.
What does an embryo develop into?	The embryo develops into a Fetus.	The embryo develops into a Baby.	The embryo develops into a Zygote.	The embryo develops into a Gamete.	The embryo develops into a fetus. It is called a fetus when it heart starts beating.
What does the placenta do?	The Placenta allows substances to cross from the mother's blood into the fetus and vice versa.	The Placenta allows mother's blood and substances to mix with the fetus'.	The Placenta allows substances to cross from the mother's blood into the fetus only.	The Placenta allows substances to cross from the fetus'; blood into the mother's only.	Part of the embryo develops into a placenta, which allows substances to cross from the mother's blood into the fetus, and vice versa.
What is the gestation period?	The gestation period is the time spend developing in the uterus.	The gestation period is the time taken for the sperm and egg nuclei to fuse.	The gestation period is the time taken for the sperm to swim to the egg cell.	The gestation period is the time taken for the embryo to start it's heart beating.	The time spend in the uterus is called gestation period. During this time cells continue to copy and divide allowing the fetus to grow.
What happens during birth?	During birth, the cervix dilates and the uterus contracts pushing the Fetus through the cervix and vagina.	During birth, the Uterus dilates and the Cervix contracts pushing the Fetus through Oviduct and Vagina.	During birth, the Uterus dilates and the Cervix contracts pushing the Fetus through Cervix and Vagina.	During birth, the Cervix dilates and the Uterus contracts pushing the Fetus through Oviduct and Vagina.	During birth, the cervix dilates and the uterus contracts pushing the Fetus through the cervix and vagina.
In order of size, smallest first, what are the 'units' of genetic information?	In size order the genetic information is arranged as Base Pairs => Gene => DNA => Chromosome => Nucleus	In size order the genetic information is arranged as DNA => Base Pairs => Gene=> Chromosome => Nucleus	In size order the genetic information is arranged as Base Pairs => Gene => DNA => Nucleus => Chromosome	In size order the genetic information is arranged as Gene => Base Pairs => DNA => Chromosome => Nucleus	In size order the genetic information is arranged as follow: Base Pairs => Gene => Chromosome => Nucleus
What is the shape of the DNA Molecule?	DNA is a long molecule that contains the genetic information for an organism. DNA is in the form of a double helix of 2 strands, joined through base pairs.				DNA is a long molecule that contains the genetic information for an organism. DNA is in the form of a double helix of 2 strands, joined through base pairs.
What gives the code to create proteins?	The order of the bases gives the code to create proteins/give characteristics.				The order of the bases gives the code to create proteins/give characteristics.
Compare genes and chromosomes.	Long strands of DNA are called chromosomes. Genes are sections of DNA that give instructions for a particular characteristic. Genes can be found at particular locations on the chromosome.				Long strands of DNA are called chromosomes. Genes are sections of DNA that give instructions for a particular characteristic. Genes can be found at particular locations on the chromosome.
What role did Pauling and Chargaff, have in the developing the DNA model?	Before the discovery of the DNA structure, Pauling had already discovered helical proteins and Chargaff had already discovered there were always equal numbers of bases A and T and also equal numbers of C and G.				Before the discovery of the DNA structure, Pauling had already discovered helical proteins and Chargaff had already discovered there were always equal numbers of bases A and T and also equal numbers of C and G.
What role did Watson and Crick have in the developing the DNA model?	Watson and Crick worked out the shape of the DNA double helix and how it could be replicated.				Watson and Crick worked out the shape of the DNA double helix and how it could be replicated.
What role did Franklin and Wilkins have in the developing the DNA model?	Franklin and Wilkins used the new technology of X-ray crystallography to make photographs of the DNA molecule and revealing its shape.				Franklin and Wilkins used the new technology of X-ray crystallography to make photographs of the DNA molecule and revealing its shape. Watson and Crick didn’t properly acknowledge the research carried out by Franklin and Wilkins they used to come up with their discovery.
What factors are needed for scientific understanding to progress?	The factors needed for scientific understanding to progress including the improvements in technology and building on discoveries by other scientists.				The factors needed for scientific understanding to progress including the improvements in technology and building on discoveries by other scientists.
What is heredity?	Heredity is the process by which genetic information is transmitted from one generation to the next.	Heredity is the process by which characteristics are determined by the environment.	Heredity is the process by which genetic information is randomly changed when copied.	Heredity is the process by which organisms grow.	Heredity is the process by which genetic information is transmitted from one generation to the next.
What is a species?	A species is a group of organisms who can produce offspring can also reproduce.	A species is a group of organisms who can produce offspring that are sterile.	A species is a group of organisms who can not produce offspring.	A species is a group of organisms with similar characteristics.	A species is defined as a group of organisms who's genetic information is compatible such that their offspring can also reproduce.
What happen if closely related species reproduce?	Similar species can reproduce, creating sterile offspring.				Similar species can reproduce, creating sterile offspring.
What is biodiversity?	Biodiversity is a measure of the number of species in an area.	Biodiversity is a measure of the number of organisms in an area.	Biodiversity is a measure of the number of layers in a food chain.	Biodiversity is a measure of the number of food chains in an area.	Biodiversity is a measure of the number of species in an area.
Why is maintaining biodiversity important?	the importance of maintaining biodiversity: means all the roles in the ecosystem are occupied, maintains genetic variation, the ecosystem has a greater stability, can save potential useful species from extinction.				the importance of maintaining biodiversity: means all the roles in the ecosystem are occupied, maintains genetic variation, the ecosystem has a greater stability, can save potential useful species from extinction.
What are genes banks for?	The use of gene banks is to preserve hereditary material.				The use of gene banks is to preserve hereditary material.
How can variation lead to natural selection?	the variation between species and between individuals of the same species meaning some organisms compete more successfully, which can drive natural selection				the variation between species and between individuals of the same species meaning some organisms compete more successfully, which can drive natural selection
What is the definition of a species?	A species is defined as a group of organisms who's genetic information is compatible such that their offspring can also reproduce.				A species is defined as a group of organisms who's genetic information is compatible such that their offspring can also reproduce.
Despite belonging to the same species, individuals often are different. What is this difference called and what two forms can it grouped into?	the variation between individuals within a species being continuous or discontinuous, to include measurement and graphical representation of variation				The differences between individuals within a species are called variation .
What is continuous variation?	The variation between individuals within a species being continuous when there are (near) infinite number of possibilities. Continuous variation is often measureable and with units.				The variation between individuals within a species being continuous when there are (near) infinite number of possibilities.
What is discontinuous variation?	Discontinuous variation is often described by words or integers. The variation between individuals within a species being discontinuous when fits into a distinct category				Discontinuous variation is often described by words or integers
How would a graph of discontinuous variation and continuous variation be different?	Discontinuous would be a bar graph of categories and their frequency. Continuous would be a histogram of artificially made groups and their frequency.				measurement and graphical representation of variation
How can a change in the environment cause evolution and even possibly extinction?	changes in the environment which may leave individuals within a species, and some entire species, less well adapted to compete successfully and reproduce, which in turn may lead to extinction				changes in the environment which may leave individuals within a species, and some entire species, less well adapted to compete successfully and reproduce, which in turn may lead to extinction

Mod	Number of Questions
0S	10
1B	10
1C	10
1P	10
BI	5