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WorksheetsIGCSE 0610 16.1 - 16.3 Asexual, sexual & Plant reproduction
Total questions: 40
Worksheet time: 28mins
(a)
(a)
Which of these are characteristics of Asexual reproduction?
Produces offspring of a different species
Needs male and female gametes
Produces offspring genetically identical to the parent
Needs two parents
Only needs one parent
The diagrams show examples of reproduction, which show Asexual reproduction?
Sperm and egg cells have a nucleus which is haploid.
State the number of chromosomes in a human haploid nucleus.
(a)
(a)
(a)
Organisms pass on their genetic information in their gametes.
State the name of the cell formed when the nuclei of two gametes join together
(a)
What is an advantage of sexual reproduction for a population of flowering plants in the wild?
A disease is less likely to affect the whole population
Large numbers of offspring can be produced quickly
Pollen can easily be transferred within the same flower
The offspring show genetic variety
Which statement about sexual reproduction is correct?
Gametes are produced by mitosis only
Gametes fuse together to form a zygote
Genetically identical nuclei are formed
It occurs in animals, but not in plants
A
B
C
D
Fertilisation is the fusion of the nuclei of a male and female gamete, resulting in a zygote.
State the number of chromosomes present in a human female gamete
(a)
Fertilisation is the fusion of the nuclei of a male and female gamete, resulting in a zygote.
State the number of chromosomes present in a human zygote
(a)
Which of these are correct for Sexual reproduction?
involves gametes
always involves only one parent
results in the formation of a zygote
includes the process of fertilisation
only occurs in animals
What process involves the fusion of the nuclei of two gametes (sex cells) to form a zygote and the production of offspring that are genetically different from one another
(a)
What process results in the production of genetically identical offspring from one parent?
(a)
State the name of the transfer of pollen grains from the anther of a flower to the sigma of the same flower or different flower on the same plant
(a)
State the name of the transfer of pollen grains from the anther of a flower to the sigma of a flower on a different plant of the same species
(a)
Pollen grains grow tubes, which contain haploid male gamete nuclei.
One of these male gamete nuclei fuses with the female gamete.
State the part of the flower that contains the female gamete.
(a)
A
B
C
D
(a)
fertilisation
pollen tube growth
pollination
seed dispersal
A plant develops seeds and fruit after pollination has occurred.
Name one agent of pollination
(a)
The pollen grains of wind and insect pollinated flowers are different.
Suggest one feature that would help pollen grains be dispersed by wind
(a)
(a)
Where does fertilisation occur in a flowering plant?
anther
bud
ovule
stigma
Which part of a flower produces pollen grains?
anther
ovary
sepal
petal
Which features are characteristic of insect-pollinated flowers?
Bright petals, large feathery stigmas
Bright petals, rough sticky pollen
large feathery stigmas, nectaries
small light pollen, nectaries
(a)
State the name of the part in the diagram that protects the bud of the flower
(a)
What kind of pollination are these flowers?
wind
water
animal
insect
State the name of the transfer of pollen grains from the anther to the stigma
(a)
Which of these environmental conditions are needed for a seed to germinate?
Light
Water
Oxygen
Temperature below 10 degrees celsius
Temperature above 10 degrees celsius
How are the dandelion fruits dispersed?
Wind
Animals
Insects
Water
Which of these factors make it an advantage to plants to disperse their seeds far from the parent?
to colonise new areas
to share the resources of the parent
to prevent overcrowding
to prevent competition with the parent
to find new mates
Which if these features would be an advantage to an insect pollinated pollen grain
covered in spikes
light
large
small
Which of these are an advantage of Asexual reproduction?
Offspring have greater genetic variation
Offspring retain the genetic adaptions of the parent
Crops can have the same valuable characteristics for farming
Greater variation mean adaptability to changing environmental conditions
Large numbers of offspring can be produced quickly
Which of these are an advantage of Sexual reproduction?
Offspring have greater genetic variation
Offspring retain the genetic adaptions of the parent
Crops can have the same valuable characteristics for farming
Greater variation mean adaptability to changing environmental conditions
Large numbers of offspring can be produced quickly
Which of these are disadvantages of Sexual reproduction
Genetic disadvantages are passed onto offspring eg: susceptibility to a disease
Have to spend time and energy looking for a mate
Offspring may have variation which does not give an advantage when the environmental conditions change
Energy may be used producing gametes which do not get fertilised and develop into offspring
Lack of genetic variety means it is harder for natural selection to happen in response to environmental changes
Which of these are disadvantages of Asexual reproduction
Genetic disadvantages are passed onto offspring eg: susceptibility to a disease
Have to spend time and energy looking for a mate
Offspring may have variation which does not give an advantage when the environmental conditions change
Energy may be used producing gametes which do not get fertilised and develop into offspring
Lack of genetic variety means it is harder for natural selection to happen in response to environmental changes
