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WorksheetsI6 - Plant Reproduction and Growth
Total questions: 20
Worksheet time: 10mins
Which statement best describes the role of the flower in a plant’s life cycle?
It increases photosynthesis to produce more glucose
It stores extra water for the plant
It contains structures for sexual reproduction
It produces hormones that control stem growth
The anther and filament together make up the stamen. What is the primary function of the stamen?
Producing nectar
Making pollen
Supporting seeds
Receiving pollen
A scientist observes that a plant produces large, bright flowers with a sweet scent. What is the most likely pollination strategy?
Wind pollination
Self-pollination only
Water pollination
Animal pollination
Pollination must occur before fertilization. Which event describes fertilization?
Pollen grains landing on the stigma
Formation of a seed coat
Pollen sperm fusing with the ovule
A seed sprouting into a seedling
Why is genetic variation typically higher in plants that reproduce sexually than in plants that reproduce asexually?
Offspring inherit DNA from two parent plants
Sexual reproduction happens more quickly
Seeds always grow in different habitats
Asexual reproduction removes mutations
Which structure becomes the fruit after fertilization?
Anther
Petal
Ovary
Stigma
A student claims that seed dispersal increases the chance of a plant species surviving. Which evidence best supports this claim?
Dispersal moves seeds away from the parent, reducing competition
Seeds need sunlight to germinate
Plants that grow close together get taller
Most pollinators avoid crowded plants
A species of grass produces very small, dull-colored flowers with no scent or nectar. What adaptation explains these traits?
Attracting bees
Preventing fertilization
Wind pollination
Storing water
Which condition is most essential for germination across all seed types?
Direct sunlight
Nutrient-rich soil
Water absorption
High temperatures
The embryo inside a seed uses its cotyledon(s) for what purpose?
Protection from pollinators
Storing food for early growth
Producing nectar
Attaching the seed to the fruit
A plant species uses burrs that attach to animal fur. What advantage does this dispersal method provide?
Seeds rely less on genetic variation
Seeds can travel long distances
Seeds require less water
Seeds grow faster
In an investigation, students remove the anthers from a flower. How will this MOST likely affect reproduction?
The plant will not produce nectar
Pollinators will avoid the plant
The plant cannot produce pollen for fertilization
The plant will produce extra seeds
A plant can reproduce using runners (like strawberries). Which type of reproduction is this?
Sexual reproduction
Asexual reproduction
Fertilization
Germination
Which is a major difference between sexual and asexual reproduction in plants?
Only sexual reproduction requires energy
Asexual reproduction produces genetically identical offspring
Only asexual reproduction uses flowers
Seeds can form only in asexual reproduction
Students test how light affects germination. Seeds are placed in light and dark conditions, both with water. What result is most likely?
Only light-grown seeds will germinate
Only dark-grown seeds will germinate
Seeds in both conditions will germinate
Neither will germinate without light
Which structure of the flower directly supports the transfer of pollen to the ovules?
Filament
Petal
Style
Sepal
Why do many fruits contain sweet pulp surrounding their seeds?
It prevents animal predation
It increases water storage
It encourages animals to eat the fruit and disperse seeds
It increases the seed’s energy supply
A scientist crosses two different varieties of pea plants. What is the main purpose of this crossing?
To encourage asexual reproduction
To create offspring with specific traits
To increase seed coat thickness
To speed up seed germination
A diagram shows pollen that is very light and carried easily by air currents. What conclusion can be drawn?
The plant depends on insects
The plant uses wind for pollination
The seeds will need water to germinate
The plant produces fruit underground
Which process completes the full plant life cycle?
A seedling grows into a mature plant
A flower opens
Seeds are produced that can grow into new plants
A seed absorbs water
