BIO 152 - EXAM 1 LEARNING
OBJECTIVES WITH CORRECT
ANSWERS 2025
Understand the relationship between indeterminate growth and
the plant lifestyle correct answers >> Intermediate growth
refers to continuous growth throughout an organisms life.
Therefore, it is beneficial for plants because it is a key adaptation
that allows plants to thrive in diverse environments by
continuously adjusting their size, shape, and resource allocation
in response to the environment.
How does being indeterminate support plants that are large or
very old? correct answers >> Indeterminate: the ability of
certain plants to continue growing throughout their lifespan
without a limit on their size or age. This characteristic supports
large or very old plants by providing flexibility, resilience, and
longevity needed to thrive in diverse environments and fulfill
important ecological functions within ecosystems.
How does the ancestry of plants in water impact plants today?
correct answers >> Structural Adaptations, Vascular Tissue,
Reproductive Strategies (pollen/spores), (waxy) Cuticle and
Stomata (pores), Mutualistic Relationships, Evolutionary Diversity
Explain how the move to land provided new opportunities and
also challenges to plants. correct answers >> Advantages:
access to light (unfiltered sun), more CO2 and O2, nutrient rich
soil.
, Diadvantages: less buffered, lack of structural support,
reproduction on land is harder, scarcity of water, inaccessible
nutrients in the soil, more UV.
Explain why charophyte algae are thought to be closely related to
plants but are not the ancestors of modern day plants correct
answers >> Green algae called charophytes are the closest
relatives of land plants. Comparisons of both nuclear and
chloroplast genes point to charophytes as the closest living
relative of land plants.
Diagram alternation of generations making sure you use the
terms: Alternation of generations, diploid, haploid, sporophyte,
gametophyte, eggs and sperm, meiosis andmitosis. correct
answers >>
Explain why 5 derived traits define being a plant. correct
answers >> Alternation of generations, walled spores produced
in sporangia, multicellular gametangia, multicelluar dependent
embryos, apical meristems (growth/branching)
Discuss why even though bryophytes have a cuticle, they are
generally only found in damp environments. correct answers
>> cuticle is relatively thin and does not provide as effective a
barrier against desiccation as the cuticles found in vascular
plants, limited ability to transport water and nutrients, reliance on
water for reproduction (flagellated sperm require water), growth
habit, and size is limited by lack of vascular system and support
tissues.
Draw a rough tree for the relationships between the Bryophytes,
seedless vascular plants, gymnosperms and angiosperms, placing
OBJECTIVES WITH CORRECT
ANSWERS 2025
Understand the relationship between indeterminate growth and
the plant lifestyle correct answers >> Intermediate growth
refers to continuous growth throughout an organisms life.
Therefore, it is beneficial for plants because it is a key adaptation
that allows plants to thrive in diverse environments by
continuously adjusting their size, shape, and resource allocation
in response to the environment.
How does being indeterminate support plants that are large or
very old? correct answers >> Indeterminate: the ability of
certain plants to continue growing throughout their lifespan
without a limit on their size or age. This characteristic supports
large or very old plants by providing flexibility, resilience, and
longevity needed to thrive in diverse environments and fulfill
important ecological functions within ecosystems.
How does the ancestry of plants in water impact plants today?
correct answers >> Structural Adaptations, Vascular Tissue,
Reproductive Strategies (pollen/spores), (waxy) Cuticle and
Stomata (pores), Mutualistic Relationships, Evolutionary Diversity
Explain how the move to land provided new opportunities and
also challenges to plants. correct answers >> Advantages:
access to light (unfiltered sun), more CO2 and O2, nutrient rich
soil.
, Diadvantages: less buffered, lack of structural support,
reproduction on land is harder, scarcity of water, inaccessible
nutrients in the soil, more UV.
Explain why charophyte algae are thought to be closely related to
plants but are not the ancestors of modern day plants correct
answers >> Green algae called charophytes are the closest
relatives of land plants. Comparisons of both nuclear and
chloroplast genes point to charophytes as the closest living
relative of land plants.
Diagram alternation of generations making sure you use the
terms: Alternation of generations, diploid, haploid, sporophyte,
gametophyte, eggs and sperm, meiosis andmitosis. correct
answers >>
Explain why 5 derived traits define being a plant. correct
answers >> Alternation of generations, walled spores produced
in sporangia, multicellular gametangia, multicelluar dependent
embryos, apical meristems (growth/branching)
Discuss why even though bryophytes have a cuticle, they are
generally only found in damp environments. correct answers
>> cuticle is relatively thin and does not provide as effective a
barrier against desiccation as the cuticles found in vascular
plants, limited ability to transport water and nutrients, reliance on
water for reproduction (flagellated sperm require water), growth
habit, and size is limited by lack of vascular system and support
tissues.
Draw a rough tree for the relationships between the Bryophytes,
seedless vascular plants, gymnosperms and angiosperms, placing
