Questions with Guaranteed Pass
Solutions 2025/2026 Updated.
Alternation of generations - Answer A life cycle, typical of plants, in which a diploid
sporophytes (spore-producing) generation alternates with a haploid gametophyte (gamete-
producing) generation
Sporophyte - Answer The multicellular diploid stage in the life cycle of a plant; produces
haploid, asexual spores through mitosis. Dominant form of the life cycle.
Gametophytes - Answer The multicellular haploid stage in the life cycle of plants
Multicellular Embryos - Answer Distinguishes plants from other photosynthetic organisms
Chlorophyll - Answer Green pigment which plays a crucial role in photosynthesis
Diploid - Answer Cells which contain two complete sets (2n) of chromosomes
Haploid - Answer Cells which contain only one complete set of chromosomes (n)
Gametes - Answer Zoospores - Sperm (male) and eggs (female)
Zygote - Answer Fertilized egg (diploid)
Embryo - Answer (Diploid) Developed from a Zygote which matures into a sporophyte
Photosynthetic Protists - Answer Ancestors of plants
Stoneworts - Answer (green algae) plants closest living relatives
(contain the same type of chlorophyll, store food as starch, and have cell walls made of
cellulose)
Mitosis - Answer Division of a parent cell, producing 2 identical daughter cells
Meiosis - Answer 2 divisions of a germ cell, producing 4 non-identical gametes
, Cuticle - Answer Covers the surfaces of leaves and stems and limits the evaporation of water
(waxy)
Stomata - Answer Pores in leaves and stems that open to allow gas exchange but close when
water is scare, reducing the amount of water lost to evaporation
Lignin - Answer A stiffening substance which is a rigid polymer that impregnates the
conducting cells and supports the plant body. Helping to expose maximum surface area to
sunlight. (most nonvascular plants lack this)
Nonvascular Plants - Answer Also known as bryophytes which require moist environments to
reproduce, thus straddle the boundary between aquatic and terrestrial life. Lack conducting
structures.
Vascular Plants - Answer Also known as tracheophytes has been able to colonize drier
habitats. Has conducting vessels for transporting liquids.
Rhizoids - Answer Rootlike anchoring structures for nonvascular plants which bring water
and nutrients to the plant body.
Conducting Vessels - Answer (Xylem and Phloem)
Transports water, minerals, nutrients (especially sugars), and hormones throughout a vascular
plant.
Protective structures for gametes - Answer Archegonium (female egg) and Antheridium
(male sperm)
Heteromorphic - Answer Different overall appearance of the gametophyte and sporophyte
Isomorphic - Answer Similar overall appearance of the gametophyte bad sporophyte
Gymnosperms - Answer nonflowering plants;
Conifers (Evergreens, Spruce, Cypress), Cycads, Ginkgo, Gnetophytes
Angiosperms - Answer Flowering plants;
Monocots (grass, grains, lilies) and Dicots