c. Pollination stage d. Fertilization A mature male Angiosperm gametophyte consists of __3__ total cells, while a mature female has total cells with nuclei. ___7___ __8__ Fertilization occurs only after pollination in Angiosperms. a. True b. false A pollen grain is a MATURE/ IMMATURE male GAMETOPHYTE/ SPOROPHYTE. Ovaries are MATURE/ fruits. Fruits are IMMATURE ovaries. IMMATURE MATURE/ Ovules (inside the ovaries) are MATURE/ IMMATURE seeds. Seeds are MATURE/ IMMATURE ovules. While one of the two sperm in a mature gametophyte fertilizes the egg, the other fuses with the ________ to form a triploid cell. This cell within the ovary develops into the _______ for the embryo. Egg; endosperm Egg; Polar nuclei; endosperm Polar nuclei; fruit The endosperm derives its nutrients from the parent _________ and stores it as food for the embryo. Gametophyte Sporophyte Egg cells Sporangium Why do plants undergo an alternation of generations? Plants cannot move around, so it is advantageous for them to have mobile gametophytes, or at the least, mobile male gametophytes, so they can outcross with genetically distant members of their species. This is one means by which genetic diversity in plants arises. Fill out the following chart: Examples Vein Cotyledon # of Petals Vascular Orientation Tissue Arrangement Poppy Branching 2 Multiples Arranged in a eudicots flowers veins (like the of 4 or 5 central ring leaves outside) orchids parallel 1 Multiples Scattered, not monocots of 3 really organized Define the following: Monoecious: separate male and female flowers can be found on the same plant Dioecious: separate plants either produce just male flowers or just female flowers Perfect flowers: have both stamen and carpels present within their flowers Imperfect flowers: have just a stamen or carpel present within their flowers Viruses are primarily composed of: Cells, nucleic acid, and proteins Nucleic acid, proteins, and dsDNA Lipids, nucleic acid, and dsDNA
c. Pollination stage d. Fertilization A mature male Angiosperm gametophyte consists of __3__ total cells, while a mature female has ___7___ total cells with __8__ nuclei. Fertilization occurs only after pollination in Angiosperms. a. True b. false A pollen grain is a MATURE/ IMMATURE male GAMETOPHYTE/ SPOROPHYTE. Ovaries are MATURE/ IMMATURE fruits. Fruits are MATURE/ IMMATURE ovaries. Ovules (inside the ovaries) are MATURE/ IMMATURE seeds. Seeds are MATURE/ IMMATURE ovules. While one of the two sperm in a mature gametophyte fertilizes the egg, the other fuses with the ________ to form a triploid cell. This cell within the ovary develops into the _______ for the embryo. Egg; endosperm Egg; Polar nuclei; endosperm Polar nuclei; fruit The endosperm derives its nutrients from the parent _________ and stores it as food for the embryo. Gametophyte Sporophyte Egg cells Sporangium Why do plants undergo an alternation of generations? Plants cannot move around, so it is advantageous for them to have mobile gametophytes, or at the least, mobile male gametophytes, so they can outcross with genetically distant members of their species. This is one means by which genetic diversity in plants arises. Fill out the following chart: Examples Vein Orientation Cotyledon # of Petals Vascular Tissue Arrangement eudicots Poppy flowers Branching veins (like the leaves outside) 2 Multiples of 4 or 5 Arranged in a central ring monocots orchids parallel 1 Multiples of 3 Scattered, not really organized Define the following: Monoecious: separate male and female flowers can be found on the same plant Dioecious: separate plants either produce just male flowers or just female flowers Perfect flowers: have both stamen and carpels present within their flowers Imperfect flowers: have just a stamen or carpel present within their flowers Viruses are primarily composed of: Cells, nucleic acid, and proteins Nucleic acid, proteins, and dsDNA Lipids, nucleic acid, and dsDNA
BIOL_211__5_6__Colbert_kashmola_EXAM_4_PRACTICE_ANSWERS.docx