{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

plant project - ovulate cones • heterosporous tree •...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Plant Groups Origin and Structure Of Reproduction Mode Of Nutrition Of Embryo Structure and Mode Of Transport Of Sperm Bryophytes • some are bisexual • female: archegonia- hold egg • male: antheridia- produce sperm • sexual reproduction • embryo retained in archegonia • layers of placental transfer cells and get nutrients to the embryo • swim through film of water to eggs • flagellated • enter archegonia in response to chemical attraction Seedless Vascular Plants • Sporangium- single type spore- bisexual gametophyte-eggs or sperm • Mega sporangium- megaspore-female gametophyte-eggs • Heterosexual & bisexual • Mega sporangium- microspore-male gamete-sperm • embryo retained in archegonia • layers of placental transfer cells help transport nutrients to embryo • swim through film of water to eggs • flagellated Gymnosperms • female: large
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ovulate cones • heterosporous tree • sexual reproduction • megaspore mother cell • male: small pollen cones • ovule becomes seed consisting of embryo, food supply, and seed coat • pollen grain • enters micropyle and germinates, forming pollen tube that digests through megasporang ium • 2 sperm cells develop and unite with female gametophyte Angiosperms • sexual reproduction in flower • male: stamen; filament: stalk; anther: pollen produced • female: carpel; stigma: receives pollen; style: leads to ovary; ovary: contains 1 or more ovules • fruit-mature ovary • embryo and food in seed • seed contains embryo, endosperm, remnants of sporangium, and seed coat • pollen- two sperm • tube cell produces pollen tube • pollination occurs • sperm nuclei discharged in each ovule...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern