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AP Biology, Chapter 38 Angiosperm Reproduction and
AP Biology, Chapter 38 Angiosperm Reproduction and

... One sperm + polar nuclei  3n nucleus 3n nucleus divides to form a multinucleate cell = endosperm Nourishes the embryo Stores nutrients for the seedling In dicots, transfers nutrients to the cotyledons 8. Explain the adaptive advantage of double fertilization in angiosperms. ...
Plant Study Guide
Plant Study Guide

... a.) Why are they better suited to drier climates than Bryophytes? b.) What criteria is used to classify them? c.) Name 3 examples. 11. Give an example of a Pterophyte. a.) List 4 of their characteristics. b.) Do they have “swimming sperm” or “flying sperm”? c.) Draw and label a frond and sori. 12. G ...
Chapter 31 FUNGI
Chapter 31 FUNGI

... 27. Angiosperm (tip of growing pollen tube headed towards egg). Stigma – style – ovary – micropyle ...
Lecture Outline
Lecture Outline

... o The pollen tube penetrates the ovule, and one sperm produced within the tube fertilizes the egg nucleus, producing a diploid zygote, which undergoes mitosis and develops into an embryo plant o Another sperm nucleus from the pollen tube combines with two nuclei in the embryo sac to produce a tripl ...
Animal Development
Animal Development

... egg, the sperm releases digestive (hydrolytic) enzymes from acrosome.  Sperm digest jelly coat and membranes fuse.  Sperm nucleus is released into the egg.  Fast block to polyspermy  egg depolarizes (Na+ in) to prevent double fertilization. ...
Document
Document

... • Reproduction is the formation of new individuals • The reproductive system produces, stores and releases specialized sex cells known as gametes • Puberty – period of rapid growth and sexual maturation during which the reproductive system becomes fully functional; hormones are released to start thi ...
The Diversity of Plants
The Diversity of Plants

... and egg are called cones.  Most associate cones with pine trees. ...
LE - 6 - Plant Reproduction
LE - 6 - Plant Reproduction

... A structure that contains an embryo, stored food (in the cotyledon), and a protective coat. Because the seed is so well protected and fed, the plant grown from it will grow faster ...
Seed Plants
Seed Plants

... Angiosperm Life Cycle Double fertilization – one sperm unites with egg – one sperm unites with polar nuclei develops into endosperm (3n)  Fruit and Seed development – ovule = seed – ovary = fruit ...
flowering plants.
flowering plants.

... – animals feed on pollen or nectar – pollen is spread from plant to plant in process ...
Parade through the Plants
Parade through the Plants

... megaspore nourished by nucellus. This contains the egg. ...
Chapter 46 - LBCC e
Chapter 46 - LBCC e

... Cell differentiation is the specialization of cells in structure and function Morphogenesis is the process by which an animal takes shape After fertilization, embryonic development proceeds through cleavage, gastrulation, and organogenesis • Important events regulating development occur during ferti ...
Fertilization and Development
Fertilization and Development

... • Implantation is the process where the blastocyst (morula transformed into a structure with a hollow inner cavity) attaches itself to the wall of the uterus • The cells of the blastocyst then begin the process of specialization, called differentiation ...
Plants
Plants

... Life cycle of an Angiosperm (p.159) ...
General Plant Life Cycle
General Plant Life Cycle

... • Male Stamen – Surrounds carpal – Filaments: long stalks – Anther: produces pollen (male gametophyte) ...
KINGDOM PLANTAE - Bio-Guru
KINGDOM PLANTAE - Bio-Guru

... of gametes). This produces a diploid zygote. The zygote will divide and grow and differentiate to become a new embryonic plant with root, stem, and leaf. Ultimately it will become an adult plant. 6. The other sperm cell unites with the central cell. This is a second syngamy! This produces a triploid ...
Seed Reproduction.pptx
Seed Reproduction.pptx

... • Produces MALE and FEMALE cones ...
Kingdom Plantae
Kingdom Plantae

... Kingdom Plantae ...
Reproduction in Flowering Plants
Reproduction in Flowering Plants

... Reproduction in Flowering Plants ...
PLANT DIVISIONS
PLANT DIVISIONS

... • Flower will develop into fruit that is used for seed dispersal via wind, water, or animal. • Pollination can be by wind, bird, bat, insect. • Most advanced (recent) • Gametophyte is reduced and within the flower. • Most diverse: grasses to trees ...
Chapter 34
Chapter 34

... • One sperm fertilizes the egg while the other sperm fuses with the polar nuclei to form endosperm. • This process of using two sperm cells in fertilization is called double fertilization. ...
Human Reproduction Notes
Human Reproduction Notes

... that contains vitamins and fructose to nourish sperm. The fluid also contains prostaglandins, hormones that are believed to cause contractions in the female reproductive tract to help get sperm to their ‘target’. ...
Part B: Sexual Reproduction
Part B: Sexual Reproduction

... egg, fertilisation may occur. Fertilisation occurs in the oviduct of the female. At fertilisation a single sperm will fertilise a single egg. The two haploid cells fuse their nuclei together to form a diploid cell (the zygote). The zygote will begin dividing to produce an embryo. The embryo implants ...
Embryo Sac
Embryo Sac

... – Record your answer and reasoning for any 10 specimens, making sure to write the answer on the line that matches the ...
Four Types of Plants
Four Types of Plants

... • need water to reproduce ...
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Fertilisation



Fertilisation (also known as conception, fecundation and syngamy) is the fusion of gametes to initiate the development of a new individual organism. In animals, the process involves the fusion of an ovum with a sperm, which first creates a zygote and then leads to the development of an embryo. Depending on the animal species, the process can occur within the body of the female in internal fertilisation, or outside (external fertilisation). The cycle of fertilisation and development of new individuals is called sexual reproduction.
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