Endosperm: Definition, Function & Development

An error occurred trying to load this video.

Try refreshing the page, or contact customer support.

Coming up next: Flowering Plants: Life Cycle & Examples

You're on a roll. Keep up the good work!

Take Quiz Watch Next Lesson
Your next lesson will play in 10 seconds
  • 0:01 Flowers and Seeds
  • 0:36 Pollination & Double…
  • 1:35 Seeds and Fruits
  • 2:19 Lesson Summary
Save Save Save

Want to watch this again later?

Log in or sign up to add this lesson to a Custom Course.

Log in or Sign up

Speed Speed

Recommended Lessons and Courses for You

Lesson Transcript
Instructor: Angela Lynn Swafford

Lynn has a BS and MS in biology and has taught many college biology courses.

Of all the times you've eaten popcorn, how many times have you actually stopped to think about what you're eating? Popcorn is a seed in which the center of the endosperm has been turned inside out. Learn more about endosperms in this lesson.

Flowers & Seeds

Angiosperms are the only plants that produce flowers and fruits. Flowers are responsible for reproduction and will produce seeds protected by fruits. Seeds have three major parts: an embryo, or baby plant; an endosperm, or the baby plant's food source; and a seed coat, which surrounds and protects the baby and its food.

Before the three parts of a seed can develop, two things have to happen within the carpel, or female reproductive structure of a flower: pollination and double fertilization.

Pollination & Double Fertilization

A pollen grain is a protective structure that contains sperm cells and is produced by the male reproductive part of a flower called the stamen. Pollination occurs when a pollen grain from one flower lands on the stigma, or sticky platform for catching pollen, of another flower's carpel. Once pollination occurs, a pollen tube will develop from the pollen grain and grow down the style of a carpel to its ovary.

An ovary contains at least one ovule. Inside an ovule, cells divide to produce an egg and two other cells called polar nuclei. Two sperm cells are released into an ovule from a pollen tube. One sperm cell fuses with the egg to produce a zygote, or first cell of a baby plant and the second sperm cell fuses with the two polar nuclei, and the whole structure divides to produce the endosperm. The process of producing the zygote and endosperm is double fertilization.

To unlock this lesson you must be a Study.com Member.
Create your account

Register to view this lesson

Are you a student or a teacher?

Unlock Your Education

See for yourself why 30 million people use Study.com

Become a Study.com member and start learning now.
Become a Member  Back
What teachers are saying about Study.com
Try it risk-free for 30 days

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Create an account to start this course today
Try it risk-free for 30 days!
Create an account