New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Bio 1306 Week 6 Notes

by: Kimberly Rodriguez

Bio 1306 Week 6 Notes Bio 1306

Kimberly Rodriguez
GPA 4.0

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

These notes cover 3/14/16-3/16/16
Organismal Biology
Class Notes
Organismal Biology, bio1306, Biology
25 ?




Popular in Organismal Biology

Popular in Science

This 3 page Class Notes was uploaded by Kimberly Rodriguez on Sunday March 20, 2016. The Class Notes belongs to Bio 1306 at University of Texas at El Paso taught by in Spring 2016. Since its upload, it has received 12 views. For similar materials see Organismal Biology in Science at University of Texas at El Paso.


Reviews for Bio 1306 Week 6 Notes


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 03/20/16
Organismal Biology Dr. Carl S. Lieb 3/14/2016 & 3/16/2016 Gymnosperm By cones Reproduction -Female Cones Cluster of megasporophylls (Ex: pine cones) -Male Cones Often the same as plants or female cones, cluster of microsporophylls Angiosperms (flowering Have flowers and fruits. Are wind and animal pollinated. plants) Ovules are enclosed in tissue of parent sporophyte (carpels). Heterosporours, non-motile. Four sets of modified leaves:  Sepals: enclose & protect the other floral part during bud stage, small and green  Petals: inside sepals, colorful if pollinated by animals. Small/absent if pollinated by wind.  Stamens: Inside petals. Consists of stalk (filament) & a sac that contains microsporangia (anther).  Carpels: Fused into a pistil. At the base of the pistil is the ovary. Inside the ovary there are ovules. On top of the pistil is a sticky part (stigmata) on which pollen sticks. If a species has all four floral organs (sepals, petals, stamens, Complete Flower carpels) Incomplete Flower If something is missing. (Ex: grass is missing petals) Perfect Flower If a species has flowers with stamens and carpels. Imperfect Flower (Dioecious) If a species only has pistils and not stamens or vice versa. Monoecious Have male and female flowers (Ex: corn) Angiosperm Phylogeny 1) Amborella Small group 2) Water Lilies Aquatic plants Small group 3) Star Anise 4) Magnoliids Trees in southern U.S. characterized by white flowers 5) Monocots Have one seed leaf (monocotyledonous). Include grasses, lilies, yuccas, and palm trees. 6) Eudicots Two seed leaves (dicotyledonous). True dicot. Organismal Biology Dr. Carl S. Lieb 3/14/2016 & 3/16/2016 Double Fertilization in 1- Meiosis occurs in each ovule (megasporangium) Angiosperms forming four haploid megaspores -Formation of female 2- 3 of the 4 megaspores die gametophyte 3- Remaining megaspore divides and produces a 7 cell, 8 nucleate gametophyte (embryo sac) 4- One of the cells is larger and has 2 nuclei (polar nuclei) 5- One of the cells is exposed to a part of the embryo sac (the microphyle). This one acts as an egg cell. 1- Wall of microspore thickens -Formation of male 2- Divides to produce a 2 cell, 2 nucleus stage called gametophyte pollen grain. One nucleus is the generative and the other is the tube nucleus. Pollen grains are released to be transported by wind or animals Ch 24: The Plant Body Meristems Areas on the plant that constantly grow. Apical Meristems- tips of stems or roots Indeterminate growth- continuous growth Cell Walls The cell wall is made of cellulose. When plant cells divide a new cell wall forms between daughter cells. Pluripotent Able to develop into any type of plant cell if damage occurs Toripotent A cell from anywhere can be used to generate a new clone. The Root System  Organs: roots  Functions: Absorbs water & minerals, and converts sugar into starch and stores it. The Shoot System  Organs: stems and leaves  Functions: leaves form sporophylls for reproduction, stems support plant against gravity, orient it towards the sunlight, connect leaves and roots, may be photosynthetic. Organismal Biology Dr. Carl S. Lieb 3/14/2016 & 3/16/2016 The Dermal Tissue System Forms epidermis.  Stomata- holes that allow gas exchange  Trichomes- leaf hairs, protect against UV rays, and used for mechanical defenses from herbivory insects  Root hairs- cylindrical projections off the roots that increase absorptive surface  Cuticle- waxy layer covering the surface of the plant body to reduce evaporative water loss The Ground Tissue System  Parenchyma- abundant. In leaves/stems they perform photosynthesis. In roots they store starch, in seeds it stores proteins.  Collenchyma- elongated cells with cell walls that are thick and thin. Provide structural support to stems.  Sclerenchyma- elongated cells (fibers) or short/stubby cells (sclerids) with thick cell walls that contain lignin.  Lignin- gives rigidity to stems The Vascular Tissue Transports substances within plant. System  Xylem- transports water and nutrients to the plant from the roots (most cells are dead but they still function)  Phloem- composed of living cells, transports sugars to where they will be used for energy or storage (sinks). Can carry substances in different directions. Arranged into vascular bundles. Primary/Secondary Dicots and conifers can have secondary growth by the Growth vascular cambium which is between the xylem and the phloem.  Cork cambium- cork cells that waterproof and produce bark.  Tree rings- produced because xylem cells during the summer are longer than during the spring/winter which creates growth layers.  Girdling- severs the phloem and destroys the ability to pick up water. Carving is hurtful but repairable by pluripotent cells.


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

Kyle Maynard Purdue

"When you're taking detailed notes and trying to help everyone else out in the class, it really helps you learn and understand the I made $280 on my first study guide!"

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Parker Thompson 500 Startups

"It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.