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VESPR project

Bee Project
by

Natalia Cavagnaro

on 28 April 2010

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Transcript of VESPR project

VSPER Project
Honors Chemistry II
Alejandra Gonzalez & Natalia Cavagnaro
Period 4 General Characteristics Protection Worker Bee Communication What does molecular shape of chemicals have to do with the queen bee self-defense? How do bees communicate?

Bees dance around food at the same time that they leave scented trails. When a bee discover a source of foof in returns to the hive and dances in a circle to inform the others. From the smell the bee carries other can tell what it has found.
What are different ways in which the insects communicate among themselves?
Insect communicate through the five senses in order to acquire information about the environment and exchange information. Communication through taste and touch requires direct contact between individuals while vision, olfactation, and hearing allows information signals to propogate through longer distances.

Does the queen bee communicate in a particular way?
The pheremones the queen produces not only control reproduction but inform the hive that she is alive and well. It also keeps workers disinterested in mating and encourages drones to mate with her.
As in the human being, are there any chemicals that act as messengers between the bees?
Pheromones are a complex mixture of chemicals in different percentages. Bees have one of the most complez pheromonal system that transmits information to other individuals through direct or undirect contact.
What is the job of a worker bee within a colony?
Build and maintain the nest and care for the brood.
Build nest from wax secreted by the abdomen
Leave the hive to gather nectar, pollen, water, and propolis (used to seal exterior of nest)
Convert nectar to honey
clean the comb
feed larvae, drones, and the queen
ventilate the nest
defend colonies
What is the bee´s stinger made of so it can push through the skin?

The worker honey bees are armed with straight, barbed stingers, so that when a worker stings, the barbed, needlesharp organ remains firmly anchored in the flesh of its victim. In trying to withdraw the stinger, the bee tears its internal organs and dies shortly thereafter. How do bees reproduce?

Worker bees do not mate and do not have fully developed reproductive systems and therefore can not produce fertile eggs. The drones (male bees) only function is to mate with the queen bee who mates with about five drones every few days. Eggs that are to develop into female larvae are the only ones fertilized.


What is the name of the substance (chemical) produced by the bees in their sting glands?

The venom produces by honey bee´s is known as Apitoxin which contains amino acids that cause inflammation and act as anticoagulants. The main active component is Melitten which is anti-flammatory and induces the production of cortisol.
Do bee´s produce hormones? If so, what type of hormones do they produce? What function do these chemicals have?

Bees produce pheromones which trigger a social response in other members of the same specie. These chemicals can act outside the body and can be "categorized" in different types which induce different behaviors in recieving individual (sex pheromones, trail pheromones, alarm pheromones etc)

What protects the queen bee from the attack of the worker bees?

When daughter queen bees are born the queen kills them making herself vital to the existence of the hive. Because of this, worker bees protect her. A part from this, her stinger is more "resistant".
Do queen bees produce similar chemicals to the ones produced by plants for self protection? What type of substances are these, if any?

The queen produces chemicals similar to plants in order to protect herself. These substances are known as QMP and QRP. Queen mandibular pheromone (QMP) affects the social behavior of the hive (social behavior, maintenance, swarming, mating behavior, and inhibition of ovary development in worker bees). Queen retinue pheromone (QPR) is composed by QMP compunds combining with five different compounds that function to attract worker bees.

Queen Bee What is the job of a queen bee within the colony? The queen is the only sexually productive female in the colony and thus is the mother of all drones, workers, and future queens What is the average lifetime of a queen bee compared to the one of a worker bee?
Queen 1-5 years
Workers: 6 weeks
Drones: die after mating with the queen bee. How can the queen bee be identified?
Anatomically, the queen is strikingly different from the drones and workers. Her body is long, with a much larger abdomen than a worker bee. Her mandibles, or jaws, contain sharp cutting teeth, whereas her offspring have toothless jaws. How does a queen bee become the queen of a hive?

The process in which a queen is replaced is known as supersedure. This process begins either due to olf age, sickness, or failure as a queen. As the queen becomes older her pheromone output decreases and worker bees no longer recognize her as the queen. The new queens develope from larvae selected by worker bees that are fed royal jelly in order to become sexually mature.
Are queen bees raised under different conditions than the worker bees?
Yes, queen bee's are fed a diet based exclusively on royal jelly. Does the queen bee have a sting?
The queen has a curved, smooth stinger that she can use repeatedly without endangering her own life What happens if the queen bee is removed from the hive or dies?
If the queen suddenly dies the qorkers flood several cells with larva with royal jelly to "produce" a new queen. These "emergency" queens are usually smaller and less prolific. When a new queen is born, both queen fight until one dies and the other is queen.
How many queen beeslive in a colony?
Only one. Sources "Anatomy of the Bee." Beekeeping at C.A.S.E.E. Center. The Center for Agriculture, Science, and Enviromental Education, n.d. Web. 28 Apr 2010. <http://www.captted.com/bees/beemanual/cb05.htm>.

Barnett, Peggy. "Queen Bees and Worker Bees." Helium: where knowledge rules. Helium Inc., n.d. Web. 28 Apr 2010. <http://www.helium.com/items/695817-queen-bees-and-worker-bees>.

Buchmann, Stephan. "Honeybee Apis Mellifera." National Geographic. National Geographic Society, n.d. Web. 28 Apr 2010. <http://animals.nationalgeographic.com/animals/bugs/honeybee.html>.

Crowhurst, Larry. "Everything About." Honey Bee. Microsoft® Encarta® Online Encyclopedia , 2007. Web. 28 Apr 2010. <http://www.everythingabout.net/articles/biology/animals/arthropods/insects/bees/honey_bee/>.

Hadley, Debbie. "About.com: Insects." Honey Bees - Communication Within the Honey Bee Colony. The New York Times Company, 2010. Web. 28 Apr 2010. <http://insects.about.com/od/antsbeeswasps/p/honeybeecommun.htm>.

Huston, L.J. "Honeybee Facts." The Back Yard Beekeepers Association. BYBK, n.d. Web. 28 Apr 2010. <http://www.backyardbeekeepers.com/facts.html>.

Meyer, John R. "Insect Communication." General Entomology. NC State University, 16 Jan 2006. Web. 28 Apr 2010. <http://www.cals.ncsu.edu/course/ent425/tutorial/Communication

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