Comments on: Individual Cells Isolated From Biological Clock Can Keep Daily Time, But Are Unreliable

By: Devin Platts 1st

Devin Platts 1st — Mon, 10 May 2010 15:00:43 +0000

1.The neurons get out and capriciously start oscillating again.
2. The glow of the neurons shows you that it is working.
3.Alexis Webb walked into Washingt5on college and looked in the microscope and saw a glowing nueron and thought it was weird.
4.The scientist are focused on the connecvtions

By: Devin Platts 1st

Devin Platts 1st — Mon, 10 May 2010 14:54:59 +0000

1. nerve cells can

By: Chase R. Massey 5th Period

Chase R. Massey 5th Period — Mon, 03 May 2010 12:41:14 +0000

1) Cells are unreadable.
2) The neurons by themselves are unreliable.
3) 1 centimeter has 20,000 neurons
4) A clock is one centimeter of the brain.
5) The cells can keep track of time.

By: Max Stephenson 2nd

Max Stephenson 2nd — Fri, 16 Apr 2010 16:16:48 +0000

The SCN lots of neurons that make neurochemicals and connections within the SCN and to other parts of the brain.The biologly clock, a one sqaure millimeter area of the brain called the suprachiasmic nucleus, has about 20,000 neurons.,he was a graduate in the neuroscience program.Individual cells isolated from the biological clock can keep daily time all by themselves.

By: brett stoddard 5th period

brett stoddard 5th period — Tue, 30 Mar 2010 00:39:08 +0000

!).Alexis Webb is a girl
2).Glow tells her that the nerve cell is busy keeping time.
3).Alex Webb is a graduate student in the neuroscience program.
4). The suprachiasmic nucleus contains about 20,000 neurons.
5). The suprachiasmic nucleus is known as the SCN.

By: Pamela Hussey-6th Period

Pamela Hussey-6th Period — Wed, 10 Mar 2010 00:36:25 +0000

1. Alexis Webb studies nerve cells under a microscope at Washington University.
2. Isolated cells can keep time on their own when they glow.
3. Cells are unreadable.
4. The neurons by themselves, are unreliable.
5. Some scientists felt that all of the cells in the SCN would be intrinsically rhythmic.

By: Kelsey schronce 5th perod

Kelsey schronce 5th perod — Tue, 09 Mar 2010 16:49:38 +0000

~ Alexis Webb sees a glow when bending over a microscope in a black box draped with black cloth
~ The glows tells her the islolated nerve cell is bus keeping time
~ The biological clock just above the roof of the mouth and atop the crossing of the optic nerves, comprises about 20,000 neurons
~ These cells contain the machinery to generate daily or circadian rhythms in gene expression and electrical activity
~ But the individual cells are sloppy and must communicate with one another to establish a coherent 24-hour rhythm; these features make the SCN a flexible clock that can reset to stay in synch in an ever-changing environment
~ Webb exposed SCN to the drug TTX, a pufferfish toxin that shuts down cell-to-cell communication to show that different kinds of SCN neurons did not have rigidly defined roles

By: Elijah Hurskin 4th period 3/8/10 6:14 pm

Elijah Hurskin 4th period 3/8/10 6:14 pm — Tue, 09 Mar 2010 00:14:22 +0000

1)Alexis Webb a graduate student in the neuroscience program has demonstrated that individual cells isolated from the biological clock can keep daily time all by themselves.
2) She is not the only one to come up with this
3)The biological clock, a one-square millimeter area of the brain called the suprachiasmic nucleus, or SCN, just above the roof of the mouth and atop the crossing of the optic nerves, comprises about 20,000 neurons.
4)These cells, remarkably, contain the machinery to generate daily, or circadian, rhythms in gene expression and electrical activity.
5)But the individual cells are sloppy and must communicate with one another to establish a coherent 24-hour rhythm, says Herzog.

By: deondre surles 6th period

deondre surles 6th period — Mon, 08 Mar 2010 22:01:48 +0000

The woman can see a nerve cell growing.

The nerve cell is keeping time.

The neurons are unreliable.

They aren’t reliable when it comes to telling time.

By: Reagan Locke 4th

Reagan Locke 4th — Mon, 08 Feb 2010 03:23:17 +0000

The neurons gets out of sync and capriciously quit or start scillating again. Cells have magnificently endangered.The biological clock can stay in sync in an ever-changing environment.Webb digested slices of mouse SCN with enzymes to isolate individual neurons and then plated the cells sparsely on a dish. A person can see a single nerve cell through a microscope.