#biology1
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You are older than you think
The life within in you goes back in an unending stream to the first life on Earth, billions of years ago
It is a common tenet of evolutionary biology1 that all life on Earth (plants, animals, bacteria and in fact, all living things) evolved from a single-celled organism that lived several billion years ago.2 This doesn’t mean from a type of organism (prokaryotic3 ), but rather from one single individual cell.
The image here is of a tardigrade, an ancient tiny primitive animal that still lives…
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okay but can we talk about that fucking darwin question because I honest to god didn't come here prepared for questions about the menstrual cycle just to be given History's Finest Roasts™
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StoryAlity #175 - Ev Cult in a nutshell (7 articles)
StoryAlity #175 – Ev Cult in a nutshell (7 articles)
Reposting this here, from the Ev Cult weblog:
Evolutionary Culturology in a Nutshell: A series of seven statements
0. Introduction: The universal structure of the unit, in both Culture and Biology1. Solving Consilience: The Short Story2. Pick a Domain, any Domain in culture!3. In Search of… The Unity of all Knowledge (or: Ev Cult = consilience)4. In Search of… Worldviews, and Scientific…
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XVIII/biology1
The irony of studying biology.
It gives perspective on the sound and feeling of nerves etc. I can here them zipping and popping inside me.
This fluid sliding down my spine up and down to the monotonous drone of my professors voice
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Learn about why it’s harder to clean grease off of plastic than glass; how zoos use their own version of dating apps for breeding programs; and why science says you don’t have to be married to be happy.
Why is it harder to clean grease off of plastic than glass? by Ashley Hamer (Listener question from Lili)
Saig, A. (2012, May 17). Why does soap easily remove fats from metalware and glassware but not from plastic? Davidson Institute of Science Education; Weizmann Institute of Science. https://davidson.weizmann.ac.il/en/online/askexpert/chemistry/why-does-soap-easily-remove-fats-metalware-and-glassware-not-plastic-tom
Lipids. (2020). Dcccd.edu. https://dlc.dcccd.edu/biology1-3/lipids
Clean My Space. (2013). Cleaning Plastic Containers: How to Clean Plastic Food Storage Items Fast & Easy (Clean My Space) [YouTube Video]. In YouTube. https://www.youtube.com/watch?v=RQKei50JCNQ
Zoos Use Their Own Versions of Dating Apps for Breeding Programs by Reuben Westmaas
Wright, R. (2018, February 12). There’s a Matchmaking Site for Gorillas, Too. The New Yorker; The New Yorker. https://www.newyorker.com/news/news-desk/theres-a-dating-site-for-gorillas-too
Stahl, L. (2018, May 13). Matchmaking for zoo animals. Cbsnews.com. https://www.cbsnews.com/news/matchmaking-for-zoo-animals/
You don't have to be married to be happy by Kelsey Donk
When it comes to happiness, what’s love got to do with it? (2020). EurekAlert! https://www.eurekalert.org/pub_releases/2020-07/msu-wic072320.php
Loved and lost or never loved at all? Lifelong marital histories and their links with subjective well-being. (2020). The Journal of Positive Psychology. https://www.tandfonline.com/doi/full/10.1080/17439760.2020.1791946?journalCode=rpos20
Subscribe to Curiosity Daily to learn something new every day with Cody Gough and Ashley Hamer. You can also listen to our podcast as part of your Alexa Flash Briefing; Amazon smart speakers users, click/tap “enable” here: https://www.amazon.com/Curiosity-com-Curiosity-Daily-from/dp/B07CP17DJY
#Curiosity Daily Episodes#food#space#science podcast#educational podcast#podcasts#best podcasts#science#psychology#learning#interesting#fun facts#educational podcasts#science podcasts#Discovery#curosity#daily podcasts
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IN SUMMARY: FUNCTIONAL GROUPS
“The unique properties of carbon make it a central part of biological molecules. Carbon binds to oxygen, hydrogen, and nitrogen covalently to form the many molecules important for cellular function. Carbon has four electrons in its outermost shell and can form four bonds. Carbon and hydrogen can form hydrocarbon chains or rings. Functional groups are groups of atoms that confer specific properties to hydrocarbon (or substituted hydrocarbon) chains or rings that define their overall chemical characteristics and function.”
Q: "What are the 7 functional groups?"A: "Some of the important functional groups in biological molecules include: hydroxyl, methyl, carbonyl, carboxyl, amino, phosphate, and sulfhydryl groups. These groups play an important role in the formation of molecules like DNA, proteins, carbohydrates, and lipids." Read more here:
#Functional Groups#Biology#Carbon#Oxygen#Hydrogen#Nitrogen#Covalent#Cellular Functon#Chains#Rings#Substitution#HYDROXYL#METHYL#CARBONYL#CARBOXYL#PHOSPHATE#SULFHYDRYL#FORMATION OF DNA#PROTEINS AND CARBOHYDRATES#LIPIDS#DNA
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What is the dependent and independent variables in your experiment?
What is the dependent and independent variables in your experiment?
Laboratory in Biology1 Describe an example of how you use the scientific method in your daily life. Which observation(s) lead you to use the scientific method? State a good hypothesis, how you are testing the hypothesis (the experiment), results and conclusion. What are the control and treatment groups in your experiment? What is the dependent and independent variables in your experiment? Name…
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Exocytosis
Related Posts
Source: https://courses.lumenlearning.com/suny-wmopen-biology1/chapter/endocytosis-and-exocytosis/
Campbell Biology
The cell secretes certain molecules by the fusion of vesicles with the plasma membrane; this process is called exocytosis. A transport vesicle that has budded from the Golgi apparatus moves along microtubules of the cytoskeleton to the plasma…
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في إثبات جديد لنظرية التطور: دراسة وراثية ضخمة توضح كيفية تطور حياة الإنسان
في إثبات جديد لنظرية التطور: دراسة وراثية ضخمة توضح كيفية تطور حياة الإنسان
في دراسة جينية ضخمة، سعت إلى تسليط الضوء على كيفيّة تطوّر الجينوم للكائن البشري، تم التوصل في نهايتها إلى نتائج تقترح سيادة آلية الانتقاء الطبيعي القائم على استبعاد الطفرات والصفات الوراثية غير المرغوبة، والتي تقوم بإضعاف حياة الكائن البشري وتقصيرها.
البحث تم نشره على Plos Biology1 بعد أن تم تحليل الحمض النووي لحوالي 215 ألف شخص، وتم تناوله في مجلة Nature. إذ يعتبر أول بحث من نوعه يقوم بدراسة…
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BIOLOGIA
file:///J:/BIOLOGIA/bioinformatics_trends_and_methodologies.pdf
file:///J:/BIOLOGIA/Biology-teacher-edition.pdf
file:///J:/BIOLOGIA/CK-12-Biology.pdf
file:///J:/BIOLOGIA/CK-12-Biology1.pdf
file:///J:/BIOLOGIA/Introduction-to-Human-Osteology.pdf
file:///J:/BIOLOGIA/manual-microbiologia-general.pdf
file:///J:/BIOLOGIA/origen-de-las-especies.pdf
file:///J:/BIOLOGIA/systems_and_computational_biology_molecular_and_cellular_experimental_systems.pdf
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AQA BIOLOGY UNIT 1- TOPIC 1: The Nervous System
What is the nervous system?
The nervous system enables humans to react to their surroundings and coordinate their behaviour.
The nervous system consists of the brain and the spinal cord (Central Nervous System) together with the nerves.
These nerves are made up of groups of nerve cells called neurons, like a bundle of wires in a cable.
Information passes around the body in cells called neurones. Bundles of neurones form a nerve.
What is a stimulus and how do we detect them?
A stimulus is a change in the surroundings. (When there is more than one stimulus, we call them stimuli)
We detect stimuli using receptor cells.
These are usually found in groups known as sense organs.
Our eyes, ears, nose, tongue and skin are all sense organs.
What are these receptors sensitive to?
Receptors in the skin are sensitive to touch, pressure, pain and temperature changes.
Receptors in the eyes are sensitive to light.
Receptors in the ears are sensitive to sound and changes in position to help us keep our balance.
Receptors in the tongue and nose are sensitive to chemicals which enable us to taste and smell.
Apparently you need to know the basic structure of a light receptor cell so here's an MS Paint drawing .
How does the nervous system work?
Nerves carry information in the form of electrical signals.
These are called electrical impulses/ nerve impulses from receptors in the brain or spinal cord.
The brain and spinal cord make sense of the information and any response needed. Like if you were touching something hot, the receptors would tell your brain to STOP TOUCHING THE HOT THING and your brain would send an impulse back saying OH YEAH THATS A GOOD IDEA and you would stop touching the hot thing.
So yeah, the spinal cord carries information via electrical impulses to and from the brain.
Neurones need to be super duper long because they carry the impulses to and from your brain.
Sensory neurones carry impulses from your receptors to your central nervous system (your brain or spinal cord).
Motor neurones carry impulses from your central nervous system to the effectors (muscles and/or glands).
Muscles respond by contraction and glands respond by releasing chemicals.
IN SUMMARY:
RECEPTOR> SENSORY NEURONE> COORDINATOR> MOTOR NEURONE> EFFECTOR
YOU TOUCH THE HOT THING>YOUR SKIN SENDS AN IMPULSE TO YOUR SPINE VIA SENSORY NEURONES> BRAIN GOES OW STOP> SENDS SIGNAL TO HAND VIA MOTOR NEURONE> YOUR HAND MUSCLES CONTRACT AND YOU STOP TOUCHING THE HOT THING LIKE THE MINDLESS SLAVE YOU ARE.
What is the flow chart difference between a voluntary action (like seeing cake) and an involuntary action (like touching the hot thing)?
Your eye responds to light and sees cake> you send an impulse via sensory neurone to your brain because you want the cake> your brain agees, it wants cake too> your cake loving brain sends an impulse via your motor neurone> your arm and hand muscles get the message and you eat the cake.
This is voluntary.
You see my evil mind control rant about touching hot things in the last question. Yeah? That's involuntary. Why? Because you can't control the actions. It's called a reflex action. It's a lot faster than reaching for a cake... unfortunately. Reflex actions are important because they protect us. We don't have to think about them which is good.
What Is A Synapse?
A synapse is a junction between neurones. Because neurones aren't directly joined up to each other.
The electrical impulses travelling along your neurones have to cross these synapses.
They cannot leap the gap.
That means the nerve impulse reaches the end of one neurone and stops.
A chemical is released from the neurone and diffuses across the gap to the other side of the synapse.
It then starts an impulse in the next neurone.
I'm pretty sure I've got that all covered. I think.
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What is the dependent and independent variables in your experiment?
What is the dependent and independent variables in your experiment?
Laboratory in Biology1 Describe an example of how you use the scientific method in your daily life. Which observation(s) lead you to use the scientific method? State a good hypothesis, how you are testing the hypothesis (the experiment), results and conclusion. What are the control and treatment groups in your experiment? What is the dependent and independent variables in your experiment? Name…
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