Year 11 Biology

Topic 1 – Co-ordination and response

Name: _______________________________

Tutor: _______________________________

House: ______________________________

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This year we are going to try turning learning on its head. You will use your homework time to watch videos with explanations of the key concepts and in class we will then use that information to carry out tasks to help you to learn and understand.

The advantage to this is that you will be able to watch the videos several times, and you will also be able to post questions in various places if you need some help as you are watching them.

The majority of the work will be accessed from the internet and by using this booklet, coupled to your text book.

Some things you need to do…

1) Search for, and then ‘like’ ‘Miss Woody Flipped’ on Facebook. The URL is www.facebook.com/MissWoodyFlippedThe purpose of the Facebook page is to provide you with the links and also to give you the chance to post questions.

2) Find the ‘MissWoodyFlipped’ channel on YouTube.You can post questions in the comments box under the videos, or you can post questions to the Facebook page.

3) Send an email from the email account that you regularly use and check to misswoodyflipped@gmail.com so that I can email you your homework too.

4) Sometimes in class, or for homework, I will be using a web-based quiz software. You can access this on laptops or on smartphones. The URL is:

www.socrative.com

You then go to ‘Student Log in’ where you will be asked to input the teacher room number. Mine is 977369.

When you log in you will be asked to give your name (please give the correct one!) and then you will be shown whichever activity it is that I want you to do.

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We completed this section at the end of Year 10.

You may want to spend a little bit of time going back over it though…

An Exceedingly Important Definition

(that is code for: I must learn this word for word)

Homeostasis: the maintenance of a constant internal environment

What factors will the human body need to control and why?

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Negative Feedback

An air-con system works by having a thermostat that detects the temperature of the room. If the temperature is higher than the temperature set by the thermostat then the air-con is turned on and cold air is pumped into the room. If the temperature is lower than the temperature set by the thermostat then the air-con is turned off and the room warms up.

In this way, the air-con system is operating as a negative feedback system. This means that the response causes the opposite effect.

In a negative feedback system:

If something is hot, it will get cold. If something is high, it will get lowered. If something is cold, it will get hot. If something is low, it will be raised.

We have negative feedback systems throughout our bodies. They are very useful in controlling temperature, water levels in the blood, sugar levels in the blood and many other things. They are very sensitive and they can respond to our needs.

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If the temperature is low the unit responds by turning off and letting the room warm up.

If the temperature is high the unit responds by turning on and cooling down the room.

The thermostat detects the temperature of the room and sends a message to the air-con unit.

Skin

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What the syllabus says you need to know about skin…

Keeping CoolUse the information that you have deduced from the activity cards to complete this flow chart.

Key WordsWe have encountered a number of key words so far. Find and write definitions in the table. There are spaces for you to add extra words if you can think of more.

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Normal body temperature

Rising body temperature

Normal body temperature

Falling body temperature

Homeostasis

Negative Feedback

Thermoregulation

Receptor

Vasoconstriction

Vasodilation

Homework 1:

1) Do all the various ICT things – like the FB page, send me an email, log onto Socrative.2) Complete the Socrative quiz that you will find in room977369

Hormones

What is a hormone?

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What is adrenaline?

In the space below, make a table comparing the hormonal and nervous systems:

Hormonal Nervous

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Homework 2: go to the ‘MissWoodyFlipped’ YouTube channel and watch the ‘Glucose Regulation’ video. Then complete the page below:

Summarise the key points made in the video (you could use words or diagrams or a combination of the two!)

What are the key words and phrases that you think are important in this video? Include definitions.

What are the names of the HORMONES involved in glucose regulation and what do they do?

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Glucose Regulation

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Glucose Concentration NORMAL

Glucose Concentration too HIGH

Glucose Concentration too LOW

Homework 3: go to the ‘MissWoodyFlipped’ YouTube channel and watch the ‘Tropic Responses’ video. Then complete the page below and log into Socrative (room 977369) and complete the task there.

Summarise the key points from the video:

What are the key words in the video and what do they mean?

How could you design an experiment to investigate PHOTOTROPISM?

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Phototropism Experiment

What have you set up? Draw diagrams to help you.

For each of your experiments what do you think the results will be and why?

The results showed that…

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To help you to revise nerves…

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