FierceFirefly

On 7/14/2023 at 12:19 PM, studiot said:

OK so we are going to work from general experience

What holds up bouncy castles, lilos, air beds, bicycle tyres and the like ?

 

I am going to answer this in a spoiler considering the circumstances and it is general science you will need

to know something about.

 

  Reveal hidden contents

Pressure.

The air inside the 'balloons' is at greater slightly greater pressure than the air outside. You do not need a great amount.

So the balloon fabrics resist deformation and the balloon becomes stiffer.

 

Now associated with the process we call osmosis, there is an increase in pressure of a fluid, which is not air.

What do you think this fluid is ?

 

You have obviously found your way round this site very well.

Did you read any of the rules ?

Two things.

Firstly new members are allowed 5 posts in their first 24 hours. This is an effective impediment to the bad guys.
Since you have one left, think very carefully before you reply.
After one day you can have as many posts as you like and conversation can continue normally.

Secondly, the homework section has some special rules.
We are not allowed to just tell you the answer, as we could in the biology section.
So is this actual homework or just part of your catching up.
There are good folks here who would encourage that.

Hi sorry took some time to find this comment... It is part of my catch up work but thought that as it is questions it would be best to ask in the Homework Help section.

On 7/14/2023 at 12:45 PM, studiot said:

Are these the actual words of the question or your reading of something?

I ask because they are not strictly accurate.

Yes you may 'get a temperature' from a disease but it does not have to be an infectious one. Arthritis would be a common example.

Of course you always 'have a temperature' which may be raised or lowered from normal for many reasons.

So strictly, scientifically speaking you should refer to raised, lowered or normal.

You can also get a raised temperature from physical exertion.

 

All these mechanisms of temperate increase have something in common.

Simply, but scientifically they are due to an increase in metabolic rate, but for different reasons.

Most biochemical processes generate or release energy as heat.

So the faster the process is going the more heat is released.

The body also has mechanisms for temperature regulation (sweating) , so some form of balance is struck.

 

Biochemical processes also have an 'optimum' temperature and both the body's own processes and that of many infectious agents have similar optima.

So as the body metabolism works harder in fighting the infection, the body temperterature begins to rise.

Sometimes sweating is enough to control this sometimes it is a more runaway action we call a fever, depending upon whether the infection or the body is winning.

Helping the body cool artificially increases its chances of success over that of the infectio.
Additionally other body processes can also proceed more normally as they are also adversely affected by raised temperatures.

 

 

 

 

 

Hi yes this is the exact wording of the question.

39 minutes ago, exchemist said:

Here's a clue: what happens when a plant wilts, due to lack of water?

The water chains in the xylem become thinner and thinner... The plant is loosing water faster than it can replenish it.

I believe this is correct to your clue. And thank you.

51 minutes ago, studiot said:

This is not a personal criticism, but can you give us some context to the biology questions ?

I ask this because, from your comments around both your biology questions,  you do not seem to have the General Science knowledge to be able to attempt them.

I'm sorry I'm not really sure all I know is that it is GCSE level biology- year 10 if that helps. I have missed around 6-8 months of school. This isn't very helpful I know. I'm sorry.

54 minutes ago, studiot said:

This is not a personal criticism, but can you give us some context to the biology questions ?

I ask this because, from your comments around both your biology questions,  you do not seem to have the General Science knowledge to be able to attempt them.

All I know for this is that it is to do with enzymes and the pH of enzymes. I am not sure what else I can say to help on this. I'm sorry 

Just wondering if anyone is able to help me with this biology question.

When you get an infectious disease you may get a temperature. This is a way your body defends you as many microorganisms cannot reproduce at high temperatures. However, people always try to bring the temperature of an ill person down. Explain why this may be the case. (4marks)
 

I have absolutely no idea where to start here..

Just wondering if anyone is able to help me with this biology question.

Suggest and explain why osmosis is so important in the structural support systems of plants. (6marks)

I have an idea that it's to do with the fact that depending on the state- whether it's hyptonic environment, hypersonic environment or isotonic state. Other than that I have absolutely no idea. Any suggestions would be greatly received.