User148
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Hi,

How did you structure your essay? (e.g how many minutes would you spend planning, writing, per paragraph, how many paragraphs etc)

Would appreciate some help! (also, I would be thankful for some examples!)
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macpatgh-Sheldon
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Hi,

I have some actual essays done by my students that I have marked with detailed comments and suggestions to improve the score - if you would like copies, please PM me - I cannot upload them here due to student confidentiality.

Best wishes & be safe!
M (specialist biology tutor)
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macpatgh-Sheldon
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I went out of my way to send you essays as promised - you did not even have the courtesy to acknowledge receipt, let alone show any gratitude - is that why you use a generic username?
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User148
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(Original post by macpatgh-Sheldon)
I went out of my way to send you essays as promised - you did not even have the courtesy to acknowledge receipt, let alone show any gratitude - is that why you use a generic username?
Hi! Thank you for the essays. My email isn't connected to my device so I don't get notifs. When I logged in and saw your email, I replied (which was 3 days ago).

Thanks again!
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macpatgh-Sheldon
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Ok no probs sorry about tough-sounding post - all's well that ends well!

Thanks for the rep btw!
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SchoolcanSMA
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(Original post by macpatgh-Sheldon)
I went out of my way to send you essays as promised - you did not even have the courtesy to acknowledge receipt, let alone show any gratitude - is that why you use a generic username?
r/whoooshhhh
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RGreg0303
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(Original post by macpatgh-Sheldon)
Hi,

I have some actual essays done by my students that I have marked with detailed comments and suggestions to improve the score - if you would like copies, please PM me - I cannot upload them here due to student confidentiality.

Best wishes & be safe!
M (specialist biology tutor)
Have you got any essays on the Importance of Enzymes in living organisms? I’m really struggling with the title and an example would be helpful. No worries if not.
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macpatgh-Sheldon
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Sorry I don't - however, I shall try to provide some tips here early t-rrow!
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macpatgh-Sheldon
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RGreg0303

On 2nd thought, let me make you dream up some answers tonight - I will place some grapes in your brain, which hopefully will brew overnight to generate ideas!! [sorry! - sounds evil doesn't it? ]

Ok let us dive into the deep end:-

With a Q like this, which involves drawing from your knowledge in various parts of the syllabus, you need to use a logical and clever tactic of brainstorming to come up with relevant, high-scoring ideas, yeah?

One way is to think from head to toe, another one [perhaps better for this Q] is to consider the various body systems in turn i.e. cardiovascular, respiratory, gastrointestinal, neurological, musculoskeletal, endocrine, genito-urinary, excretory, still with me? [the point is that this will help you to recall/retrieve info that you know well, but which you cannot retrieve from your memory easily in the pressure of the exam, happy so far?]

OK now let us take each system:
[first, make a bold mission statement to outline [v briefly only cos it is not directly relevant to the Q] what enzymes are and how they work e.g. the hand-in-glove theory and specificity].

CVS: not much we can think of, is there BUT [for A* = outside syllabus] the enzyme Na+, K+ - ATPase [sodium potassium pump] is important for contraction of cardiac muscle [link it to musculoskeletal system] and google creatine kinase.

Gastro: BIG ONE: all digestive enzymes - importance: we need smaller molecules of food for absorption - give a couple of e.g.-s and their actions - to display your knowledge, give a "powerful" e.g. [e.g. that pepsin breaks peptide bonds next to aromatic amino acids like phenylalanine], etc. Also the majority of biochemical reactions occur in the liver - e.g. detoxification reactions need enzymes like hydroxylases - important in preventing poisoning/toxicity. Also liver generates most heat in the body at rest - distributed by the blood [muscles during activity]. Important to main temp [in homoiothermic animals]
Urea cycle [in liver] needs enzymes for excreting nitrogen waste [important for excretion [one feature of living organisms]
Neurological: talk about synthesis of neurotransmitters e.g. acetylcholine [ACh] from acetyl coenzyme A and choline. After crossing synapse and acting on receptors, this ACh [e.g.] needs to be destroyed so cholinesterase, yeah? Importance of NOT continuing neurotransmission indefinitely OR MAO [monoamine oxidase] for noradrenaline

Musculoskeletal: ATP is important for muscle contraction as it drives the movement of actin filaments relative to myosin ones by twisting of cross-bridges [this can lead you to talk about other importance of ATP e.g. for growth and reproduction [see below]

Etc etc etc [don't forget plants e.g. enzymes in photosynthesis important for nutrition + respiration [incl Kreb's cycle] in both plants and animals.

ATP production [using ATP synthase on mitochondrial cristae [as stalked particles]] important for locomotion of some protozoa using flagellum [9 + 2 fibril structure]; important for spermatozoa to reach ovum via cervix by beating of its tail [like a cilium] = importance in perpetuation of species through reproduction.

THINK VERY LARGE AND VERY TINY [another tactic]; microscopic -----> enzymes in lysosomes break down ingested material e.g. bacterial DNA broken down by nucleases - important for defence against infection.

AND SO ON!

Always blatantly repeat words used in the Q [there is a reason to make "important" bold, yeah?

Happier now? Easy peasy lemon squeezy, wasn't it?

Be safe!
M.
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