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Annotate the following passage from C.S. Lewis' work, Perelandra.

At last I came to the cross-roads by the little Wesleyan chapel where I had to turn to the left under the beech trees. I ought to be seeing the lights from Ransom's windows by now--or was it past b...

LH
6684 Views

Outline the difference between Inner and Outer Party members in George Orwell's work, 1984.

An Inner Party member has, above all things, the ability to turn off the telescreen at will, if only for short periods of time. For an Outer Party member, the constant babble of the telescreen is somet...

LH
28405 Views

State the source, substrate, products and optimum pH of one amylase, one protease, and one lipase

Amylase (Salivary amylase)
Source: salivary glands in the mouth
Substrate: starch
Products: maltose
Optimum pH: 4.6-5.2

Protease (pepsin)<...

LH
Answered by Louise H. Biology tutor
13868 Views

Explain the need for enzymes in digestion

Mechanical digestion breaks down large food particles into smaller ones, increasing the surface are to volume ratio. However, polymers present in food particles require a very long time to break down a...

LH
Answered by Louise H. Biology tutor
3073 Views

(a) State four functions of proteins, giving a named example of each.

Proteins can function as 

1. Biological Catalysts: enzymes that decrease the activation energy of a reaction and facilitate the progression of chemical reactions

2. Hormones...

TS
Answered by Tatiana S. Biology tutor
17228 Views

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