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Fiona Russell

Science & Maths tutor; Pharmacology PhD; Oxford graduate

401Students helped
4Questions answered
£40Per hour
Science

Asked by Ned · 4 years ago

What is the function of chlorophyll?

Chlorophylls are a group of green pigments found in plants (and other photosynthetic organisms) that absorb energy from sun light. This light energy is vital for the process of photosynthesis, which uses it to convert carbon dioxide and water into glucose and oxygen.

Maths

Asked by Olivia · 4 years ago

How do you divide fractions?

You can use the KFC method to remember how to divide fractions. For example 1/4 divide by 2/3. K is for keep, so you keep the 1st fraction the same. So 1/4 stays 1/4. F is for Flip - you flip the 2nd fraction upside down. So 2/3 becomes 3/2. C is for Change - you change the divide sign to a multiply sign so now the sum becomes: 1/4 x 3/2 Then you multiply the fractions as normal (multiply the 2 n... more

Biology

Asked by Audrey · 2 years ago

DNA is made up of phosphate groups, nitrogen bases, and what?

DNA is the molecule that holds the instructions for growth and development in every living thing. Its structure is described as a double-stranded helix held together by complementary base pairs. The basic units of DNA are nucleotides. These nucleotides consist of a deoxyribose sugar, phosphate group and a nitrogenous base.

Maths

Asked by Lauren · 4 years ago

The price of Kate’s monthly mortgage payments increased by 4%. Her payments are increased by £12.75. Work out Kate’s monthly mortagage payments before the increase?

£12.75 is 4% So 1% would be 12.75/4 = 3.1875 Then 100% (which would be the original monthly mortgage payment) would be 3.1875 * 100 = £318.75

Fiona's profile picture

Fiona Russell

Science & Maths tutor; Pharmacology PhD; Oxford graduate

401Students helped
4Questions answered
£40Per hour