Quiz

BuzzFeed Staff, UK 

BuzzFeed

If A-level science existed and involved answering just 12 multiple-choice questions.

Could You Pass A-Level Science?

DNA helicase splits the two strands by breaking hydrogen bonds, then DNA polymerase goes along the strand making complimentary base pairs.

This diagram shows DNA replication. What is the name of the labelled enzyme?

The five [stages](http://www.uic.edu/classes/bios/bios100/lecturesf04am/lect16.htm) of the cell cycle are interphase, prophase, metaphase, anaphase, telophase.

These photos show different stages of the cell cycle. Which is the correct order?

It's a chloroplast, responsible for photosynthesis.

This is a plant cell. What is the name of the organelle labelled "W"?

It's the nucleus, where the cell's genetic information is held.

What is the name of the organelle labelled "Z"?

Atomic radius is a measure of the distance from the nucleus of an atom to the boundary of its electron cloud. Atomic radius increases as you go down the periodic table, adding electron shells to atoms, but decreases as you go across the periodic table and nuclear charge increase, pulling electrons in closer to the nucleus. Na (sodium) atoms have the largest atomic radius in the third row of the periodic table.

Which atom has the largest atomic radius?

How many electrons can an S orbital hold?

The other description refers to stereoisomers.

What does the term "structural isomers" mean?

Ethanal, also known as acetaldehyde, is an aldehyde – and aldehydes react with Tollens' reagent to make silver.

Which of these statements is true about ethanal?

You wouldn't see an interference pattern in Young's double slit experiment if electrons didn't behave like waves.

What phenomenon can be used to demonstrate the wave properties of electrons?

Gravitational potential is always negative, and at the Earth's surface is -63 MJ kg-1.

Which of the following sentences about gravitational potential is true?

Cepheid variables and Type 1A supernova are standard candles.

In astronomy, what is a standard candle?

X-rays show more detail than ultrasound scans.

Which of the following is NOT a reason to use ultrasound rather than X-rays when scanning an unborn foetus?

It's pretty impressive that you did so badly on a multiple-choice test. Well done.

You failed!

Not great – maybe you were unlucky with the questions?

You got a D!

If actual A-levels were multiple choice, you'd definitely pass.

You got a C!

You got a B!

You passed with flying colours – well done.

You got an A!

<p>Questions adapted from <a href="http://www.aqa.org.uk/exams-administration/exams-guidance/find-past-papers-and-mark-schemes" target="_blank">Biology, Chemistry and Physics AQA past papers</a> and A-Level <a href="http://www.s-cool.co.uk/a-level/chemistry/atomic-structure/revise-it/the-structure-of-the-atom" target="_blank">revision guides</a>.</p>

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Could You Pass A-Level Science?

This is a chloroplast. What is the name of the part labelled A?

Could You Pass A-Level Science?

This is a chloroplast. What is the name of the part labelled A?

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