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Rushden Community
College
Year 11 Science
B2b Unit of Work Test


This assessment is designed to test your ability to:

Recall facts and formulae (remember what you have learned),
Apply knowledge (use your knowledge to answer questions in a
way you have not done before),
Answer questions scientifically,


For all…

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(a) Which of the organs on the diagram:
(i) produces sweat ......................................
(ii) produces urea .........................................
(iii) produces urine .......................................
(iv) stores urine? ...........................................
(4 marks)
(b) Explain why we should drink more water on a hot day than on a cold day.
..........................................................................................................................................
..........................................................................................................................................
.. (2 marks)













Question 2…

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(a) Use words from the box to name parts A, B and C.






A..............................................................
B .............................................................
C .............................................................
(3 marks)

(b) The sperm is a male gamete. It swims towards the female gamete.
Write down two ways in which the structure of the sperm helps it to swim.
1........................................................................................................................................
.............................................................................................................…

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The table shows the compounds and ions dissolved in a student's urine

Compound or ion Percentage of total
Urea 60
Negative ions 25
Positive ions 10
Other nitrogencontaining 5
substances

(a) Complete the pie chart for the compounds and ions dissolved in urine.

One section has been done for you.…

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Question 4

This graph shows the changes in blood glucose concentration in a healthy person over a
12hour period.




























a) What was the difference between the minimum and maximum glucose concentration over
the 12hour period? (1 mark)

b) For how long was the blood glucose concentration at or above 80mg…

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Question 5

The diagram shows some stages in sexual reproduction in humans.





(a) The box for the woman shows her chromosomes.

On the diagram write the sex chromosomes which should be in the empty boxes
(3 marks)

(b) The child has inherited cystic fibrosis from its parents

Neither parent has…

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......................................................................................................
............................................................... (3 marks)


Question 6

The diagram shows one of the experiments performed by a scientist called Mendel in the
1850s. He bred pea plants which had different coloured pea seeds.







(a) Use words from the box to help you to explain the results of this experiment.



..........................................................................................................................................
.............…

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(ii) Where, in a cell, are these inherited factors found?
..........................................................................................................................................
...
(1 mark)









Question 7

(a) What is an enzyme?
......................................................................................................
......................................................................................................
......................................................................................................
............................................................................................(2 marks)

(b) Sketch a graph show how temperature affects enzyme action. Label the axis, and add
labels to explain the shape of the graph.













(5…

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