Download No - Deans Community High School

No. 1 - The Processes of Life
You have learned about the seven life processes MRS GREN.
You will have to produce a short piece of work that presents information
about them in more detail to the rest of the class. The information can
be in any of these forms:
 Picture (with some labels)
 Cartoon Strip
 Fictional story
 Newspaper Report
 Song/Dance/Poem
It will be judged according to:
 how much effort you put into its presentation
 how much effort you put into researching it
 how accurate and reliable your information is
 how interesting it is
No. 2 – Cells
1. Construct a table to show the differences between red blood cells and
white blood cells. You table must include at least three differences
2. Animal cells and plant cells have certain structures in common. Plants
contain other features that animal cells do not.
Copy and complete the table by adding a tick to show which structures
are usually found in each type of cell.
Structure
Nucleus
Cytoplasm
Cell Membrane
Chloroplast
Vacuole
Cell Wall
Animal Cell
Plant Cell
3. This is a picture of a single celled organism called Euglena. It lives in
water. It has a simple kind of eye, a tail called a flagellum, and
chloroplasts.
a. Name one structure found in Euglena that is normally only found in
plant cells.
b. Name one structure normally found in plant cells that Euglena
lacks.
c. How do you think Euglena obtains its food?
d. What does Euglena’s tail help it to do?
e. How do you think Euglena knows where to find light?
f. Is Euglena is a plant cell or an animal cell? Give reasons for your
answer.
N0. 3 – Microscopes
1. Why are microscopes used to look at cells?
2. Louise and Dawn made a microscope slide of an onion cell. They cut
a piece of onion, laid it on a microscope slide and put a cover slip
over it. When they tried to focus the microscope they couldn’t see
anything! What could Louise and Dawn add to the slide that would
help them see the cells more easily?
3. Eventually Louise and Dawn did see the onion cells. They saw a
nucleus, a cytoplasm and a cell wall but couldn’t see any
chloroplasts. Dawn said this must mean that onion cells are not
plant cells. Louise said she was sure that onions are plants but
couldn’t understand why there were no chloroplasts.
a. Why don’t onion cells contain chloroplasts?
b. Which structure could they see that shows onion cells must be
plant cells?
4. Copy and complete the table below.
diameter of cell under
microscope (mm)
5
1
0.5
0.4
magnification of
microscope
X50
x40
X200
actual diameter of
cell (mm)
0.01
0.05
0.001
No. 4 - Building an organism
1. Oh no! Stephen has done his homework all wrong! Can you help him to
fix it?
a. Rewrite the table and insert the correct organs to match the job
descriptions.
Job Description
Pumps blood
Detects light
Breaks down food
Controls the rest of body
Absorbs digested food into body
Organ
Lung
Ear
Large intestine
Kidney
Skin
c. Using the 5 organs already named above, construct another table
to show the real jobs that those organs do.
d. Starting with the mouth and ending at the anus, describe the
process of digestion.
NO. 5 - Measuring Health (heart and lungs)
1. Ed and Graeme wanted to find out who was fitter. They both had
exactly the same resting pulse rate so they decided to compare their
recovery times. Describe an experiment that would allow them to do this.
2. The table below shows the results of Ed and Graeme’s experiment.
a. On one piece of graph paper plot a line graph (like the one below) of
these results. (You need to draw one line to show Ed’s pulse rate and then
draw another line on the same graph to show Graeme’s pulse rate so use
different colours for each person)
student
Ed’s pulse
rate
Graeme’s
pulse rate
Resting
Pulse Rate
(beats per
minute)
Time after exercise (seconds)
0
30
60
90
120
150
180
65
180
150
120
100
80
65
65
65
170
150
130
105
90
75
65
b. Who is fitter? Explain your answer.
c. Explain why heart rate and breathing rate increases during exercise.
No. 6 - DNA
1. What part of cell contains DNA?
2. What are the structures called that DNA is found on?
3. Explain what DNA is.
4. What is a gene?
5. This is a picture of human chromosomes - Is this person male or
female? Explain your answer.
6. My mum always says, “You’re exactly like your father!” Explain why,
genetically, a statement like this cannot be completely true.