Transcript B4 Broadsheetx

In a field measuring 30m x 40m Josie throws a
quadrat 5 times and counts 12,4,15,19,22
dandelions. Estimate the number of dandelions in
the field.
Give 4 differences in a forestry plantation
compared to natural woodland
Word equation for photosynthesis?
Draw the vascular bundles found in leaves:
Why do plants store glucose as starch?
What 4 factors could affect a population between
different sampling times?
List 5 things glucose is used for in plants
Paul catches 28 mice on day 1 then 42 on day 2.
13 were previously marked. Estimate the
population
What is zonation?
What are the 2 steps of photosynthesis?
Sketch the main cell layers found in a leaf
In stems
What is the balanced symbol equation for
photosynthesis?
In roots
Unit B4 revision
(Plants)
What is transpiration?
What is diffusion?
What is the difference between xylem and phloem?
Describe the path of water into a plant and out
through its leaves
What factors can limit photosynthesis?
List some organic farming
techniques
What do stomata do and how do they work?
How did Priestly prove that oxygen is made by
plants?
When do plants do photosynthesis and
respiration? Why?
What is osmosis and why is it important?
Draw a flaccid plant cell, a plasmolysed plant cell and a turgid plant cell
Why does the number and type of seaweed
change as you move from the low tide line to the
high tide line?
What are the 4 main nutrients a plant needs AND
why are they important?
What factors can speed up transpiration?
Draw a graph showing rate of photosynthesis
against increasing light concentration. Mark on
the graph exactly where another limiting factor
comes into effect
How does a saprophyte feed?
Compare a decomposer and a
detritivore
There are 3 factors that effect the rate of decay.
What are they and why does each?
What is hydroponics?
What are insecticides, fungicides, herbicides
used for?
Describe the process of bioaccumulation
Why is transpiration important to a plant?
How can a plant be adapted to reduce excessive
water loss?
What are the ethical concerns of intensive farming?
What is biological control and why is it
controversial?