ASSIGNMENT
5.
A student investigated the effect of light intensity on the rate of photosynthe...
Biology, 03.05.2021 18:00 escuderojohny
ASSIGNMENT
5.
A student investigated the effect of light intensity on the rate of photosynthesis of algae
Fig. 5.1 shows the apparatus set up for the investigation
glass tank with water
осоор
bottle containing algae
suspension and hydrogencarbonate
indicator solution
mp
stop-clock
11
ruler
0
20
40
60
80
100
120
Fig. 5.1
(a) Suggest why a glass tank with water was placed between the lamp and the bottle in
the investigation.
Answers: 1
Biology, 21.06.2019 20:00
With the description of the different cell walls, membranes, and associated proteins set in the students' minds, you now need to introduce them to the idea that the cell wall can also act as a foundation to build things upon. bacterial appendages require a strong foundation that will offer the support needed to move and function in a dynamic world. for example, flagella are long, whiplike protein structures that are used by many gram-positive and gram-negative bacteria for locomotion. in order to function effectively, a flagellum must be firmly anchored to the cell wall. how will you be able to get across the idea that the peptidoglycan cell wall is strong enough to support such a mechanism? with a protein rod that passes through the cell wall and protein rings used to anchor it in the membranes, these basal bodies are the rudimentary biological motors that use atp power to spin the hook and the flagella attached to it. bacterial flagella have a biological motor that spins within the cell wall and is powered by atp. this allows the flagella to spin in a whiplike motion to propel the bacterium.
Answers: 3
Biology, 22.06.2019 02:00
Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?
Answers: 3
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