What provides evidence that all life on Earth iovvh 9:4-uv d20rult evolved from the same population of cellsv iu4tdo2 :h-ur9v0vl?

  Identify the correct row in the table rk*qvqy5u5 */ n8gafteegarding the formation of vesicles.

  Whose experiments disproved spontaw85x(hd 8ezefdv4kn t;(w)gj pu hhma*p6: -vneous generation?

  Which type of isotopes are commonly used itw:5kqes lm26df+nij (,s3q t n absolute dating of fossils?

  Which of the following statements are reasons that RNA i5mm2k )wnic7cj: 4 hpis believed to be the firsinmkw 2h45icm7):cpj t genetic material?
I. RNA can form spontaneously when nucleotides are present
II. RNA contains ribose as its sugar
III. Miller demonstrated that organic molecules could be produced from a mixture of gases under conditions that simulated early Earth

The diagram below shows the apparatusa z31b j cl5dv)8:owikt-at1o used in the experiments conducted by Miller and Urey8ti 3zv dlaw1- koajc :b)51ot.


Describe how this experiment showed that the origin of life was possible on early Earth.

  In the early 19th century,c- osog7csj3 )3uca 8v vitalism was a widely accepted theory. This theory suggested that organic compoc3o-j 3s8g7vcsc)a ou unds, those found in living organisms, could only be produced through a "vital force" present in living matter.

What was the role of urea in falsifying the theory of vitalism?

  Which of the following is not *pz (9ins3yhu e p0z4tevidence to support that the last universal common ancestor (LUCA)3i4ez psph z*0(t yun9 could have emerged at hydrothermal vents?

Researchers carried out a similar ex t-il5-hob 3 vq s/e:kyn/x1toperiment to Louis Pasteur’s famous experiment disproving spontaneous generation, uhy/es-il: qt5 3t-/ bknvo1oxsing the set up below at 30°C.



1.Outline the theory of spontaneous generation.

2.1.State two variables that must be controlled in this experiment.

2.2.Explain why it is important to have controlled variables in this study.

3.1.State the letters of three flasks which would show signs of decomposition of broth.

3.2.Explain your answer to part (i).

4.Suggest, with reasons, how the results of the study would differ if the flasks were incubated at 4°C.

  Louis Pasteur's famous experiments disproving spontaneous ge(3e : ift6enmbneration were replicated by placintn(mi 3f :6ebeg broth into various flasks.

Which two flasks would show the presence of microorganisms in the results?

Below is a diagram of Euglena a photosynthwh ( zb21imdpd-.xwbn+2 l/ pjetic protist. It is a living cell which can carry out all the functions of life.21i ddn/j-p2zb hxwbm( wlp.+

1.1.State which function of life the flagellum is adapted for.

1.2.State which function of life is enabled by the contractile vacuole.

2.Outline why viruses are not regarded as living organisms.

3.State two main principles of the cell theory

4.Explain how the properties of phospholipids mean they naturally form vesicles when in aqueous solution.

5.Explain how the formation of vesicles was important in the evolution of cells.