When light shines from one side, seedlings grow towards the light. Fig. 2.3 shows a diagram of a seedling growing towards a light source. The angle of growth is shown on the diagram. Fig. 2.3 Plan an investigation to find out how light intensity affects the angle at which the seedling grows. ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . .........................................................................................................................................

Biology

IGCSE&ALevel

CAIE

Exam No：0610_s24_qp_52 Year：2024 Question No：2(c)

Answer:

Knowledge points:

3.1.1 Define diffusion as the net movement of particles from a region of their higher concentration to a region of their lower concentration down a concentration gradient, as a result of their random movement

3.1.2 Describe the importance of diffusion of gases and solutes

3.1.3 State that substances move into and out of cells by diffusion through the cell membrane

3.1.4 State that the energy for diffusion comes from the kinetic energy of random movement of molecules and ions

3.1.5 Investigate the factors that influence diffusion, limited to surface area, temperature, concentration gradients and distance

Answer:

Knowledge points:

Solution:

Related Question