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Name 3 features of plant root cells and how they allow the cells to absorb ions from the soil

Many mitochondria - production of ATP during aerobic respiration which allows active transport to take place for uptake of ions
Many root hairs - Increases surface area for maximum diffusion
La...

Answered by Caroline D. • Biology tutor

2017 Views

Differentiate y=x^3+ 7x-ln(2)

Dy/dx=3x²+7

Answered by Shrey J. • Maths tutor

2858 Views

State and explain the general trend in the first ionisation energies of the Period 2 elements Lithium to Fluorine.

The general trend is that the first ionisation energies increase across the period.First ionisation energies increase across the period as from Lithium to Fluorine the nuclear charge is increasing yet the...

Answered by Alice M. • Chemistry tutor

4869 Views

How do I form the imperfect?

The imperfect tense is used for ongoing actions (e.g. was doing) or actions done regularly in the past (e.g. used to do). It is formed by taking the endings off a verb to form its "stem". For -a...

Answered by Zain A. • Spanish tutor

1272 Views

Explain why the first ionisation energy of barium is less than the first ionisation energy of calcium.

Barium is in the sixth period, Calcium is in the fourth. Therefore, Barium experiences more shielding, resulting in weaker attraction of the nucleus for outermost electrons.

Answered by Joseph F. • Chemistry tutor

4718 Views