Chloroplast: Photosynthesis. In photosynthesis, the sun's solar energy is converted to chemical energy. The chemical energy is stored in the form of glucose (sugar). Carbon dioxide, water, and sunlight are used to produce glucose, oxygen, and water.
SEP IRA Contribution Limits 2013. You can contribute up to 25% of your total salary or 20% of your adjusted annual income to a SEP IRA, up to a limit of $51,000 in tax year 2013. This is almost twice the limit for 401(k) investors.
Roth IRA contribution limits also remain the same in 2015. You can contribute up to $5,500 in a Roth if you are younger than age 50, or $6,500 if you are older. But Roths are different than traditional IRAs. Roth IRA contributions are not tax deductible, they are made after tax.f you have a SEP IRA, you may contribute up to $53,000, or 25% of up to $265,000 in gross income in 2015. Business owners can also have their own Individual 401(k) or Solo 401(k) . In 2015, limits on 401(k)s are up to $18,000. The 401(k) catch-up contribution limit is also up.