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.
Also, as with traditional (but not Roth) IRAs, you must begin taking distributions from the account once you turn 70-1/2. You can start earlier, without penalties, beginning at age 59-1/2. The SEP-IRA's contribution limits separate it from traditional and Roth IRAs -- in a big way. The more prevalent IRAs have a contribution limit of $5,500 for 2017, plus a $1,000 catch-up contribution for those aged 50 and older.