Interpret the absorption spectrums of two types of chlorophyll.

Chlorophyll is a pigment present in the chloroplasts of plants. Among different types of chlorophylls, plants contain chlorophyll a and b. These chlorophylls absorb light in the red and the blue regions of the visible light spectrum.

Due to slight difference in the side chain of the chlorophyll a and b show different absorption of visible light. Light with a wavelength of 460 nm (nano-meter) is most absorb by chlorophyll b and Light with a wavelength of 680 nm is most absorb by chlorophyll a. Chlorophyll absorbs very little light between wavelength 500 to 600 nm.  

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."