Answer:
Correct option is C
Explanation:
Shortage of carbohydrates causes the body to shift its metabolism to the production of ketone bodies.
When DNA was discovered, Watson and Crick saw that the strands of the double helix are lined up in the opposite direction of each other. This type of orientation is called the antiparallel orientation.
The antiparallel orientation is a type of orientation showing two polymers present side by side but running in the opposite direction. The best example of this is the deoxyribo nucleic acid (DNA). DNA molecule is made up of a pair of polynucleotide strands which are antiparallel. The antiparallel orientation of the DNA facilitates the hydrogen bonding between the two complimentary strands. This is also important for the processes of DNA replication and transcription.
The correct answer is C
The plasma membrane is a structure that protects the cell and it's made out of a lipid bi-layer, sugars and proteins. The proteins of the plasma membrane have many functions, some of them are structural, some carry out the cell transport of important molecules and some of them help the cell reactions and are called membrane enzymes . Enzymes are proteins that are capable to speed up a chemical reaction acting as catalysts.
Answer:
Progesterone is one of the female sex hormones which performs important function during menstrual cycle, pregnancy and embryo development.
During follicular phase, it helps in the ovulation while during luteal phase it plays an important function of preparing the endometrium lining of the uterus. In addition, it also inhibits or decreases the production of FSH and LH during this phase with the help of negative feedback mechanism.
Progesterone gives negative feedback to hypothalamus and anterior pituitary which decreases or inhibits the secretion of FSH and LH. It is important as it prevents the ovulation of second egg prior to fertilization.