
(a)
Interpretation:
It should be determined that where is LH produced, and to what class of hormones does it belong.
Concept introduction:
Hormones are chemical substances synthesized in small amounts by endocrine tissues and carried by blood stream to another tissue, where it acts as a messenger to regulate the function of the target tissue or organ.
There are three major classes of molecules which function as hormones in vertebrates and they are,
- Amino acid derivatives: It is a derivative of an amino acid formed by the reaction at the side chain
functional group ,carboxylic acid group, and amino group or by the replacement of a hydrogen atom by heteroatom. - Polypeptides: Polypeptides are organic
polymers having several amino acids attached to each other in a chain. - Steroid: Steroids are a type of organic compound having a molecular structure with four rings connected to each other.
Follicle stimulating hormone (FSH) and luteinizing hormone (LH) are the two hormones involved in fertility which are produced by the pituitary gland.
(a)

Explanation of Solution
LH (luteinizing hormone) is an important hormone involved in fertility which is produced by the pituitary gland. It is a polypeptide hormone.
(b)
Interpretation:
It should be determined that where is progesterone produced, and to what class of hormones does it belong.
Concept introduction:
Hormones are chemical substances synthesized in small amounts by endocrine tissues and carried by blood stream to another tissue, where it acts as a messenger to regulate the function of the target tissue or organ.
There are three major classes of molecules which function as hormones in vertebrates and they are,
- Amino acid derivatives: It is a derivative of an amino acid formed by the reaction at the side chain functional group, carboxylic acid group, and amino group or by the replacement of a hydrogen atom by heteroatom.
- Polypeptides: Polypeptides are organic polymers having several amino acids attached to each other in a chain.
- Steroid: Steroids are a type of organic compound having a molecular structure with four rings connected to each other.
(b)

Explanation of Solution
Progesterone is responsible for the physiological changes in women at specific phases of their life starting in puberty. It is a steroid hormone produced in ovaries.
(c)
Interpretation:
It should be determined that whether the progesterone producing cells have LH receptor on their surface or does LH enters the cells to carry out its function.
Concept introduction:
Hormones are chemical substances synthesized in small amounts by endocrine tissues and carried by blood stream to another tissue, where it acts as a messenger to regulate the function of the target tissue or organ.
There are three major classes of molecules which function as hormones in vertebrates and they are,
- Amino acid derivatives: It is a derivative of an amino acid formed by the reaction at the side chain functional group, carboxylic acid group, and amino group or by the replacement of a hydrogen atom by heteroatom.
- Polypeptides: Polypeptides are organic polymers having several amino acids attached to each other in a chain.
- Steroid: Steroids are a type of organic compound having a molecular structure with four rings connected to each other. They are lipid soluble
Follicle stimulating hormone (FSH) and luteinizing hormone (LH) are the two hormones involved in fertility which are produced by the pituitary gland.
(c)

Explanation of Solution
Progesterone producing cells have LH receptor. LH stimulates both estrogen and progesterone production. Before ovulation LH release is stimulated by estrogen but after ovulation it is inhibited by both estrogen and progesterone.
(d)
Interpretation:
It should be explained that whether the progesterone bind to a cell-surface receptor or does it enter the cell to carry out its function.
Concept introduction:
Hormones are chemical substances synthesized in small amounts by endocrine tissues and carried by blood stream to another tissue, where it acts as a messenger to regulate the function of the target tissue or organ.
There are three major classes of molecules which function as hormones in vertebrates and they are,
- Amino acid derivatives: It is a derivative of an amino acid formed by the reaction at the side chain functional group, carboxylic acid group, and amino group or by the replacement of a hydrogen atom by heteroatom.
- Polypeptides: Polypeptides are organic polymers having several amino acids attached to each other in a chain.
- Steroid: Steroids are a type of organic compound having a molecular structure with four rings connected to each other. This type of hormone is soluble in lipids.
Follicle stimulating hormone (FSH) and luteinizing hormone (LH) are the two hormones involved in fertility which are produced by the pituitary gland.
(d)

Explanation of Solution
Progesterone is responsible for the physiological changes in women at specific phases of their life starting in puberty. It is a steroid hormone produced in ovaries. Steroid hormones are lipid soluble and so it can enter cells.
Want to see more full solutions like this?
Chapter 28 Solutions
EP FUND.OF GENERAL,ORG...-MOD.MASTERING
- Draw the reaction between sphingosine and arachidonic acid. Draw out the full structures.arrow_forwardDraw both cis and trans oleic acid. Explain why cis-oleic acid has a melting point of 13.4°C and trans-oleic acid has a melting point of 44.5°C.arrow_forwardDraw the full structure of the mixed triacylglycerol formed by the reaction of glycerol and the fatty acids arachidic, lauric and trans-palmitoleic. Draw the line structure.arrow_forward
- Draw out the structure for lycopene and label each isoprene unit. "Where is lycopene found in nature and what health benefits does it provide?arrow_forwardWhat does it mean to be an essential fatty acid? What are the essential fatty acids?arrow_forwardCompare and contrast primary and secondary active transport mechanisms in terms of energy utilisation and efficiency. Provide examples of each and discuss their physiological significance in maintaining ionic balance and nutrient uptake. Rubric Understanding the key concepts (clearly and accurately explains primary and secondary active transport mechanisms, showing a deep understanding of their roles) Energy utilisation analysis ( thoroughly compares energy utilisation in primary and secondary transport with specific and relevant examples Efficiency discussion Use of examples (provides relevant and accurate examples (e.g sodium potassium pump, SGLT1) with clear links to physiological significance. Clarity and structure (presents ideas logically and cohesively with clear organisation and smooth transition between sections)arrow_forward
- 9. Which one of the compounds below is the major organic product obtained from the following reaction sequence, starting with ethyl acetoacetate? 요요. 1. NaOCH2CH3 CH3CH2OH 1. NaOH, H₂O 2. H3O+ 3. A OCH2CH3 2. ethyl acetoacetate ii A 3. H3O+ OH B C D Earrow_forward7. Only one of the following ketones cannot be made via an acetoacetic ester synthesis. Which one is it? Ph کہ A B C D Earrow_forward2. Which one is the major organic product obtained from the following reaction sequence? HO A OH 1. NaOEt, EtOH 1. LiAlH4 EtO OEt 2. H3O+ 2. H3O+ OH B OH OH C -OH HO -OH OH D E .CO₂Etarrow_forward
- what is a protein that contains a b-sheet and how does the secondary structure contributes to the overall function of the protein.arrow_forwarddraw and annotate a b-sheet and lable the hydrogen bonding. what is an example that contains the b-sheet and how the secondary structure contributes to the overall function of your example protein.arrow_forwardFour distinct classes of interactions (inter and intramolecular forces) contribute to a protein's tertiary and quaternary structures. Name the interaction then describe the amino acids that can form this type of interaction. Draw and annotate a diagram of the interaction between two amino acids.arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax




