Receptors for nonsteroid hormones are located in _____.
  • association with a cell's plasma membrane.Since nonsteroid hormones do not cross a cell's plasma membrane, their receptors are located in association with the plasma membrane.
  • It has different receptors for each hormone. This allows a cell to respond to multiple signals.
  • It binds to and activates protein kinase A, which then phosphorylates other enzymes.cAMP binds to and activates protein kinase A, which then phosphorylates other enzymes in the signal transduction pathway.
  • They have different receptors.The hormone could spark very different processes depending on which receptor is triggered.
Which of the following is a structure that allows hormone-receptor complexes to bind to specific DNA sequences?
  • It binds to and activates protein kinase A, which then phosphorylates other enzymes.cAMP binds to and activates protein kinase A, which then phosphorylates other enzymes in the signal transduction pathway.
  • They would both be obese. A deficiency in either signal or both signal and receptor results in an obese individual.
  • epinephrine and oxytocin. Both epinephrine and oxytocin are nonsteroid hormones.
  • Zinc finger. A zinc finger is a distinctive DNA-binding domain on some hormone receptors that is exposed when hormone-receptor complexes are formed.
Which of the following statements about lipid-soluble hormones is true?
  • nonsteroid hormones act via signal transduction pathways; steroid hormones do not act via signal transduction pathways. Since they do not enter the cell, nonsteroid hormones act via signal transduction pathways.
  • They have different receptors.The hormone could spark very different processes depending on which receptor is triggered.
  • Zinc finger. A zinc finger is a distinctive DNA-binding domain on some hormone receptors that is exposed when hormone-receptor complexes are formed.
  • They act by affecting the transcription of genes. Lipid-soluble hormones act by affecting the transcription of genes.
Metamorphosis in frogs is stimulated by which of the following hormones?
  • thyroid hormone
  • middle childhood
  • pituitary
  • kidney
Which of these is a nonsteroid hormone?estrogen testosterone both estrogen and testosterone oxytocin epinephrine and oxytocin
  • epinephrine and oxytocin. Both epinephrine and oxytocin are nonsteroid hormones.
  • testosterone and Müllerian-inhibiting hormone
  • Zinc finger. A zinc finger is a distinctive DNA-binding domain on some hormone receptors that is exposed when hormone-receptor complexes are formed.
  • Skeletal development in middle childhood is slower than in early childhood.
Ob/ob mice lack which of the following?
  • kidney
  • leptin
  • Steroids.
  • endocrine
Which of the following would be most improved following a shot of epinephrine?
  • epinephrine and oxytocin. Both epinephrine and oxytocin are nonsteroid hormones.
  • the effector
  • improved escape from predators. Epinephrine is also known as adrenaline.
  • Skeletal development in middle childhood is slower than in early childhood.
What is the role of cAMP in the signal transduction pathway activated by epinephrine?
  • Skeletal development in middle childhood is slower than in early childhood.
  • It binds to and activates protein kinase A, which then phosphorylates other enzymes.cAMP binds to and activates protein kinase A, which then phosphorylates other enzymes in the signal transduction pathway.
  • pituitary
  • Zinc finger. A zinc finger is a distinctive DNA-binding domain on some hormone receptors that is exposed when hormone-receptor complexes are formed.
How would the phenotype of a doubly homozygous individual (ob/ob db/db) compare to a singly homozygous individual (ob/ob)?
  • They would both be obese. A deficiency in either signal or both signal and receptor results in an obese individual.
  • They have different receptors.The hormone could spark very different processes depending on which receptor is triggered.
  • Only the uterus, hypothalamus, and mammary glands have estrogen receptors.
  • Zinc finger. A zinc finger is a distinctive DNA-binding domain on some hormone receptors that is exposed when hormone-receptor complexes are formed.
Hormones exert what type of cell-to-cell signaling?
  • Steroids.
  • leptin
  • pituitary
  • endocrine
Which type of hormone is lipid soluble?
  • Steroids.
  • pituitary
  • leptin
  • endocrine
What accounts for the fact that the hormone estrogen only affects the uterus, hypothalamus, and mammary glands?
  • epinephrine and oxytocin. Both epinephrine and oxytocin are nonsteroid hormones.
  • Only the uterus, hypothalamus, and mammary glands have estrogen receptors.
  • They would both be obese. A deficiency in either signal or both signal and receptor results in an obese individual.
  • Skeletal development in middle childhood is slower than in early childhood.
Why might different cells be able to respond to T3 in very different ways?
  • They would both be obese. A deficiency in either signal or both signal and receptor results in an obese individual.
  • Skeletal development in middle childhood is slower than in early childhood.
  • They have different receptors.The hormone could spark very different processes depending on which receptor is triggered.
  • It has different receptors for each hormone. This allows a cell to respond to multiple signals.
Due to proximity, adrenal glands are often damaged during surgery on what organ?
  • False
  • thyroid hormone
  • pituitary
  • kidney
Describe the rate of skeletal development in middle childhood compared to adolescence.
  • It binds to and activates protein kinase A, which then phosphorylates other enzymes.cAMP binds to and activates protein kinase A, which then phosphorylates other enzymes in the signal transduction pathway.
  • Skeletal development in middle childhood is slower than in early childhood.
  • Only the uterus, hypothalamus, and mammary glands have estrogen receptors.
  • epinephrine and oxytocin. Both epinephrine and oxytocin are nonsteroid hormones.
Why are hormones better suited for regulating homeostasis rather than electrical signals alone?
  • They act by affecting the transcription of genes. Lipid-soluble hormones act by affecting the transcription of genes.
  • Hormones are long lived and can spread throughout the body. Maintenance of homeostasis requires inputs from tissues and organs throughout the body.
  • nonsteroid hormones act via signal transduction pathways; steroid hormones do not act via signal transduction pathways. Since they do not enter the cell, nonsteroid hormones act via signal transduction pathways.
  • improved escape from predators. Epinephrine is also known as adrenaline.
How can a cell respond to more than one hormone?
  • They have different receptors.The hormone could spark very different processes depending on which receptor is triggered.
  • Receptors. Hormones bind to receptors on target cells and trigger a cellular response.
  • It has different receptors for each hormone. This allows a cell to respond to multiple signals.
  • Skeletal development in middle childhood is slower than in early childhood.
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