280221
One similarity between enzymes and hormones is that:
1 both are proteins
2 both can be used again and again
3 both are used in minute amount
4 both act at a particular$\text{Ph}$
Explanation:
(c) One similarity between enzymes and hormones is that both are used in minute amount.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280222
Which of the followings is the more scientific definition of hormone?
1 They are extracellular messengers.
2 They always act at distantly located target organ.
3 They are the products of well organized endocrine glands.
4 They are non-nutrient chemicals that act as intercellular messengers.
Explanation:
(d) Hormones are chemical messengers of the body that transfers information from one set of cells to another.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280223
Which of the following statements is correct in relation to the endocrine system?
1 Organs in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones.
2 Non-nutrient chemicals produced by the body in trace amount that act as intercellular messenger are known as hormones.
3 Releasing and inhibitory hormones are produced by the pituitary gland .
4 Adenohypophysis is under direct neural regulation of the hypothalamus.
Explanation:
(b) Hormones are non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts.
Gastrointestinal tracts secretes four major peptide hormones - gastrin, secretin, cholecystokinin (CCK) and gastric inhibitory peptide (GIP) while juxtaglomerular cells of kidney secretes erythropoietin, a peptide hormone. Releasing and inhibitory hormones are produced by hypothalamus. Neurohypophysis or posterior pituitary is under direct neural regulation of the hypothalamus.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280224
Which of the following statements does not hold true for the hormones?
1 They act on target organs away from the source glands
2 They are secreted directly into the blood
3 They are used again and again like catalysts
4 They are produced in very minute quantities and are biologically very active
Explanation:
(c) Hormones are secreted by endocrine glands directly into the blood. They are not used again and again like catalyst.
280221
One similarity between enzymes and hormones is that:
1 both are proteins
2 both can be used again and again
3 both are used in minute amount
4 both act at a particular$\text{Ph}$
Explanation:
(c) One similarity between enzymes and hormones is that both are used in minute amount.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280222
Which of the followings is the more scientific definition of hormone?
1 They are extracellular messengers.
2 They always act at distantly located target organ.
3 They are the products of well organized endocrine glands.
4 They are non-nutrient chemicals that act as intercellular messengers.
Explanation:
(d) Hormones are chemical messengers of the body that transfers information from one set of cells to another.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280223
Which of the following statements is correct in relation to the endocrine system?
1 Organs in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones.
2 Non-nutrient chemicals produced by the body in trace amount that act as intercellular messenger are known as hormones.
3 Releasing and inhibitory hormones are produced by the pituitary gland .
4 Adenohypophysis is under direct neural regulation of the hypothalamus.
Explanation:
(b) Hormones are non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts.
Gastrointestinal tracts secretes four major peptide hormones - gastrin, secretin, cholecystokinin (CCK) and gastric inhibitory peptide (GIP) while juxtaglomerular cells of kidney secretes erythropoietin, a peptide hormone. Releasing and inhibitory hormones are produced by hypothalamus. Neurohypophysis or posterior pituitary is under direct neural regulation of the hypothalamus.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280224
Which of the following statements does not hold true for the hormones?
1 They act on target organs away from the source glands
2 They are secreted directly into the blood
3 They are used again and again like catalysts
4 They are produced in very minute quantities and are biologically very active
Explanation:
(c) Hormones are secreted by endocrine glands directly into the blood. They are not used again and again like catalyst.
280221
One similarity between enzymes and hormones is that:
1 both are proteins
2 both can be used again and again
3 both are used in minute amount
4 both act at a particular$\text{Ph}$
Explanation:
(c) One similarity between enzymes and hormones is that both are used in minute amount.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280222
Which of the followings is the more scientific definition of hormone?
1 They are extracellular messengers.
2 They always act at distantly located target organ.
3 They are the products of well organized endocrine glands.
4 They are non-nutrient chemicals that act as intercellular messengers.
Explanation:
(d) Hormones are chemical messengers of the body that transfers information from one set of cells to another.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280223
Which of the following statements is correct in relation to the endocrine system?
1 Organs in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones.
2 Non-nutrient chemicals produced by the body in trace amount that act as intercellular messenger are known as hormones.
3 Releasing and inhibitory hormones are produced by the pituitary gland .
4 Adenohypophysis is under direct neural regulation of the hypothalamus.
Explanation:
(b) Hormones are non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts.
Gastrointestinal tracts secretes four major peptide hormones - gastrin, secretin, cholecystokinin (CCK) and gastric inhibitory peptide (GIP) while juxtaglomerular cells of kidney secretes erythropoietin, a peptide hormone. Releasing and inhibitory hormones are produced by hypothalamus. Neurohypophysis or posterior pituitary is under direct neural regulation of the hypothalamus.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280224
Which of the following statements does not hold true for the hormones?
1 They act on target organs away from the source glands
2 They are secreted directly into the blood
3 They are used again and again like catalysts
4 They are produced in very minute quantities and are biologically very active
Explanation:
(c) Hormones are secreted by endocrine glands directly into the blood. They are not used again and again like catalyst.
280221
One similarity between enzymes and hormones is that:
1 both are proteins
2 both can be used again and again
3 both are used in minute amount
4 both act at a particular$\text{Ph}$
Explanation:
(c) One similarity between enzymes and hormones is that both are used in minute amount.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280222
Which of the followings is the more scientific definition of hormone?
1 They are extracellular messengers.
2 They always act at distantly located target organ.
3 They are the products of well organized endocrine glands.
4 They are non-nutrient chemicals that act as intercellular messengers.
Explanation:
(d) Hormones are chemical messengers of the body that transfers information from one set of cells to another.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280223
Which of the following statements is correct in relation to the endocrine system?
1 Organs in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones.
2 Non-nutrient chemicals produced by the body in trace amount that act as intercellular messenger are known as hormones.
3 Releasing and inhibitory hormones are produced by the pituitary gland .
4 Adenohypophysis is under direct neural regulation of the hypothalamus.
Explanation:
(b) Hormones are non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts.
Gastrointestinal tracts secretes four major peptide hormones - gastrin, secretin, cholecystokinin (CCK) and gastric inhibitory peptide (GIP) while juxtaglomerular cells of kidney secretes erythropoietin, a peptide hormone. Releasing and inhibitory hormones are produced by hypothalamus. Neurohypophysis or posterior pituitary is under direct neural regulation of the hypothalamus.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280224
Which of the following statements does not hold true for the hormones?
1 They act on target organs away from the source glands
2 They are secreted directly into the blood
3 They are used again and again like catalysts
4 They are produced in very minute quantities and are biologically very active
Explanation:
(c) Hormones are secreted by endocrine glands directly into the blood. They are not used again and again like catalyst.
280221
One similarity between enzymes and hormones is that:
1 both are proteins
2 both can be used again and again
3 both are used in minute amount
4 both act at a particular$\text{Ph}$
Explanation:
(c) One similarity between enzymes and hormones is that both are used in minute amount.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280222
Which of the followings is the more scientific definition of hormone?
1 They are extracellular messengers.
2 They always act at distantly located target organ.
3 They are the products of well organized endocrine glands.
4 They are non-nutrient chemicals that act as intercellular messengers.
Explanation:
(d) Hormones are chemical messengers of the body that transfers information from one set of cells to another.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280223
Which of the following statements is correct in relation to the endocrine system?
1 Organs in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones.
2 Non-nutrient chemicals produced by the body in trace amount that act as intercellular messenger are known as hormones.
3 Releasing and inhibitory hormones are produced by the pituitary gland .
4 Adenohypophysis is under direct neural regulation of the hypothalamus.
Explanation:
(b) Hormones are non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts.
Gastrointestinal tracts secretes four major peptide hormones - gastrin, secretin, cholecystokinin (CCK) and gastric inhibitory peptide (GIP) while juxtaglomerular cells of kidney secretes erythropoietin, a peptide hormone. Releasing and inhibitory hormones are produced by hypothalamus. Neurohypophysis or posterior pituitary is under direct neural regulation of the hypothalamus.
NCERT Page-331 / N-239
Chemical Coordination and Integration
280224
Which of the following statements does not hold true for the hormones?
1 They act on target organs away from the source glands
2 They are secreted directly into the blood
3 They are used again and again like catalysts
4 They are produced in very minute quantities and are biologically very active
Explanation:
(c) Hormones are secreted by endocrine glands directly into the blood. They are not used again and again like catalyst.
