286883
Which of the following statements is not correct regarding neural tissue?
1 It exerts the greatest control over the body's responsiveness to changing conditions.
2 Chondrocytes, the unit of neural system are excitable cells.
3 Neuroglial cells protect and support neurons.
4 When a neuron is suitably stimulated, an electrical disturbance is generated.
Explanation:
(b) Neurons, the unit of neural system are excitable cells while chondrocytes are cartilagenous cells.
NCERT Page-105 & 106
Structural Organization in Animals(NCERT)
286884
The secretions of endocrine glands are released directly
1 into the skin surface
2 into the blood stream
3 into a gland duct
4 into the brain tissue
Explanation:
(b) On the basis of the mode of pouring of secretion, gland are divided into - (a) exocrine, and (b) endocrine glands.
Exocrine glands secrete mucus, saliva, oil, digestive enzymes and other cell products. These products are released through ducts or tubes. In contrast, endocrine glands do not have ducts. Their products called hormones are secreted directly into the fluid bathing the gland.
NCERT Page-102
Structural Organization in Animals(NCERT)
286885
Mast cells are associated with
1 exocrine glands
2 endocrine glands
3 areolar connective tissue
4 neural tissue
Explanation:
(c) Mast cell are a cell found in connective tissue that contains numerous basophilic granules and release substances such as heparin and histamine in response to injury or inflammation of tissues.
NCERT Page-103
Structural Organization in Animals(NCERT)
286886
Which of the following is involved in the production of new blood cells?
1 Adipose cell
2 Bone marrow
3 Liver
4 Matrix
Explanation:
(b) Bone marrow is the flexible tissue in the interior of bones. In humans, red blood cells are produced by cores of bone marrow in the heads of long bones in a process known as haematopoiesis. Bone marrow is also a key component of the lymphatic system, producing the lymphocytes that support the body's immune system.
286883
Which of the following statements is not correct regarding neural tissue?
1 It exerts the greatest control over the body's responsiveness to changing conditions.
2 Chondrocytes, the unit of neural system are excitable cells.
3 Neuroglial cells protect and support neurons.
4 When a neuron is suitably stimulated, an electrical disturbance is generated.
Explanation:
(b) Neurons, the unit of neural system are excitable cells while chondrocytes are cartilagenous cells.
NCERT Page-105 & 106
Structural Organization in Animals(NCERT)
286884
The secretions of endocrine glands are released directly
1 into the skin surface
2 into the blood stream
3 into a gland duct
4 into the brain tissue
Explanation:
(b) On the basis of the mode of pouring of secretion, gland are divided into - (a) exocrine, and (b) endocrine glands.
Exocrine glands secrete mucus, saliva, oil, digestive enzymes and other cell products. These products are released through ducts or tubes. In contrast, endocrine glands do not have ducts. Their products called hormones are secreted directly into the fluid bathing the gland.
NCERT Page-102
Structural Organization in Animals(NCERT)
286885
Mast cells are associated with
1 exocrine glands
2 endocrine glands
3 areolar connective tissue
4 neural tissue
Explanation:
(c) Mast cell are a cell found in connective tissue that contains numerous basophilic granules and release substances such as heparin and histamine in response to injury or inflammation of tissues.
NCERT Page-103
Structural Organization in Animals(NCERT)
286886
Which of the following is involved in the production of new blood cells?
1 Adipose cell
2 Bone marrow
3 Liver
4 Matrix
Explanation:
(b) Bone marrow is the flexible tissue in the interior of bones. In humans, red blood cells are produced by cores of bone marrow in the heads of long bones in a process known as haematopoiesis. Bone marrow is also a key component of the lymphatic system, producing the lymphocytes that support the body's immune system.
286883
Which of the following statements is not correct regarding neural tissue?
1 It exerts the greatest control over the body's responsiveness to changing conditions.
2 Chondrocytes, the unit of neural system are excitable cells.
3 Neuroglial cells protect and support neurons.
4 When a neuron is suitably stimulated, an electrical disturbance is generated.
Explanation:
(b) Neurons, the unit of neural system are excitable cells while chondrocytes are cartilagenous cells.
NCERT Page-105 & 106
Structural Organization in Animals(NCERT)
286884
The secretions of endocrine glands are released directly
1 into the skin surface
2 into the blood stream
3 into a gland duct
4 into the brain tissue
Explanation:
(b) On the basis of the mode of pouring of secretion, gland are divided into - (a) exocrine, and (b) endocrine glands.
Exocrine glands secrete mucus, saliva, oil, digestive enzymes and other cell products. These products are released through ducts or tubes. In contrast, endocrine glands do not have ducts. Their products called hormones are secreted directly into the fluid bathing the gland.
NCERT Page-102
Structural Organization in Animals(NCERT)
286885
Mast cells are associated with
1 exocrine glands
2 endocrine glands
3 areolar connective tissue
4 neural tissue
Explanation:
(c) Mast cell are a cell found in connective tissue that contains numerous basophilic granules and release substances such as heparin and histamine in response to injury or inflammation of tissues.
NCERT Page-103
Structural Organization in Animals(NCERT)
286886
Which of the following is involved in the production of new blood cells?
1 Adipose cell
2 Bone marrow
3 Liver
4 Matrix
Explanation:
(b) Bone marrow is the flexible tissue in the interior of bones. In humans, red blood cells are produced by cores of bone marrow in the heads of long bones in a process known as haematopoiesis. Bone marrow is also a key component of the lymphatic system, producing the lymphocytes that support the body's immune system.
286883
Which of the following statements is not correct regarding neural tissue?
1 It exerts the greatest control over the body's responsiveness to changing conditions.
2 Chondrocytes, the unit of neural system are excitable cells.
3 Neuroglial cells protect and support neurons.
4 When a neuron is suitably stimulated, an electrical disturbance is generated.
Explanation:
(b) Neurons, the unit of neural system are excitable cells while chondrocytes are cartilagenous cells.
NCERT Page-105 & 106
Structural Organization in Animals(NCERT)
286884
The secretions of endocrine glands are released directly
1 into the skin surface
2 into the blood stream
3 into a gland duct
4 into the brain tissue
Explanation:
(b) On the basis of the mode of pouring of secretion, gland are divided into - (a) exocrine, and (b) endocrine glands.
Exocrine glands secrete mucus, saliva, oil, digestive enzymes and other cell products. These products are released through ducts or tubes. In contrast, endocrine glands do not have ducts. Their products called hormones are secreted directly into the fluid bathing the gland.
NCERT Page-102
Structural Organization in Animals(NCERT)
286885
Mast cells are associated with
1 exocrine glands
2 endocrine glands
3 areolar connective tissue
4 neural tissue
Explanation:
(c) Mast cell are a cell found in connective tissue that contains numerous basophilic granules and release substances such as heparin and histamine in response to injury or inflammation of tissues.
NCERT Page-103
Structural Organization in Animals(NCERT)
286886
Which of the following is involved in the production of new blood cells?
1 Adipose cell
2 Bone marrow
3 Liver
4 Matrix
Explanation:
(b) Bone marrow is the flexible tissue in the interior of bones. In humans, red blood cells are produced by cores of bone marrow in the heads of long bones in a process known as haematopoiesis. Bone marrow is also a key component of the lymphatic system, producing the lymphocytes that support the body's immune system.
