Important Hormones

Q.

Function of testis(5 points)

Q. What is feedback mechanism

Q.

What is the feedback mechanism of hormone regulation? Take the example of insulin to explain this phenomenon.

Q.

What are animal hormones?

Q.

What are the 3 roles of testosterone?

Q.

List various characteristics of hormones

Q.

What is difference between plant hormone and animal hormone?

Q. Define tropisms. Mention 5 types of tropism. [3 MARKS]

Q.

Which of the followings is not true for hormones?

1. They are not available again after the process is over.

2. Hormones are directly poured into blood.

3. They induce or inhibit bio-chemical processes.

4. Each and every hormone of human is always chemically protein.

Q. Which of the following set consists of only endocrine glands?

1. Pancreas, ovary and liver
2. Brain, heart and kidney
3. Pituitary, pineal and testis
4. Pancreas, liver and kidney

Q.

What are the divisions of pituitary gland?

Q. What is feedback mechanism? What are its advantage?

Q. Insulin is secreted by the beta-cells of _______.

1. pituitary
2. thyroid
3. pancreas
4. adrenal

Q.

Which gland is known as the ‘Master Gland’?

Q. The pituitary gland is also known as the master gland.

1. True
2. False

Q.

What are the functions of adrenal glands and the adrenalin

Q.

What is a proper and easy defination of nasties????

Q. How does feedback mechanism regulate the hormone secretion?

Q. Why is pituitary gland called the master gland? [1 MARK]

Q.

What is the characteristic feature of endocrine glands?

1. They secrete enzymes

2. They are ductless

3. They have ducts

4. They secrete oil called sebum

Q.

Oxytocin causes contraction of the________ (uterus/vessels/body)

Q.

Which is the smallest gland in the human body?

Q.

Question 2
Why is the use of iodised salt advisable?

Q. Explain the feedback mechanism to regulate the action of the hormones with the help of suitable example

Q. The pituitary gland is known as the master gland since it regulates the functions of other endocrine glands.

1. False
2. True

Q.

Match the following :

$$\begin{array}{cccc}& Gland& & Function\\ 1& Pituitary& a& Abovekidneys\\ 2& Thyroid& b& Abdomenoffemale\\ 3& Pancreas& c& Inscrotum\\ 4& Adrenal& d& Belowstomach\\ 5& Testis& e& Baseofbrain\\ 6& Ovary& f& Belowtrachea\end{array}$$

1. 1-f, 2-e, 3-d, 4-a, 5-b, 6-c

2. 1-e, 2-f, 3-d, 4-a, 5-c, 6-b

3. 1-e, 2-f, 3-a, 4-d, 5-b, 6-c

4. 1-a, 2-f, 3-d, 4-e, 5-c, 6-b

Q. Which one is a positive feedback mechanism?

1. Sexual stimulation
2. Allosteric inhibition
3. Blood pressure
4. Perspiration

Q. Which of the following glands is not an endocrine gland?

1. Pancreas
2. Testes
3. Pineal gland
4. Salivary gland

Q. Activities of the thyroid gland are controlled by Thyrotropin.

1. False
2. True

Q. Which of this term best explains the role of the endocrine system in the body?

1. Homeostasis
2. Conduction
3. Pollination
4. Adaptation