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IGCSE Biology Extended14.3.2—Specific endocrine glands and stateTopic Practice

14.3.2—Specific endocrine glands and state

• Identify in diagrams and images specific endocrine glands and state the hormones they secrete, limited to: (a) adrenal glands and adrenaline (b) pancreas and insulin (c) testes and testosterone (d) ovaries and oestrogen

Question 2(c)

[Maximum number: 2]

Insulin is a protein made by cells in the pancreas.
Fig. 2.1 shows how insulin is made in a pancreatic cell.

Fig. 2.1

Fig. 2.1

State the names of two substances, other than insulin, that are secreted by the pancreas. 1
2

Question 3(b)(i)

[Maximum number: 1]

Bacteria are used in many biotechnological processes.

Insulin is one of many human proteins that are made by genetically engineered bacteria.

Some people cannot produce insulin because their immune system has destroyed the cells that make insulin.

State the organ that contains the cells that have been destroyed.

Question 3(b)

[Maximum number: 5]

The pancreas is an organ that has roles in the digestive and hormonal systems of humans.
Fig. 3.1 shows part of the alimentary canal and some of the associated organs.

Fig. 3.1

Fig. 3.1

The pancreas secretes hormones into the blood and enzymes into the pancreatic duct. The enzymes are released into the alimentary canal.

Complete Table 3.1 by stating the hormones and enzymes that are secreted by the pancreas.

Table 3.1

Table 3.1

Question 3(d)(ii)

[Maximum number: 1]

Fig. 3.1 shows a section through a kidney.

Fig. 3.1

Fig. 3.1

Testosterone is a steroid hormone that is also taken as a drug to improve sporting performance.

State where testosterone is produced in the body.

Question 3(a)(i)

[Maximum number: 1]

Fig. 3.1 shows the changes in the concentrations of the hormones FSH and LH during a menstrual cycle.

Fig. 3.1

Fig. 3.1

Suggest the target organ for FSH.

Question 4(b)(vi)

[Maximum number: 1]

The responses of the human body to danger are coordinated by the nervous and endocrine systems.

Fig. 4.1 shows the sequence of events that occurs in response to a dangerous situation that is detected by the eyes.

Fig. 4.1

Fig. 4.1

Identify the gland labelled Q.

Question 4

Question 4(c)

(a)

Blood glucose concentration is maintained at a constant set point using the hormones glucagon and insulin.

[ 2 ]

Question 4(c)(i)

(i)

State the organ that secretes glucagon.

[ 1 ]

Question 4(c)(ii)

(ii)

Describe the effect of glucagon on the body.

[ 1 ]

Question 25

[Maximum number: 1]

Which glands are endocrine glands?

A

adrenal, pancreas, testes

B

adrenal, ovaries, salivary

C

ovaries, sweat, testes

D

pancreas, salivary, sweat

Question 28

[Maximum number: 1]

Which hormone is used in contraceptive pills?

A

insulin

B

LH

C

FSH

D

progesterone

Question 5(a)(i)

[Maximum number: 1]

The testes are part of the endocrine system because they produce hormones.

State the name of the hormone released from the testes.

0 selected