What is a key difference between endocrine and exocrine glands?

Endocrine glands release hormones directly into their surroundings, while exocrine glands release secretions into ducts.

Endocrine glands release hormones into ducts, while exocrine glands release secretions directly into their surroundings.

Endocrine glands primarily regulate metabolism, while exocrine glands primarily aid in digestion.

Endocrine glands are always larger than exocrine glands.

Which hormones are secreted by the posterior pituitary gland?

Oxytocin and Antidiuretic Hormone (ADH)

Thyroid Stimulating Hormone and Luteinizing Hormone

Follicle Stimulating Hormone and Adrenocorticotropic Hormone

Which hormones are produced by the thyroid gland and what are their primary roles?

Thyroxine (T4) and Triiodothyronine (T3) for metabolic processes; Calcitonin to lower blood calcium.

Parathyroid Hormone (PTH) to raise blood calcium; Thymosin for T-cell development.

Epinephrine and Norepinephrine for fight-or-flight; Cortisol for stress response.

Insulin to lower blood glucose; Glucagon to raise blood glucose.

How do insulin and glucagon, produced by the pancreas, regulate blood glucose levels?

Insulin tells body cells to take in glucose, while glucagon stimulates the liver to convert glycogen to glucose.

Insulin raises blood glucose, while glucagon lowers it.

Both insulin and glucagon stimulate the liver to store glucose as glycogen.

Insulin promotes uterine lining growth, while glucagon helps make sperm cells.

Which hormones are produced by the ovaries and what functions do they regulate?

Estrogen and progesterone; regulate female reproductive functions

Testosterone; regulate male reproductive functions

Insulin; regulate blood sugar levels

Cortisol; regulate stress response

What is the primary purpose of the feedback mechanism in the body?

To control the amount of hormones present in the blood

To increase the body's sensitivity to external stimuli

To accelerate the production of all hormones

To prevent any hormone secretion

What is one of the primary functions of thyroxin in the body?

Increases the metabolism of food.

What is the primary cause of goitre, as described in the feedback mechanism?

Excessive production of thyroxin.

Overactivity of the pituitary gland.

Cells absorbing too much thyroxin.

Why is iodized salt commonly used in our diet?

To ensure sufficient iodine intake, as the body cannot synthesize it.

To increase blood sugar levels.

The body can synthesize iodine on its own.

To reduce the activity of the pituitary gland.

Endocrine System: Structures and Functions

Interactive Video

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Science

•

11th Grade

•

Practice Problem

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Easy

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NGSS

HS-LS1-3, MS-LS1-3

Standards-aligned

Robin Brunson

Used 1+ times

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28 questions

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FILL IN THE BLANK QUESTION

30 sec • 1 pt

Fill in the blank: The pituitary gland is located at the base of the ___.

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30 sec • Ungraded

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Endocrine System: Structures and Functions

28 questions

Fill in the blank: The pituitary gland is located at the base of the ___.

Which gland regulates metabolism, energy, and growth?

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