Human Reproductive System

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What is the primary function of fats in the body?

To function as a component of digestive enzymes

To synthesize proteins and enzymes

To regulate body temperature

To build cell membranes, steroid hormones, and other cellular structures (correct)

What is the energy content of fats per gram?

11 Calories

4 Calories

7 Calories

9 Calories (correct)

Which of the following is an example of an essential fatty acid?

Lysine

Methionine

Linoleic acid (correct)

Threonine

What is the role of vitamins in the body?

To support normal metabolism Signup and view all the answers

What is the function of food vacuoles in unicellular organisms?

To fuse with lysosomes Signup and view all the answers

What is the common characteristic of essential nutrients?

They cannot be synthesized by the body and must be obtained from food Signup and view all the answers

What is the main function of the xylem tissue in a plant?

To transport water and minerals from the roots to the leaves Signup and view all the answers

What is the primary source of energy for animals?

Carbohydrates and proteins Signup and view all the answers

What is the unit of energy that indicates the amount of energy contained in food?

Calorie Signup and view all the answers

What is the main function of proteins in animal cells?

To serve as building materials for cell structures and as enzymes, hormones, and parts of muscles and bones Signup and view all the answers

How many Calories are contained in one gram of carbohydrates?

4 Calories Signup and view all the answers

What is the main function of the phloem tissue in a plant?

To transport food from the leaves to the other parts of the plant Signup and view all the answers

What is the primary function of the scrotum?

To regulate the temperature of the testes Signup and view all the answers

What is the name of the layer of the uterine wall that is composed of smooth muscle and contracts during labor?

Myometrium Signup and view all the answers

What is the term for when a fertilized egg implants outside of the uterus?

Ectopic pregnancy Signup and view all the answers

What is the primary function of the fallopian tubes?

To connect the ovaries to the uterus Signup and view all the answers

What is the hormone that stimulates the anterior pituitary gland to release FSH and LH?

GnRH Signup and view all the answers

What is the term for the cycle that prepares the uterus to capture and nourish a fertilized egg?

Menstrual cycle Signup and view all the answers

Which of the following structures has a single opening for digestion?

Gastrovascular cavity Signup and view all the answers

What is the primary function of the gizzard in the alimentary canal?

Churning and digestion of food Signup and view all the answers

What is the primary function of the epiglottis in the digestive process?

To direct food into the esophagus and prevent it from entering the larynx and trachea Signup and view all the answers

Which of the following organs produces enzymes that contribute to the breakdown of food?

Liver and pancreas Signup and view all the answers

What is the main function of the stomach in the digestive process?

To churn, mix food with secretions, and send chyme to the small intestine Signup and view all the answers

Which organ produces bile for the emulsification of fats?

Liver Signup and view all the answers

In a monogastric stomach, what is the pH range that increases the rate of breakdown of food?

pH 1.5 to 2.5 Signup and view all the answers

What is the main function of peristalsis in the digestive system?

Transportation of food through the digestive tract Signup and view all the answers

What is the primary function of the small intestine?

To mix food with digestive enzymes for final breakdown Signup and view all the answers

In which part of the digestive system does most absorption of nutrients occur?

Small intestine Signup and view all the answers

What is the main function of the pancreas in the digestive process?

To produce pancreatic juice containing digestive enzymes Signup and view all the answers

What is the primary function of the rectum?

To store and regulate the elimination of feces Signup and view all the answers