A Trip Through A 5th Grader's Digestive System

Explanation
The heart is not part of the digestive tract. The digestive tract is a series of organs that are responsible for the digestion and absorption of food, starting from the mouth and ending at the anus. The stomach, rectum, and colon are all part of this tract, as they play important roles in the breakdown and processing of food. However, the heart is not involved in the digestion process. It is a muscular organ that pumps blood throughout the body, supplying oxygen and nutrients to all the organs, including the digestive system.

Explanation
All of the above options provide the most energy because they are all nutrient-dense foods. Brown rice is a complex carbohydrate that provides a steady release of energy. Spinach salad contains vitamins, minerals, and fiber, which help in the production and utilization of energy. Veggies, in general, are low in calories but high in nutrients, providing sustained energy. Therefore, all these options are good sources of energy.

Explanation
The statement that it takes 36 hours for waste to pass through the stomach is false. The stomach is not the primary organ responsible for waste elimination. The stomach primarily breaks down food into smaller particles and mixes it with digestive juices. The waste then moves into the small intestine, where further digestion and absorption of nutrients occur. From there, it passes into the large intestine, where water is absorbed and waste is formed into feces. The entire process of digestion and waste elimination takes longer than 36 hours.

Explanation
Carbohydrates in food are broken down during digestion into glucose, which is a simple sugar. Glucose is then absorbed into the bloodstream and used as a source of energy by the body's cells. Therefore, the correct answer is glucose.

Explanation
The stomach uses acids and enzymes to break down the food. It secretes hydrochloric acid and digestive enzymes such as pepsin to help in the digestion process. The acidic environment in the stomach helps to denature proteins and kill bacteria present in the food. The stomach also churns the food, mixing it with the digestive juices, to further break it down into smaller particles before it moves on to the small intestine for further digestion and absorption of nutrients.

Explanation
The statement is true because the food we eat contains various nutrients such as carbohydrates, proteins, and fats, which are broken down by our body to release energy. This energy is then utilized by our cells and organs to perform various functions such as growth, repair, and movement. Therefore, the food we consume is a source of energy for our body.

Explanation
The small intestine absorbs nutrients from the food we eat. It is specifically designed for absorption, with a large surface area and specialized structures called villi and microvilli. These structures increase the surface area even further, allowing for maximum absorption of nutrients such as carbohydrates, proteins, fats, vitamins, and minerals. The absorbed nutrients are then transported into the bloodstream and delivered to the cells throughout the body for energy and other functions.

Explanation
The rectum is the final section of the large intestine where stool is stored before being eliminated. When the rectum is full, it triggers the urge to have a bowel movement. The waste is then released through the anus, which is the opening at the end of the digestive tract. Therefore, the statement "The rectum releases the waste through the anus" is true.

Explanation
The given answer is true because the purpose of the brochure is clearly stated as being for families to learn about the digestive system together. This implies that the brochure was specifically created with the intention of educating families about the digestive system, making the statement true.

Explanation
The statement suggests that the person gained new knowledge or information by reading the brochure. Therefore, the correct answer is "True" as it aligns with the statement.