1.
What does it take to keep our mind alert?
Correct Answer
A. Energy
Explanation
To keep your mind alert, it requires energy. Energy is necessary for the brain to function properly and carry out cognitive processes such as thinking, analyzing, and problem-solving. Without sufficient energy, the brain may become fatigued and unable to perform at its optimal level, resulting in decreased alertness and mental clarity. Therefore, energy is crucial for maintaining a sharp and alert mind.
2.
Nutrients are substances that are found in food, and that help your body grow and develop.
Correct Answer
A. True
Explanation
Nutrients are indeed substances that are found in food and play a vital role in the growth and development of our bodies. They provide energy, support bodily functions, and help in the repair and maintenance of tissues. Therefore, the statement "Nutrients are substances that are found in food, and that help your body grow and develop" is true.
3.
Your skin, nails, hair, muscles, internal organs, and even your brain contain no protein.
Correct Answer
B. False
Explanation
This statement is false. Protein is an essential component of all the mentioned body parts. Skin, nails, hair, muscles, internal organs, and even the brain all contain protein. Protein is necessary for the structure, function, and repair of these body parts.
4.
What is the other name for Vitamin D?
Correct Answer
C. The sunshine vitamin
Explanation
Vitamin D is sometimes called the "sunshine vitamin" because our bodies can produce it when our skin is exposed to sunlight. Sunlight triggers a chemical reaction in the skin that converts a form of cholesterol into vitamin D. This vitamin plays a crucial role in maintaining healthy bones and teeth, supporting immune function, and regulating mood. It is called the "sunshine vitamin" because sunlight is the primary source of vitamin D for most people.
5.
What is the ability to do work called?
Correct Answer
D. Energy
Explanation
Energy is the ability to do work. It is the capacity of a system to perform tasks or make things happen. It can exist in various forms such as kinetic, potential, thermal, chemical, or electrical energy. Energy is essential for all living organisms to carry out their daily activities and for the functioning of various systems in the body. It is obtained through the consumption of food and is converted into usable energy through processes like digestion and metabolism. Without energy, no work can be done, and life processes would cease to exist.
6.
What is the name of the parts of the body that work together to change food into a form the body can use?
Correct Answer
A. Digestive system
Explanation
The digestive system is responsible for breaking down food into smaller molecules that can be absorbed and used by the body. It consists of various organs such as the mouth, esophagus, stomach, small intestine, and large intestine, as well as accessory organs like the liver, gallbladder, and pancreas. The digestive system works together with digestive juices, which contain enzymes that aid in the breakdown of food. The esophagus is a part of the digestive system that helps transport food from the mouth to the stomach. The nervous system, although important for regulating digestion, does not directly change food into a usable form.
7.
What are the substances that are found in food that help your body grow and develop?
Correct Answer
E. Nutrients
Explanation
Nutrients are substances found in food that are essential for the growth and development of the body. They provide energy, support metabolism, and help in the maintenance and repair of tissues. Nutrients include carbohydrates, proteins, fats, vitamins, and minerals. While protein is also a nutrient, the question is asking for the general term for substances found in food that aid in growth and development, which is nutrients. Fiber and calcium are specific types of nutrients, but the correct answer encompasses all types of nutrients.
8.
Food that contains sugar and starch. Most of your energy comes from this kind of food. Foods with natural sugar or starch in them are the best source of?
Correct Answer
C. Carbohydrates
Explanation
Carbohydrates are the macronutrients primarily responsible for providing energy to the body. They are found in foods that contain sugars and starches. While cookies contain carbohydrates, they often come with added sugars and fats, which are not the healthiest sources. Natural sugars and starches, like those found in fruits, vegetables, and whole grains, are the best sources of carbohydrates. Vitamins, on the other hand, are micronutrients and do not provide energy.
9.
Which of the following organ(s) form a part of the human digestive system?
Correct Answer(s)
A. EsopHagus
B. Small intestine
C. Large intestine
F. Stomach
G. Anus
Explanation
The organs that form a part of the human digestive system are the esophagus, small intestine, large intestine, stomach and anus. These organs work together to break down food and absorb nutrients. The esophagus is responsible for transporting food from the mouth to the stomach. The stomach then further breaks down the food with the help of digestive enzymes and acids. The small intestine is where most of the digestion and absorption of nutrients takes place. Finally, the large intestine absorbs water and electrolytes from the remaining undigested food before it is eliminated through the anus.
10.
How many servings from the fruit group should you eat daily?
Correct Answer
B. 2-4 servings
Explanation
The recommended daily servings from the fruit group is 2-4 servings. This is because fruits are a good source of essential vitamins, minerals, and dietary fiber. Consuming 2-4 servings of fruits daily helps to maintain a balanced diet and provides the body with necessary nutrients. It is important to include a variety of fruits in one's diet to ensure a wide range of nutrients are obtained.
11.
How many chambers are in the heart?
Correct Answer
C. 4
Explanation
The heart has four chambers, which are the left and right atria, and the left and right ventricles. The atria receive blood from the body and lungs, while the ventricles pump blood out to the body and lungs. The separation of the chambers ensures efficient blood flow and prevents mixing of oxygenated and deoxygenated blood. Therefore, the correct answer is 4.
12.
What is physical health?
Correct Answer
A. How fit you are and how healthy your body is.
Explanation
The correct answer is "How fit you are and how healthy your body is." This option accurately defines physical health as the overall state of one's body in terms of fitness and well-being. It encompasses factors such as strength, endurance, flexibility, and the absence of illness or disease. This definition aligns with the commonly understood concept of physical health and its importance in maintaining an active and fulfilling lifestyle.
13.
Breathing in what causes severe asthma reactions in children?
Correct Answer
A. Secondhand smoke
Explanation
Children with asthma often experience more severe reactions when they breathe in secondhand smoke. Secondhand smoke contains harmful chemicals and irritants that can trigger asthma symptoms and exacerbate existing respiratory issues. The smoke can irritate the airways, causing inflammation and constriction, leading to difficulty breathing, wheezing, coughing, and increased mucus production. Therefore, exposure to secondhand smoke should be avoided to protect the health and well-being of children with asthma.
14.
What is the thick, oily, dark, liquid that forms when tobacco burns?
Correct Answer
A. Tar
Explanation
Tar is the correct answer because it is a thick, oily, dark liquid that is produced when tobacco burns. Tar is a byproduct of the combustion process and is known for its sticky and toxic properties. It can accumulate in the lungs of smokers and has been linked to various health problems, including lung cancer and respiratory issues.
15.
What are white blood cells that attack pathogens called?
Correct Answer
B. LympHocytes
Explanation
Lymphocytes are a type of white blood cells that play a crucial role in the immune system. They are responsible for identifying and attacking pathogens, such as bacteria and viruses, to protect the body from infections. Neurocytes are not white blood cells and do not have a role in fighting pathogens. Carcinogens are substances that can cause cancer and are not related to white blood cells or immune response. Therefore, the correct answer is lymphocytes.