| A | B |
|---|
| When you breathe, your respiratory system is bringing your body | oxygen and removing carbon dioxide |
| The waste product formed during cellular respiration is | carbon dioxide |
| The waste product formed during photosynthesis is | oxygen |
| When you inhale, air passes through the following respiratory structures in which order? | mouth, throat, bronchial tubes, lungs |
| Which muscle contracts causing your thoracic cavity to expand? | diaphragm |
| The process of respiration allows the body to obtain | oxygen |
| Oxygen passes from your alveoli into your blood in your | lungs |
| The body system that functions to produce speech is the | respiratory |
| The respiratory system helps you produce sounds when | air moves across the vocal cords |
| In your cells, oxygen and sugars are used to release energy in a process called | cellular respiration |
| During cellular respiration, your cells use oxygen and sugars to release | energy |
| The digestive system breaks down foods, which supply necessary | energy and materials |
| Chewing food into smaller pieces with your teeth is a form of | mechanical digestion |
| What are the two types of changes that take place during digestion? | chemical and mechanical |
| Where in your digestive system does mechanical digestion occur? | mouth and stomach |
| List three of the functions of the digestive system. | sample answers: breaking food into small pieces; absorbing nutrients; absorbing water; processing waste products |
| How does your stomach process food? | Muscles mix and mash food. Acid breaks down food. |
| How is oxygen used by your body cells? | release energy. |
| The liquid waste removed from the body by the urinary system is called | urine |
| What purpose do the kidneys serve in the urinary system? | They filter liquid wastes from blood. |
| Kidneys maintain homeostasis in the body by regulating | water levels |
| Which of the following uses sweat glands to remove waste from the body? | skin |
| Kidneys are a part of the | urinary |
| The organ that helps maintain homeostasis by controlling the amount of water in your urine is called the | kidney |
| What are four ways the body disposes of waste products? | Through the urinary system (eliminates liquid waste), respiratory system (removes water vapor and waste gases), digestive system (removes solid waste from food), and skin (releases waste through sweat glands). |
| Which system removes liquid waste from the blood | urinary system |
| Which system removes water vapor and waste gases | respiratory system |
| Which system removes solid waste | digestive system |
| remove waste water | sweat glands |
| The looping tubes inside the kidneys that regulate the composition of blood are | nephrons |
| The ability to do work or to cause a change | energy |
| Muscle that performs involuntary movement and is found inside certain organs, such as the stomach | smooth muscle |
| The process by which an organism or cell maintains the internal conditions needed for health and functioning, regardless of outside conditions | homeostasis |
| A process in which cells use oxygen to release energy stored in sugars (glucose) | cellular respiration |
| A system that interacts with the environment and with other body systems to bring oxygen to the body and remove carbon dioxide | Respiratory system |
| A substance that an organism needs to live. | nutrient |
| The process of breaking down food into usable materials | digestion |
| The structures in the body that work together to transform the energy and materials in food into forms the body can use | digestive system |
| Wavelike contractions of smooth muscles in the organs of the digestive tract | peristalsis |
| A group of organs that filter waste from an organism’s blood and excrete it in a liquid called urine | urinary system |
| Liquid waste that is secreted by the kidneys | urine |
