Which of the following tables correctly matches the organs to their roles in maintaining homeostasis?
A.
Organ Role
Heart pumps blood to various parts of the body
Lung provides oxygen for the blood
Artery transfers oxygen-rich blood to various parts of the body
Vein transfers carbon dioxide-rich blood from various body parts to the heart
B.
Organ Role
Heart transfers carbon dioxide-rich blood from various body parts to the heart
Lung transfers oxygen-rich blood to various parts of the body
Artery provides oxygen for the blood
Vein pumps blood to various parts of the body
C.
Organ Role
Heart provides oxygen for the blood
Lung transfers carbon dioxide-rich blood from various body parts to the heart
Artery pumps blood to various parts of the body
Vein transfers oxygen-rich blood to various parts of the body
D.
Organ Role
Heart provides oxygen for the blood
Lung transfers oxygen-rich blood to various parts of the body
Artery transfers carbon dioxide-rich blood from various body parts to the heart
Vein pumps blood to various parts of the body
The correct answer is A.
Multiple Choice Question
Which of the following tables correctly pairs the system with its function in the human body?
A.
System Function
Skeletal removes carbon dioxide while supplying the blood with oxygen
Reproductive protects internal organs and assists in locomotion
Respiratory secretes hormones into the blood that control growth, metabolism, and stress response
Endocrine responsible for the production of offspring
Digestive maintains water and chemical balance by eliminating waste products
Excretory obtains nutrients for the body by breaking down food, absorbing water, and eliminating waste
B.
System Function
Skeletal responsible for the production of offspring
Reproductive secretes hormones into the blood that control growth, metabolism, and stress response
Respiratory obtains nutrients for the body by breaking down food, absorbing water, and eliminating waste
Endocrine removes carbon dioxide while supplying the blood with oxygen
Digestive protects internal organs and assists in locomotion
Excretory maintains water and chemical balance by eliminating waste products
C.
System Function
Skeletal secretes hormones into the blood that control growth, metabolism, and stress response
Reproductive maintains water and chemical balance by eliminating waste products
Respiratory responsible for the production of offspring
Endocrine protects internal organs and assists in locomotion
Digestive obtains nutrients for the body by breaking down food, absorbing water, and eliminating waste
Excretory removes carbon dioxide while supplying the blood with oxygen
D.
System Function
Skeletal protects internal organs and assists in locomotion
Reproductive responsible for the production of offspring
Respiratory removes carbon dioxide while supplying the blood with oxygen
Endocrine secretes hormones into the blood that control growth, metabolism, and stress response
Digestive obtains nutrients for the body by breaking down food, absorbing water, and eliminating waste
Excretory maintains water and chemical balance by eliminating waste products
The correct answer is D.
System Function
Skeletal protects internal organs and assists in locomotion
Reproductive responsible for the production of offspring
Respiratory removes carbon dioxide while supplying the blood with oxygen
Endocrine secretes hormones into the blood that control growth, metabolism, and stress response
Digestive obtains nutrients for the body by breaking down food, absorbing water, and eliminating waste
Excretory maintains water and chemical balance by eliminating waste products
Mitchell created a diagram to describe the levels of organization within a multicellular organism, in order from smallest to largest.
Which mistake did Mitchell make in his diagram?
A.
Mitchell did not correctly describe tissues.
B.
Mitchell reversed the order of tissues and organs.
C.
Mitchell did not correctly describe organ systems.
D.
Mitchell reversed the order of organ systems and organisms.
The answer is C. Mitchell did not correctly describe organ systems.
Read the passage about an athlete.
When an athlete's body temperature begins to climb, blood vessels in the skin dilate. As a result, the athlete's face turns red because warm, oxygenated blood moves to the surface of the skin. This process helps to reduce overall body temperature and prevent overheating.
Which organ system most likely helps to keep an athlete from overheating?
A.
the digestive system
B.
the circulatory system
C.
the respiratory system
D.
the reproductive system
The correct answer is B. the circulatory system. The circulatory system plays a crucial role in regulating body temperature by controlling blood flow and distributing heat throughout the body. In the case of an athlete, the dilation of blood vessels in the skin is a response of the circulatory system to help dissipate heat and prevent overheating.
Blood consists of many different types of cells. These cells work together to keep a person's blood healthy. Which of the following BEST classifies blood?
A.
organ
B.
tissue
C.
organism
D.
organ system
The best classification for blood is B. tissue. Blood consists of different types of cells, such as red blood cells, white blood cells, and platelets, that work together to maintain the health and functioning of the blood. While blood is a vital component of the circulatory system, it is not considered an organ, organ system, or organism.
Which of the following is an example of an organ system?
A.
a human bladder storing waste for removal from the body
B.
a plant's roots absorbing water and minerals from soil
C.
the living material that lines the inside of a cheek
D.
a heart, arteries, and veins all working together
The correct answer is D. a heart, arteries, and veins all working together. An organ system consists of multiple organs that work together to perform a specific set of functions. In this case, the heart, arteries, and veins all work together as part of the cardiovascular system to circulate blood throughout the body. The other options mentioned are individual organs or tissues, not organ systems.
Which two systems interact most to supply the body with nutrients?
A.
The endocrine system produces hormones that regulate hunger, and the muscular system assists the body in moving food into the stomach.
B.
The digestive system breaks down the food to make it available for absorption, and the circulatory system transports the nutrients to parts of the body.
C.
The nervous system stimulates the appetite, and the excretory system removes waste that was not absorbed by the body.
D.
The skeletal system absorbs all the nutrients needed for the body, and the integumentary system removes excess liquid from food.
The correct answer is B.
The digestive system breaks down the food to make it available for absorption, and the circulatory system transports the nutrients to parts of the body. The digestive system processes and breaks down food into nutrients that can be absorbed by the body. The circulatory system then transports these nutrients, along with oxygen, to different parts of the body where they are needed for energy and various biological processes.
Which organelle in a plant cell captures radiant energy from the Sun?
A.
chloroplast
B.
mitochondrion
C.
ribosome
D.
nucleus
The correct answer is A. chloroplast. The chloroplast is the organelle responsible for capturing radiant energy from the sun during the process of photosynthesis. This radiant energy is then converted into chemical energy in the form of glucose, which the plant uses for growth and development.
The graph below shows how the respiratory system changes as a person goes from resting to running to walking to resting again. The respiration rate is the number of breaths a person takes per minute.
Based on the graph, which of the following is a function of the respiratory system?
A.
to deliver oxygen to cells for cellular respiration at different rates so that different amounts of energy can be made when needed
B.
to detect changes in the outside world through nerve impulses and send these impulses throughout the body
C.
to increase the breathing rate during heavy activity so that more carbon dioxide can be absorbed by respiratory cells
D.
to decrease a person's heartbeat during heavy activity and decrease the flow of