7th Grade Science THIRD Six Weeks Mid- Assessment Pre-AP

  1. The main function of the circulatory system is to:
  1. Support and protect delicate organs such as the brain, lungs, and heart.

B. Supply oxygen from the lungs to the blood.

C. Pump oxygen and nutrients through the blood to every part of the

Body

D. Coordinate all actions and reactions of the body

  1. Which system provides oxygen to the blood?
  1. F. Circulatory system
  1. G. Muscular system
  1. H. Respiratory system
  1. J. Skeletal system
  1. The heart is part of the circulatory system. This system delivers oxygen and nutrients to all the cells in the body. What is the heart's role in this system?
  1. Oxygen and nutrients are carried to all the cells of the body by the heart.
  1. The heart is the source of oxygen and nutrients.
  1. Oxygen and nutrients pass from the heart into all the cells of the body.
  1. The heart provides the force to move oxygen and nutrients throughout the body.
  1. Blood is forced through the body by the ---

A. Brain

B. Lungs

C. Heart

D. Diaphragm

  1. What happens when you breathe in?
  1. Your diaphragm expands and your ribcage contracts
  1. Your diaphragm contracts and your ribcage expands
  1. Your diaphragm explodes and your ribcage contradicts
  1. Your diaphragm relaxes and your ribcage contracts
  1. Which system protects the body from drying out?
  1. Circulatory System
  2. Respiratory System
  3. Integumentary System
  4. Skeletal System
  1. What are the most basic building blocks of all organisms?

Cells

Blood

Organs

Tissues

  1. Which of the following objects would best be used to understand how the human heart works?
  2. Coffee filter
  3. Plastic bag
  4. Water pump
  5. Block
  1. AS the blood reaches the luings, what is removed from the blood?
  1. Oxygen
  2. Red blood cells
  3. White blood cells
  4. Carbon dioxide
  1. When you inhale, your luings:
  1. Inflate
  2. Deflate
  3. Turn purple
  4. Turn red
  1. Tiny air sacs, alveoli, in your lungs increase what?
  1. Water
  2. Blood
  3. Surface area
  4. Intake of carbon dioxide
  1. The excretory system is like a….
  1. Basketball it goes in and out of a hoop.
  2. Window screen, it lets air in and keeps bugs out.
  3. Book it gives you information.
  4. Hair dryer it drysevery thing and uses heat and air.

  1. System X in the Venn diagramis most likely the –

A. Muscular system

B. Circulatory system

C. Respiratory system

D. Skeletal system

  1. Which systems work together to provide oxygen to cells of the body?
  1. A and C
  1. A and D
  1. B and D
  1. C and D

Use the information and graphs below to help answer question #15.

Susan's assignment is to examine the effects of exercise on pulse rate and blood pressure. She started with a sitting pulse rate and blood pressure and continued to record data as she exercised for 5 minutes. She recorded the following:

  1. How would these data change if Susan now sat down for 5 minutes and then measured pulse rate and blood pressure?

A. Blood pressure and pulse rate would both decrease

B. Blood pressure would decrease while pulse rate would stay the same

C. Pulse rate would decrease while blood pressure would stay the same

D. Both blood pressure and pulse rate would stay the same as after 5 minutes of exercise

  1. Shown above is a graph of Max's heart rate during a 2 hour period of time. Use the graph to answer the next question. Based on the information in the graph, what was Max most likely doing from time A to time B?
  1. Watching TV
  1. Sitting
  1. Exercising
  1. Resting
  1. How do the heart and lungs work together to provide oxygen to cells?
  1. The heart supplies oxygen to the blood. The lungs deliver the blood throughout the body.
  1. The heart and lungs both filter oxygen from carbon dioxide. The heart and lungs deliver oxygen throughout the body.
  1. The lungs supply oxygen to the blood. The heart delivers the blood throughout the body.
  1. The heart holds the blood. The lungs pump the blood throughout the body.
  1. The integumentary system could best be described as:

A.The motherboard of a computer Everything attaches to the motherboard - the CPU, memory, hard drive, monitor, mouse, keyboard, add-on cards, even additional items like printers, scanners, and speakers. It passes information between the computer parts.

B.The plumbing system of a home – the system circulates the home flushing and collecting waste which it moves to the city street and away from the home

C.The brick exterior of a home – it protects the home from invaders, human and animal, and it insulates the home.

D.Heating/cooling system– if you have the temp set to 78 F. when the temperature deviates below the set point by a certain amount it will switch on the heat to bring the temp back up.

  1. Running is an activity that causes the cells in the muscular system to use oxygen at a faster rate. Which system responds by delivering more oxygen to these cells?

A. Respiratory

B. Circulatory

C. Skeletal

D. Muscular

  1. Why does a person's heart rate increase during exercise?

A. Less oxygen is needed

B. More oxygen is needed

C. Less carbon is needed

D. More carbon dioxide is needed

  1. What changes take place in the blood as it circulates throughout the body?

A.Blood returning to the heart has more oxygen.

B.Blood has fewer red blood cells as it returns to the heart.

C.Blood loses plasma as it circulates through the body.

D.Blood loses oxygen as it travels to all the body cells.

Use the pictures below for the next question.

  1. Which of the following statements can be supported by these pictures?
  1. Cells within multicellular organism look different.
  2. The organisms that are made up of these cells are identical.
  3. Cells within a multicellur organism all perform the same function.
  4. Cells are shaped differently so they can perform specialized functions.
  1. I and II only
  2. II and III only
  3. I and IV only
  4. I, II, III, and IV
  1. The walls of the human heart are made of specialized form of muscle tissue known as cardiac tissue. This cardiac, or heart, tissue contracts the chambers of the heart to cause rhythmical beating and blood circulation.

Tissues in the human body, such as cardiac tissue, are made up of

  1. Organs
  2. Nerves
  3. Blood
  4. Cells
  1. Your thyroid is a butterfly-shaped gland in your neck, just above your collarbone. It is one of your endocrine glands, which make hormones. The thyroid helps set your metabolism - how your body gets energy from the foods you eat. If your thyroid is not functioning properly what is an immediate response that you would notice
  1. Weight changes
  2. Increase in energy
  3. Loss of Memory
  4. Increase in muscle development
  1. Metabolic acidosis is a disturbance of the body’s acid and base balance, and can indicate that there is a serious problem with major organs in the digestive system.

Given the information above, what could be one of the body’s immediate responses to this internal condition:

  1. Fever
  2. Vomiting
  3. Loss of memory
  4. Blurred vision
  1. The hormones in the endocrine system are to the human body as a ______in the school is to the students.
  1. Principal
  2. Nurse
  3. Door
  4. Water Fountain
  1. The circulatory system is like
  1. An air filter in the school. The air filter removes bad dust in the air and lets the good air flow through the vents.
  2. The teachers in the school. The teachers follow the rules of the principal and inforce the school rules. Teachers make new ideas in students and keep them learning.
  3. The buses for the school. The buses transport students to and from school. To keep the school going. Without students we would not have school.
  4. The white board. The white board allows new information to be placed on it with different colors. The information can be easily erased.
  1. The ______in the respiratory system is to the villi in the digestive system.
  1. Esophagus
  2. Alveoli
  3. Trachea
  4. Vacuole
  1. The integumentary is most similar to which part of a cell?
  1. Cell membrane
  2. Nucleus
  3. Cytoplasm
  4. Vacuole
  1. The integumentary system is to fighting disease like the respiratory system is to ______.
  1. Taking in carbon dioxide
  2. Taking in water
  3. Providing oxygen to the blood
  4. Providing food nutrients to the blood.

  1. Which of the followings describes the limitations of the drawing but not of the clay model?

A. It does not represent the main parts of a cell.

B. It does not contain the correct number of nuclei.

C. It cannot represent a living cell, since a true cell is three-dimensional.

D. It cannot represent a living cell, since the cytoplasm should be in constant motion.

Structures in the human body work together to perform specific functions. The diagram below shows the organization of structures found in the human body.

  1. A picture of which of the following structures belongs in the box above?

A. cell

B. organ

C. organelle

D. tissue

The cell theory applies to all organisms, including the five shown below.

Drawings of Five Organisms

Snail Butterfly Shelf Fungi Euglena Cactus

  1. Which of the following statements describes how these organisms are an example of the cell theory?

A. The organisms have cells that lack a nucleus.

B. The organisms are made of one or more cells.

C. The cells of the organisms undergo photosynthesis.

D. The cells of the organisms are identical to each other.

  1. Which two systems work together to help the body perform the sense of touch?
  1. Integumentary & Skin
  2. Integumentary & Nervous
  3. Integumentary & Respiratory
  4. Nervous & Digestive