Worksheets25 Week Science Review
Total questions: 50
Worksheet time: 4hrs 6mins
The cells that deliver oxygen to other cells are
plasma
white blood cells
platelets
red blood cells
A cell is the smallest unit that can _______________________.
exist without a membrane
be seen with the naked eye
perform the basic activities of life
spontaneously generate
___________________________ is a group of similar cells that are organized to do a specific job.
a tissue
an organ
an organ system
an organism
Based on your knowledge of the human body, which of the following statements is a reasonable hypothesis?
If a person runs or walks, there will be no change in the heart rate.
If a person runs or walks, then his or her heart rate will increase.
If a person's heart rate increases, then he or she is most likely at rest.
If a person runs or walks, then his or her heart rate will decrease.
Your heart, veins, capillaries and arteries work together to
transport materials throughout your body
produce antigens
grow new cells on your skin's surface
produce pathogens
All of the organs in an organ system
function toward a common purpose
are made of the same tissue
are the same organ
divide and reproduce
Chewing food into smaller pieces with your teeth is a form of
peristalsis
exhalation
chemical digestion
mechanical digestion
What is the function of the respiratory system?
It regulates the amount of urine in the body.
It converts food to energy.
It obtains oxygen for the body.
It removes nutrients from the blood.
In your cells, oxygen and sugras are used to release energy in a process called
cellular exchange
cellular respiration
filtration
absorption
How does the digestive system function to provide energy for the body?
It changes energy from the sun into usable energy for the body.
It stores energy from other sources for later use by the body.
It breaks down food that supplies energy to the body.
It changes oxygen into food sources that release energy for the body.
The organ that helps maintain homeostasis by controlling the amount of water in your urine is called the
bladder
kidney
gallbladder
pancreas
Which of the following actions is form of chemical digestion?
Cutting food into smaller pieces with a knife
Chewing food with your teeth
Mashing food through peristalsis in your stomach
Food mixing with saliva
Which body system removes the liquid waste from the body?
urinary system
respiratory system
skeletal system
digestive system
Which body system removes water vapor and waste gases from the blood?
digestive system
respiratory system
skeletal system
urinary system
Which type of muscle is involuntary?
skeletal
cardiac
biceps
rough
The major purpose of the human skeletal system is to
support and protect the body
transport hormones
keep the body warm
cover and protect the body
Endocrine glands are located throughout the _____________.
digestive system
reproductive system
senses
body
Which of the following is true of the nervous system?
It uses enzymes to break down food.
It interacts with the environment through the five senses.
It transports hormones for the five senses.
It obtains oxygen from the environment outside the body.
The process of respiration allows the body to obtain
food
sunlight
oxygen
sugars
Which of the following is an organ?
muscle fiber
heart
marrow
spongy bone
The endocrine system uses feedback mechanisms to
maintain homeostasis
process images
sense the environment
provide oxygen
The highest level of organization in the body is the
tissue
cell
organism
organ system
Endocrine chemicals that are made in one location in the body and function in another location are called
feedback mechanisms
glands
hormones
sensory nerves
The immune system fights pathogens by using
peristalsis
antigens
ureters
antibodies
The many parts of the brain communicate with one another through connecting
vertebrae
sense
neurons
glands
A reaction to a change in your environment is caused when your sense organs perceive a
hormone
pathogen
neuron
stimulus
The systems in your body
perform identical functions
function best when they are separate from one another.
interact with one another to provide for the body's needs
change organs depending on need
The name of the stable internal condition that the body's systems work to maintain is
homeostasis
homeopathy
temperature
blood pressure
Which specialized cells help your body fight infection?
red blood cell
white blood cell
brain cell
an organelle
Different tissues working together to perform a particular function make up
an organ
an organism
a cell
an organelle
The reproductive system works to accomplish what goal?
the production of offspring
the process of digestion
the elimination of wastes
the destruction of white blood cells
What is the function of nutrients in the body?
They support and protect organ systems
They attack and destroy foreign invaders.
They monitor the outside environment.
They provide energy for the body to move and grow.
The skeletal and muscular systems work together to allow your body to
interpret a stimulus
send chemical messages
get nutrients from food
stand, walk and exercise
Which three body systems help to eliminate wastes from the body?
skeletal, muscular, nervous
respiratory, excretory, digestive
cells, glands and tissues
Where does oxygen/carbon dioxide exchange take place in the body?
in the lungs, in the air sacs called alveoli
In the bladder
In the large intestines, in the villi
in the red marrow of bones
Which of the following is a male reproductive organ?
testes
kidney
liver
ovary
A muscle is an example of a type of human ________________.
tissue
exoskeleton
skin
blood cell
The main function of the digestive system is to break down foods for nutrients.
True
False
Chewing food into smaller pieces with your teeth is a form of __________________________.
chemical digestion
mechanical digestion
peristalsis
respiration
The function of the villi in the small intestine is to increase the surface area for a nutrient absorption.
True
False
The main function of the circulatory system is to ___________________.
break down food
remove waste
transport materials throughout the body
When a person breathes, the lungs absorb _____________, which is used by cells to carry out the process of respiration.
nutrients
oxygen
waste
During cellular respiration, cells use oxygen and sugars to release energy.
True
False
A change in the environment that causes a response is known as a stimulus.
True
False
Kidneys maintain homeostasis in the body by regulating water level.
True
False
Pathogens enter the body through the skin through a cut and / or injury.
True
False
The human body develops active immunity to a pathogen by producing specific antibodies.
True
False
Organs begin to develop in humans after fertilization and before birth.
False
True
When blood travels through the heart, it starts in the right atrium, then it goes to the right ventricle. Then it is pumped to the lungs, where the blood exchanges oxygen and carbon dioxide. Next it goes to the left atrium. Then it goes to the left ventricle. From the left ventricle, it’s pumped to the rest of the body through the aorta (artery).
False
True
The ___________________ system coordinates movement in the body.
digestive
excretory
sound
nervous
