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WorksheetsWhat Is Going On Inside Me
Total questions: 31
Worksheet time: 31mins
Judy took some dead grass and soaked it in water for a few days. Then she looked at it under a microscope. She saw some tiny things moving around under the microscope. How could Judy tell whether what she was looking at were living things? Circle all of the following that could be used to decide whether the things Judy saw were living.
They were too small to see without a microscope
The number of them increased
They were floating in the water
They consumed smaller thinks floating in the water
Circle all the things that are true both of single celled organisms and cells that are part of a multi-celled organism.
Grow
Reproduce
Use Energy
Get their own food
Produce Waster
Which of these could be caused by a single-celled organism?
John left a bicycle out in the rain, and it began to rust.
Joe mixed baking soda and vinegar, and it started to bubble.
Mikayla left the milk out overnight, and it smelled sour the next day.
Jenny put sugar into some iced tea and stirred it until she could not see the sugar anymore.
Select three different places you could find free living single-celled organisms.
Yeast
Yogurt
Pond Water
Cheek
Describe how the functions of the digestive and circulatory system are connected.
The digestive system breaks down the food into molecules that can be used by the cells. The circulatory system moves the molecules from the villi to all the cells in the body.
The digestive system breaks down the food into molecules that can be used by the cells and the circulatory system breaks the food down further.
The circulatory system breaks down food and the digestive system transports it to the cells from the villi.
Where does diffusion happen in processing food?
when food breaks down into smaller pieces inside your mouth
when food molecules go into cells
when starch molecules are broken down into sugar molecules
when food is broken down inside the stomach
Which is an example of mechanical digestion?
Teeth chewing and breaking food into smaller pieces.
The cracker changing from salty taste to sugary taste.
The egg breaking down in the "stomach" environment
The yeast and sugar giving off gas.
What is the connection between oxygen and food?
Oxygen is used in the chemical reaction that releases energy from food.
Oxygen is needed for survival just like food is.
Oxygen dissolves in the blood to help it to carry food molecules around the body.
Oxygen is not used to help break food down into smaller particles.
Describe two pieces of evidence that support the claim that processing food is a chemical reaction.
In class, the yeast in the sugar water gave off gas. That was evidence of a chemical reaction when the yeast was using the sugar for food.
The change in the taste of the cracker from salty to sweet was evidence of a chemical reaction.
The teeth physically break the food into smaller pieces
Whitney went out for a run. After 20 minutes of running, she was hot and sweaty. What is the best biological explanation for this?
She was running harder than she usually does, so she worked up a sweat.
Her body needed to burn food more quickly to get energy to run hard.
Her body needed to use more heat energy to run hard.
Her heart had to pump faster to run hard, which caused her body temperature to rise.
Talia was studying the human body in science class and became interested in monitoring her pulse rate and breathing. She noticed her pulse and breathing increased during her dance practice. After practice, she stretched, drank lots of water, and relaxed. She noticed that her pulse and breathing returned to what it was before class. Why did this happen?
The water helped her cool off and get more energy.
Stretching helped her muscles relax and her breathing to calm down.
Her body returned to its normal pulse rate and breathing rate after her energy needs decreased.
Her body was strong enough to handle the increased rate of exercise.
Which of the following activities requires you to use energy?
Sleeping
Running
Basketball
Reading a Book
Where does the food nutrients you eat end up in your body?
In your heart
In your individual cells
In your blood stream
In the toilet
In chemistry you learned about open and closed systems. Which of the following is a true statement about the human body.
The human body is a closed system because matter and energy move from one part of the body to another.
The human body is a closed system because normally the organs, tissues, and cells are all internal to the body.
The human body is an open system because you need to take in air and food for the body to function.
The human body is an open system because the circulatory system moves food around from one part of the body to another.
The structure in the small intestine that absorbs the food nutrients is called
Alveoli
Villi
Cillia
Bacilli
What are the sacs in your lungs that fill up with air when you breathe in called?
Villi
Cilia
Alveoli
Bacili
The tube that connects your mouth to your stomach is called...
Esophagus
Intestine
Pancreas
Trachea
What is the function of the large intestine?
Water Absorption
Food nutrient Absorption
Breaking down food
Releasing chemicals
Which system is responsible for production of red blood cells?
Muscular
Skeletal
Digestive
Circulatory
Where does the digestive system hand off the food nutrients to after they are absorbed by the villi in the small intestine?
Straight to the cells
To the circulatory system.
To the large intestine.
To the liver.
Where does the oxygen get handed off to after it leaves the circulatory system?
Skeletal System
Straight to the heart
Directly to the cells
To the circulatory system
What system is responsible for sending and receiving signals/messages?
Skeletal
Muscle
Nervous
Digestive
Which part of the blood carries the food nutrients?
Plasma
Red Blood Cells
White Blood Cells
Platelets
Which part of the blood carries the oxygen?
Plasma
Red Blood Cells
White Blood Cells
Platelets
We breathe out ________ oxygen than we breathe in.
More
Less
We breathe out ______ Carbon Dioxide than we breathe in?
More
Less
Where does the CO2 we breathe out come from?
The chemical reactions between sugar and oxygen produces CO2 gas as a waste product.
It comes from the body.
It comes from the air we breathe in.
How does Oxygen enter our body.
Nose
Mouth
Ears
Eyes
What is food used for in the body?
Oxygen
Energy
Hormones
Breathing
Which of the following is an example of homeostasis in humans.
When we get hot our body sweats to cool us down.
When we get cold, our body shivers to warm us up.
The digestive system breaking down food.
The circulatory system carrying oxygen.
Why is the function of a cough or a sneeze?
To get bad stuff out of our body.
To get mucus everywhere to gross people out.
To get rid of extra carbon dioxide.
To let oxygen into the body.
