WorksheetsDIGESTIVE SYSTM REVIEW PART 2
Total questions: 25
Worksheet time: 15mins
Why does blood flow increase to the digestive organs after eating a heavy meal?
Because the circulatory system delivers nutrients from the digestive tract to the rest of the body.
Because the digestive system creates red blood cells to support digestion.
Because the circulatory system stores nutrients until the body needs them.
Because the digestive system directs blood to muscles for movement.
Why must large molecules like starch, proteins, and fats be broken down into smaller units during digestion?
To make you breathe faster after meals.
So they can be saved in the liver as energy.
So the lungs can eliminate them as waste.
So they can be absorbed through the intestinal lining into the bloodstream.
What is the role of the stomach and small intestine in processing food?
Both act as storage areas for waste before it exits the body.
The stomach starts digestion, and the small intestine takes in nutrients.
Both release bile to break down fatty foods.
The small intestine cleans harmful substances before food enters the stomach.
What is the primary function of enzymes in the digestive process?
To transport oxygen in the blood.
To speed up the breakdown of food into smaller molecules.
To eliminate waste products from the body.
To store energy for later use.
How does the pancreas contribute to digestion?
By storing undigested food until elimination.
By producing bile to emulsify fats.
By secreting digestive enzymes into the small intestine.
By absorbing nutrients from digested food.
What role do villi play in the small intestine?
They help in the mechanical breakdown of food.
They transport waste to the large intestine.
They increase the surface area for nutrient absorption.
They produce digestive enzymes.
Mark the systems that are involved (implicados) in the NUTRITION
Digestive, Circulatory, Excretory, Respiratory
Digestive, Circulatory and Respiratory
Digestive, Circulatory and Excretory
Digestive, Circulatory, Excretory, Respiratory, Endocrine and Nervous
The gastric juice contains one enzyme calls....
amylase
hydrochloric acid
pepsin
none is correct
In the stomach which type of food starts to be digested
Glucids
Proteins
Lipids
Nucleic acids
In the small intestine which type of food starts to be digested
Glucids
Proteins
Lipids
Nucleic acids
After digestion in the stomach, the product that goes to the intestine is called...
food bolus
chyle
chyme
faeces
Which is the function of the liver
digestion of lipids
emulsification of lipìds
digestion of lipids and destruction of toxic substances
emulsification of lipids and destruction of toxic substances
After digestion of glucids, we obtain the following products
starch
amino acids
glucose
glycerol
After digestion of proteins, we obtain the following products
fatty acids
amino acids
glucose
glycerol
After digestion of lipids, we obtain the following products
fatty acids
amino acids
glucose
starch
What do enzymes do?
Build things up or break them down
Help filter waste from the body
Create environments where food can be eaten
Add and remove water
What does the image reveal about how enzymes work on specific molecules?
It shows the enzyme breaking apart into two sections.
It shows that enzymes only bind to certain molecules that match their shape.
It shows enzymes working the same on all nutrients.
It shows the food reshaping itself to match the enzyme.
A student claims that papain can replace all the enzymes in the human digestive system. What’s the best response?
That’s not accurate—papain can only digest proteins, not fats or carbs.
That’s true—every enzyme breaks down all types of food.
Papain works faster, so it should replace human enzymes.
That’s correct—papain functions in any pH environment.
How does peristalsis help food travel through the digestive system?
By releasing enzymes into the intestine.
By squeezing muscles in waves to move food along.
By taking water out of waste to make it solid.
By expanding the stomach to fit more food.
How do the liver and gallbladder work together in digestion?
They both make enzymes for digesting sugars.
The liver sends toxins to the gallbladder to be removed.
The liver makes bile, and the gallbladder stores it until it's needed.
The liver stores the bile made by the gallbladder.
The ______________ is the part of the large intestine that connects to the small intestine.
cecum
ileum
sigmoid colon
ascending colon
The section of the large intestine for storing fecal material before elimination and can cause constipation.
Sigmoid colon
Transverse colon
Ascending colon
jejunum
In what ways does the liver support digestion and help keep the body’s internal environment stable?
It breaks food into pieces and removes oxygen from the blood.
It breaks food into pieces and removes oxygen from the blood.
It sends enzymes to the stomach and produces hormones.
It digests food directly and stores enzymes inside the intestines.
It makes bile to break down fats and processes nutrients coming from the intestines.
Why does the pancreas play a key role in both digestion and blood sugar control?
It cleans the blood and keeps extra glucose for later use.
It creates bile to break down fats and manages blood pressure.
It stores food nutrients and helps digest fiber in the stomach.
It produces enzymes for digestion and releases insulin to manage sugar levels.
This is a substance in your stomach that is very strong and helps to chemically break down your food.
Hydorchloric acid
Acetone
Sodium Bicarbonate
Dihydrogen Monoxide
