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WorksheetsHB: Digestion and Excretion Review
Total questions: 20
Worksheet time: 20mins
Which types of nutrients provides most of the energy that we need? (Choose all that apply)
Vitamins
Carbohydrates
Minerals
Fats
Energy from nutrients is measured in...
Milliliters
Watts
Calories
ATP
During digestion, proteins are broken down into...
Monosaccharides, like glucose
Fatty acids and glycerol
Vitamins & Minerals
Peptides, and then amino acids
A protease like pepsin breaks down _________ and a lipase like human pancreatic lipase breaks down _________.
carbohydrates; lipids
lipids; proteins
protein; carbohydrates
protein; lipids
What is the correct order of urine flow through the urinary tract?
Urethra, kidney, bladder, ureter
Urethra, bladder, ureter, kidney
Kidney, ureter, bladder, urethra
Kidney, urethra, bladder, ureter
What substance would we NOT expect to find in urine?
Red blood cells
Water
Urea
Salt
Amylase breaks down ...
Protein into peptides
Starch into glucose
DNA into nucleic acids
Lipids into fatty acids & glycerol
What are the stages of digestion in order?
Ingestion, absorption, digestion, elimination
Digestion, absorption, ingestion, elimination
Ingestion, digestion, absorption, elimination
Absorption, digestion, ingestion, elimination
After chewing a starchy cracker for about three minutes, how will it taste and why?
Starchy, because starch digestion only occurs in the stomach.
Sugary, because starch digestion only occurs in the small intestine.
Sugary, because starch digestion begins in the mouth.
Bitter, because starch digestion begins in the mouth.
Food moves down the esophagus by:
Gravity
Peristalsis
Sphincter contraction
Lacteal contration
Why can cirrhosis of the liver, which causes the loss of liver function, be dangerous?
The liver loses its ability to convert the very toxic ammonia to urea.
The liver loses its ability to convert the very toxic ammonia to uric acid.
The liver loses its ability to filter urine from the blood.
The liver loses its ability to convert the very toxic urea to urine.
By the end of the digestive process...
Starch has been changed into simple sugars
Fats have been changed into fatty acids and glycerol
Proteins have been changed into amino acids
All of the above
This structure provides a large surface area for absorption in the small intestine.
Villi
Gallbladder
Amylase
Chyme
Which of the following best describes the acidity/basicity of pancreatic juice?
Pancreatic juice needs to be acidic to neutralize the basic solution from the stomach.
Pancreatic juice needs to be basic to neutralize the acidic solution from the stomach.
Pancreatic juice needs to be basic to mix well with the basic solution from the stomach.
Pancreatic juice needs to be acidic to mix well with the acidic solution from the stomach.
Feces are made of undigested remains of food, including... (choose all that apply)
Cellulose/fiber
Bacteria
Glucose
Mucin
The duodenum is part of the...
Esophagus
Stomach
Small intestine
Large intestine
Which of the following organs are involved in excretion? (Choose all that apply)
Skin
Lungs
Liver
Kidneys
If your urine is clear, what can you infer?
You are dehydrated, and your kidneys are trying to conserve water.
You are well hydrated, and your kidneys are trying to conserve water.
You are dehydrated, and your kidneys are trying to filter out excess water.
You are well hydrated, and your kidneys are trying to filter out excess water.
What is the name of the filtering unit of the kidney?
Neuron
Urethra
Nephron
Duodenum
The kidneys are responsible for filtering blood. How does this blood enter the kidney?
Through the renal artery
Through the renal vein
Through the pulmonary artery
Through the pulmonary vein
