Science 8 First Quarter Examination

Which part of the digestive system and enzymes will first chemically break down in food intake?

• Large Intestine – Protease

• Mouth – Amylase

• Stomach – Pepsin

• Small Intestine – Lipase

Which organ correctly fills the blank in the flow chart?

• Ascending colon

• Gallbladder

• Large Intestine

• Pancreas

Which of the following correctly matches the part of the digestive system with its function in helping Maria digest her meal?

• Mouth – Breaks down fats using bile

• Large intestine – Produces enzymes that digest protein

• Small intestine – Absorbs nutrients into the bloodstream

• Stomach – Begins the digestion of carbohydrates using amylase

Which digestive process is most affected by her condition?

• Chemical digestion

• Mechanical digestion

• Nutrient Absorption

• Waste Elimination

Which sequence shows the correct order of these processes?

• Elimination → Digestion → Secretion

• Absorption → Digestion → Mechanical processing

• Mechanical processing → Digestion → Absorption

• Secretion → Elimination → Mechanical processing

Which patient likely has a more serious issue related to nutrient use, and why?

• Patient A, because a lack of saliva stops all digestion

• Patient A, because secretion of enzymes happens only in the mouth

• Patient B, because poor absorption prevents nutrients from entering the body

• Patient B, because mechanical processing is important in nutrient digestive absorption

Which parts of the digestive system are responsible for the final stage of waste excretion?

• Anus and rectum

• Kidneys and bladder

• Esophagus and stomach

• Small intestine and liver

At which stage does chemical digestion primarily occur to break down food into smaller molecules?

• Mouth, where chewing takes place

• Large intestine, where water is absorbed

• Small intestine, where waste is eliminated

• Stomach, where gastric juices act on food

How does the circulatory system help the digestive system at this stage?

• It breaks food down into proteins and sugars

• It filters waste products directly from the food

• It helps chew and swallow the food more efficiently

• It transports the absorbed nutrients to the cells throughout the body

Which body system controls these muscle movements?

• Circulatory system

• Nervous system

• Respiratory system

• Skeletal system