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Grade 11 Biology Exam Review 2025
Certified Q&A
Chemical digestion - correct-answer-The chemical breakdown of food into smaller
pieces, such as breaking down the large molecules of carbs, fats and proteins to
produce smaller molecules during hydrolysis
Ingestion - correct-answer-The act of eating or drinking
Absorption - correct-answer-Occurs in the small intestine, where the cells absorb
small molecules such as amino acids and simple sugars
Elimination - correct-answer-The process of removing from the digestive tract any
undigested materials
Organs of the digestion system - correct-answer-1) The mouth
2) The pharynx
3) The esophagus
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4) The stomach
5) The small intestine
6) The large intestine
7) Accessory organs
What are the accessory organs of the digestion system? - correct-answer-1) The
salivary glands
2) The pancreas
3) The liver
4) The gallbladder
Bile's job in the digestion system - correct-answer-Bile is a yellow liquid produced
outside of the small intestine by the body's liver. It helps prepare fats for
hydrolysis
Mucus's job in the digestion system - correct-answer-Mucus is aa sticky substance
that coats and lubricates the food so that it can slide down the tube without
harming the tissues that line the tube
Organs of the respiratory system - correct-answer-1) Trachea
2) Esophagus
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3) Nose/Mouth
4) Lungs
5) Heart
6) Diaphragm
Organs of the circulatory system - correct-answer-1) The heart and all chambers
and parts
2) Veins
3) Capillaries
4) Arteries
5) Lungs
What are the two components of blood? - correct-answer-1) 55% Plasma
2) 45% Cellular Components
What does plasma help control in your body? - correct-answer-Body temperature
Red blood cells - correct-answer-Cells that carry oxygen from the lungs to all the
tissues of the body
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What is the lifespan of red blood cells? - correct-answer-100-120 days
White blood cells - correct-answer-Cells that guar against infection, fight parasites
and attack bacteria
Platelets - correct-answer-Cell fragments that originate when the cytoplasm of
certain bone marrow cells divides. They help repair cuts.
Disorders of the digestion shstem - correct-answer-1) Gastroesophageal reflux
disease
2) Ulcer
3) Inflammatory bowel disease
4) Constipation
5) Diarrhea
Open Circulatory System - correct-answer-A system in which blood is not entirely
contained within blood vessels. (Example = Grasshopper)
Grade 11 Biology Exam Review 2025
Certified Q&A
Chemical digestion - correct-answer-The chemical breakdown of food into smaller
pieces, such as breaking down the large molecules of carbs, fats and proteins to
produce smaller molecules during hydrolysis
Ingestion - correct-answer-The act of eating or drinking
Absorption - correct-answer-Occurs in the small intestine, where the cells absorb
small molecules such as amino acids and simple sugars
Elimination - correct-answer-The process of removing from the digestive tract any
undigested materials
Organs of the digestion system - correct-answer-1) The mouth
2) The pharynx
3) The esophagus
,2|Page
4) The stomach
5) The small intestine
6) The large intestine
7) Accessory organs
What are the accessory organs of the digestion system? - correct-answer-1) The
salivary glands
2) The pancreas
3) The liver
4) The gallbladder
Bile's job in the digestion system - correct-answer-Bile is a yellow liquid produced
outside of the small intestine by the body's liver. It helps prepare fats for
hydrolysis
Mucus's job in the digestion system - correct-answer-Mucus is aa sticky substance
that coats and lubricates the food so that it can slide down the tube without
harming the tissues that line the tube
Organs of the respiratory system - correct-answer-1) Trachea
2) Esophagus
,3|Page
3) Nose/Mouth
4) Lungs
5) Heart
6) Diaphragm
Organs of the circulatory system - correct-answer-1) The heart and all chambers
and parts
2) Veins
3) Capillaries
4) Arteries
5) Lungs
What are the two components of blood? - correct-answer-1) 55% Plasma
2) 45% Cellular Components
What does plasma help control in your body? - correct-answer-Body temperature
Red blood cells - correct-answer-Cells that carry oxygen from the lungs to all the
tissues of the body
, 4|Page
What is the lifespan of red blood cells? - correct-answer-100-120 days
White blood cells - correct-answer-Cells that guar against infection, fight parasites
and attack bacteria
Platelets - correct-answer-Cell fragments that originate when the cytoplasm of
certain bone marrow cells divides. They help repair cuts.
Disorders of the digestion shstem - correct-answer-1) Gastroesophageal reflux
disease
2) Ulcer
3) Inflammatory bowel disease
4) Constipation
5) Diarrhea
Open Circulatory System - correct-answer-A system in which blood is not entirely
contained within blood vessels. (Example = Grasshopper)
