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Heterotrophic Nutrition, Excretion, and Respiration review
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Which substances are Metabolic Waste products
Carbon dioxide, water, urea Glucose, water, oxygen Carbon dioxide, water, sugar Oxygen, water, protein
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The adaptations that allow organisms to remove cellular wastes effectively vary according to
The color of the external surface Metabolic activities and the environment it inhabits Number of offspring Size of the organism and reproduction
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freshwater protozoans excrete ammonia and mineral salts by means of
Small vacuoles released through the membrane Small tubes leading from the cyroplasm to openings in the cell membrane Contraction of food vacuoles Diffusion through the cell membrane
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Which organism has excretory organs most similar to the nephrons in the kidneys
amoeba hydra earthworm grasshopper
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Which organism is paired correctly with the excretory adaptation used for removal of nitrogenous wastes Grasshopper-nephron Earthworm- nephridia Human – malphigian tubules Hydra - kidney
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Grasshoppers conserve water by excreting nitrogenous wastes in the form of
ammonia urea Uric acid Carbon dioxide
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Which human excretory organ breaks down red blood cells?
lung kidney skin liver
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Which structures filter and moisten air as it passes through the euman respiratory system?
Alveoli and cartilage rings Diaphragm and bronchioles Epiglottis and bronchi Cilia and mucous membranes
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Which structures in the nasal cavity remove some bacteria and dust from outside air before it enters the lungs? Ciliated mucous membranes Thin, moist alveoli Lymph nodes Rings of cartilage
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Humans breath more rapidly during exercise because the blood contains
More oxygen Decreased red blood cells Increased levels of CO2 Decreased bile
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In humans most gas exchange occurs between the
Excretory tubules and body cells Arteries and blood cells Alveoli and capillaries Skin and air
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Smoking may damage the respiratory system because?
Interfere with ciliary action of the trachea Trigger the release of bile by the liver Block the regulation of breathing Lower blood pressure in the alveoli
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A disorder of the digestive system that can cause a problem with the emulsification of fats
gallstones anorexia Constipation diarrhea
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Which structure creates a substance that aids in the mechanical breakdown of fats?
Gall bladder Pancreas Liver rectum
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This structure is found in the
Stomach Small intestine Esophagus Large intestine
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Pepsin and Trypsin are classified as
Sugars Carbohydrates Lipids proteins
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Pepsin operates best at a pH of 8. It is most likely found in the
Stomach Esophagus Small intestine Large intestine
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Into which parts of the human digestive system are digestive enzymes secreted?
Mouth, esophagus, stomach Stomach, small intestine, large intestine Mouth, stomach, small intestine Esophagus, stomach, large intestine
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Enzymes from the _____ enter the digestive tract at the small intestine.
Stomach Pancreas Gall bladder 2 and 3
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The nutrient that should provide the largest percentage of calories in a balanced diet is
Carbohydrates Water Protein Fatty acids
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