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AP Biology Unit 8F: Human Physiology: Digestion, Excretion & Homeostasis — practice questions

Explore 55 free Unit 8F: Human Physiology: Digestion, Excretion & Homeostasis questions in AP Biology Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Unit 8F: Human Physiology: Digestion, Excretion & Homeostasis questions and exercises with answers

Showing questions 1–30 of 55.

NEET · Biology · Digestive Enzymes — Gap FillRead the answer and worked solution →NEET · Biology · Digestion Enzymes ↔ SourceRead the answer and worked solution →NEET · Biology · Path of Food Through the GutRead the answer and worked solution →In a plant, water and dissolved minerals absorbed by the roots are carried to the leaves mainly through which conducting tissue?Read the answer and worked solution →Dry seeds swell up after absorbing water, which lets the seedling push out of the soil. The type of diffusion responsible for this swelling is termed what?Read the answer and worked solution →Water moving deeper into the root entirely through the cell walls and intercellular spaces, without ever crossing a cell membrane, follows which pathway?Read the answer and worked solution →In the symplast pathway, water passes from one root cell to the next through fine cytoplasmic connections. These connections are called what?Read the answer and worked solution →The evaporation of water from the aerial parts of a plant, mainly through the stomata of leaves, is known as which process?Read the answer and worked solution →As water evaporates from the leaves, a suction force develops that draws more water up the xylem column from the roots. This force is called what?Read the answer and worked solution →During a bacterial or viral infection, one type of agranulocyte responds by producing antibodies. Which white blood cell is this?Read the answer and worked solution →The largest of the leucocytes, amoeboid in shape and able to engulf bacteria by phagocytosis, is which cell type?Read the answer and worked solution →Small, colourless blood cells without a nucleus that gather at an injury site to form a clot and stop blood loss are called what?Read the answer and worked solution →Among all the blood vessels, which type carries deoxygenated blood even though its general class usually carries oxygenated blood?Read the answer and worked solution →A blood vessel that is thin-walled, non-elastic, carries blood toward the heart and contains internal valves is best identified as which of the following?Read the answer and worked solution →The valve located between the left auricle and the left ventricle has two cusps. By what name is this valve also known?Read the answer and worked solution →One complete cardiac cycle lasts about 0.8 second. Within this cycle, the contraction of the ventricles (ventricular systole) takes approximately how long?Read the answer and worked solution →In a healthy resting adult, blood pressure is normally expressed as 120 mm/80 mm Hg. The figure 80 mm Hg in this reading represents which pressure?Read the answer and worked solution →True or false — biologyRead the answer and worked solution →Spot the mistakeRead the answer and worked solution →The functional unit of the kidney is theRead the answer and worked solution →Each nephron has which two parts?Read the answer and worked solution →The glomerulus is a tuft of capillaries formed by theRead the answer and worked solution →The glomerulus together with Bowman's capsule is called theRead the answer and worked solution →The glomerular filtration rate in a healthy individual is aboutRead the answer and worked solution →About 180 litres of filtrate forms daily but only 1.5 litres of urine is released. This means roughlyRead the answer and worked solution →A fall in GFR activates the JG cells to releaseRead the answer and worked solution →Approximately how many nephrons does each human kidney contain?Read the answer and worked solution →Birds, reptiles, and insects are classified as URICOTELIC because they primarily excrete:Read the answer and worked solution →The functional unit of the human kidney is called the:Read the answer and worked solution →Most of the GLUCOSE in the glomerular filtrate is reabsorbed in the:Read the answer and worked solution →

Worked practice questions

NEET · Biology · Digestive Enzymes — Gap Fill

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Missing parts
  1. Answer
    starch
    Choices
    1. starch
    2. protein
    3. fat
    4. fibre
  2. Answer
    protein
    Choices
    1. starch
    2. protein
    3. fat
    4. fibre
Complete the statement
Salivary amylase digests {0}. Pepsin in the stomach digests {1}.
Instructions
Fill the substrate each enzyme acts on.

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NEET · Biology · Digestion Enzymes ↔ Source

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Matching pairs
  1. Left
    Salivary amylase (ptyalin)
    Right
    Salivary glands
  2. Left
    Pepsin
    Right
    Gastric glands (stomach)
  3. Left
    Trypsin
    Right
    Pancreatic juice
Instructions
Match each digestive enzyme to where it is produced.

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NEET · Biology · Path of Food Through the Gut

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Steps
  1. Mouth (buccal cavity)
  2. Oesophagus
  3. Stomach
  4. Small Intestine
  5. Large Intestine
  6. Rectum
Instructions
Tap each digestive-tract segment in the correct order.

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More Biology topics

Unit 5C: Non-Mendelian Genetics & Population TransmissionUnit 2B: Membrane Transport, Tonicity & Cell SizeUnit 8K: Human Organ Systems & HomeostasisUnit 3B: Photosynthesis, Respiration & Cellular EnergyUnit 7B: Population Genetics & Hardy-Weinberg EvolutionUnit 2G: Osmoregulation & Membrane DynamicsUnit 8R: Environmental Pollution & Organismal HealthUnit 5D: Organismal Reproduction & Life Cycles