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Eleventh Grade (Grade 11) Biology Questions

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Grade 11 Skin, Skeleton, and Muscles
The repair of bone fractures involves four major events.
  1. True
  2. False
Grade 11 Nervous and Endocrine Systems
The adrenal glands are absolutely essential for life.
  1. True
  2. False
Grade 11 Nervous and Endocrine Systems
What is the life span of a neuron?
  1. 10 years
  2. 50 years
  3. 10 days
  4. length of host's life span
Grade 11 Skin, Skeleton, and Muscles
How common are stratified columnar epithelial tissues?
  1. somewhat common
  2. very common
  3. common
  4. not very common
Grade 11 Nervous and Endocrine Systems
There are five types of glial cells.
  1. True
  2. False
Grade 11 Zoology
Which is a color not found on the Navanax?
  1. pink
  2. blue
  3. yellow
  4. orange
Grade 11 Skin, Skeleton, and Muscles
Which muscle is located in the anterior superficial musculature? Select all that apply.
  1. platysma
  2. pectoralis major
  3. biceps brachii
  4. flexor carpi radialis
Grade 11 Nervous and Endocrine Systems
How many parts does the adrenal gland have?
  1. four
  2. three
  3. two
  4. one
Grade 11 Skin, Skeleton, and Muscles
Which statement is not true regarding the comparison of type I (slow oxidative) and type II b (fast glycolytic) skeletal muscle fibers? Select all that apply.
  1. Type I fibers have more abundant mitochondria.
  2. Type I fibers fatigue more readily.
  3. Type I fibers have more abundant myoglobin.
  4. Type I fibers have more abundant capillaries.
  5. Type I motor units contain fewer fibers than type II b motor units.
Grade 11 Skin, Skeleton, and Muscles
During any isometric twitch in a skeletal muscle,
  1. tension exceeds load.
  2. tetanus occurs.
  3. load exceeds tension.
  4. the whole muscle shortens.
Grade 11 Skin, Skeleton, and Muscles
Which description applies to curare?
  1. is an autoimmune disease
  2. blocks acetylcholinesterase
  3. is a muscarinic acetylcholine antagonist
  4. is a nicotinic acetylcholine antagonist
  5. blocks acetylcholinesterase and is a muscarinic acetylcholine antagonist
Grade 11 Skin, Skeleton, and Muscles
Which statement regarding the motor end plate of a skeletal muscle fiber is true?
  1. Muscarinic receptors in the end plate are activated by binding to acetylcholine.
  2. Temporal summation of end plate potentials is required to trigger an action potential in the muscle-fiber membrane
  3. Acetylcholinesterase in the end plate membrane catalyzes the breakdown of acetylcholine.
  4. Sympathetic nerve fibers innervate skeletal muscle.
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