Aging and Human Lifespan
Biology ⇒ Human Biology
Aging and Human Lifespan starts at 9 and continues till grade 12.
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See sample questions for grade 11
Describe how lifestyle choices can impact the rate of aging.
Describe one reason why the elderly are at higher risk for dehydration.
Describe one way in which the immune system changes with age.
Describe the difference between chronological age and biological age.
Describe the free radical theory of aging.
Explain how oxidative stress contributes to aging.
Explain the concept of 'healthspan' and how it differs from 'lifespan'.
Explain the role of antioxidants in aging.
Which of the following best describes sarcopenia?
(1) Loss of bone density
(2) Loss of muscle mass
(3) Loss of vision
(4) Loss of hearing
Which of the following is a characteristic of Alzheimer's disease?
(1) Loss of bone density
(2) Memory loss
(3) Increased muscle strength
(4) Improved vision
Which of the following is a common age-related change in the respiratory system?
(1) Increased lung elasticity
(2) Decreased lung capacity
(3) Enhanced oxygen exchange
(4) Increased cilia activity
Which of the following is a common cognitive change associated with normal aging?
(1) Sudden memory loss
(2) Gradual decline in processing speed
(3) Complete loss of language skills
(4) Enhanced problem-solving ability
Fill in the blank: _______ are repetitive DNA sequences at the ends of chromosomes that protect them from deterioration.
Fill in the blank: The age-related loss of bone mass is known as _______.
Fill in the blank: The gradual decline in the ability of the body to repair itself is known as _______.
Fill in the blank: The loss of hearing associated with aging is called _______.
True or False: All age-related changes are considered diseases.
True or False: All species have the same maximum lifespan.
True or False: Caloric restriction has been shown to extend lifespan in some animal models.
True or False: DNA repair mechanisms become less efficient with age.
