Human Biology Past Paper questions
Function of the semicircular canals in the ear?
-Maintaining Balance
Explain why having two eyes makes it easier for a person to catch the ball?
Explain changes in the mass of glucose from day to night
• glucose produced/level increases during day
• (more) light available (for photosynthesis)
• decreased/used up at night, because no light/stored as starch/used in respiration
Function of prostate gland
Symptoms of a male that has a swollen prostate gland
,ALL Functions of Testis
• Produce sperm
Difference between a sperm and an ovum
How is a sperm and an ovum genetically similar?
-haploid/23 chromosomes/ both could contain an X chromosome
Function of Cilia:
Function of layer of mucus
Differences that would be seen on in an alveoli diagram if the person smokes a lot of cigarettes
-
,Differences between an artery and a vein
Name 2 substances that flow from tissue fluid to the blood through capillary walls
-Urea and Carbon dioxide
Features of capillaries that allow them to exchange substances efficiently
Explain homeostasis
How scientists can measure a person’s core temperature?
-Thermometer in mouth/ear
, Explain changes that would occur to a body if a person’s core body temperature decreases
Explain what is meant by the term carrier in a sex-linked disease
• allele found on X chromosome;
• not expressed/recessive/person not affected
• in heterozygote
Motor neurone function
Neuron that transmit impulses to effector organs/muscles/glands/controls movement/voluntary
actions
Sensory neurone function
-Neurone that transmits nerve impulses from receptor organs to the brain/CNS/Relay neurone
Difference between sensory neurone and a motor neurone
Function of the semicircular canals in the ear?
-Maintaining Balance
Explain why having two eyes makes it easier for a person to catch the ball?
Explain changes in the mass of glucose from day to night
• glucose produced/level increases during day
• (more) light available (for photosynthesis)
• decreased/used up at night, because no light/stored as starch/used in respiration
Function of prostate gland
Symptoms of a male that has a swollen prostate gland
,ALL Functions of Testis
• Produce sperm
Difference between a sperm and an ovum
How is a sperm and an ovum genetically similar?
-haploid/23 chromosomes/ both could contain an X chromosome
Function of Cilia:
Function of layer of mucus
Differences that would be seen on in an alveoli diagram if the person smokes a lot of cigarettes
-
,Differences between an artery and a vein
Name 2 substances that flow from tissue fluid to the blood through capillary walls
-Urea and Carbon dioxide
Features of capillaries that allow them to exchange substances efficiently
Explain homeostasis
How scientists can measure a person’s core temperature?
-Thermometer in mouth/ear
, Explain changes that would occur to a body if a person’s core body temperature decreases
Explain what is meant by the term carrier in a sex-linked disease
• allele found on X chromosome;
• not expressed/recessive/person not affected
• in heterozygote
Motor neurone function
Neuron that transmit impulses to effector organs/muscles/glands/controls movement/voluntary
actions
Sensory neurone function
-Neurone that transmits nerve impulses from receptor organs to the brain/CNS/Relay neurone
Difference between sensory neurone and a motor neurone
