AnswersQ5 Biology 2014Lab: Blood Typing

Lab: Blood Typing — Unit test Answers

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1
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In which of the following scenarios does skin help to maintain body temperature?

A
When jumping into cold water, one’s skin releases body heat into the water.
B
While walking during a hot summer day, sweat on the skin evaporates and cools the body.
C
After accidentally touching a hot cookie sheet, a blister forms on one’s finger where all the heat entered the body.
D
After a long run, an Olympic athlete stretches out her arms and legs.
2
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A sudden change in the body’s salt and water balance would most likely be caused by a malfunction in which organ?

A
liver
B
kidney
C
bladder
D
lungs
3

How does the respiratory system help build social relationships?

A
The respiratory system helps produce sound, which enables humans to communicate with one another.
B
The respiratory system helps prevent the spread of disease so humans are able to live in communities together.
C
The respiratory system helps humans have feelings and base decisions on those feelings.
D
The respiratory system helps humans remember and recall memories of friends and special times.
4

The graph shows the changing levels of hormones during menstruation and ovulation. In general, what happens to the hormone levels between days 21 and 27, just prior to menstruation if the egg was not fertilized?

Question illustration
A
Hormone levels generally decrease.
B
Hormone levels generally rise.
C
Hormone levels remain the same.
D
Hormone levels go in two different directions.
5

What does the immune system protect the body against?

A
changes of the internal body temperature
B
changes in the temperature of environment
C
changes caused by harmful pathogens
D
changes in the pH of the blood
6

Which of the following has the smallest number of cells?

A
blastocyst
B
zygote
C
fetus
D
embryo
7

Asthma is a respiratory disorder that can cause the airways to temporarily constrict, or get narrower. Which function of the respiratory system is most affected by the narrowing of the airways?

A
water balance
B
air filtration
C
heat balance
D
gas exchange
8

What do the pancreas, liver, salivary glands, and gall bladder have in common?

A
They are all involved in mechanical digestion.
B
They are all accessory structures.
C
They all digest carbohydrates.
D
They all release digestive enzymes.
9

Which causes a drop in female hormone levels?

A
the onset of the menstrual flow
B
the release of an egg from the ovary
C
the thickening of the uterine wall
D
the failure of an egg to be fertilized
10

During a third-trimester ultrasound, what would a doctor expect to observe in a fetus?

A
initial development of organs
B
response to noise and light
C
presence of a tail-like structure
D
the first heartbeat
11

Leukopenia is a condition characterized by a decrease in white blood cells. What effect does leukopenia have on the body's ability to fight infection?

A
Leukopenia increases the body's ability to fight infection.
B
Leukopenia decreases the body's ability to fight infection.
C
Leukopenia has no effect on the body's ability to fight infection.
D
Leukopenia increases the body's ability to fight infection at certain times and decreases it at other times.
12

What do structures B and C have in common?

Question illustration
A
Both contain chyme.
B
Both contain partially digested food.
C
Both contain waste material ready for removal.
D
Both contain stored food.
13

In the 1950s, the structure of DNA was discovered by using models and x-ray chromatography. Currently, science has used advanced technology to completely map out the genes in a human’s body. What would be the best advantage of using this information?

A
gene therapy to correct defective genes that cause diseases
B
gene therapy to remove bacteria from the soil
C
more communicable diseases
D
fewer communicable diseases
14

Lice are small wingless insects that make their home in human hair and feed on very small amounts of blood from the scalp. They can be transferred from person to person and through the use of contaminated items such as brushes or pillows. Which type of disease is lice infestation?

A
communicable
B
noncommunicable
C
genetic
D
lifestyle
15

Asbestosis is a lung disease that is caused by inhaling asbestos, a mineral that was once used as insulation and fire retardant in building materials. Which best describes abestosis?

A
It disproves spontaneous generation.
B
It offers supporting evidence regarding miasma.
C
Its transmission cannot be studied using the germ theory of disease.
D
Its transmission can be studied using the germ theory of disease.
16

A team from New York Presbyterian hospital is conducting a study about a recent increase in cases involving both excess sweating and kidney stones. What would the team need before it draws a conclusion about the cases?

A
medications that are specifically designed to treat the sickness
B
machines that are built to process blood and reduce symptoms until patients are healthy again
C
data that profile the various patients who report these symptoms
D
proof that the excess sweating is related to the excessive kidney stones
17

A disorder causes a human offspring to have 47 chromosomes instead of 46. In which process was there most likely a malfunction?

A
birth
B
blastocyst formation
C
fetal development
D
gametogenesis
18

Which best describes the testes?

A
They produce hormones and sperm.
B
They are the male copulatory organ.
C
They give sperm nourishment and motility.
D
They are the pouch-like skin that protects the scrotum.
19

Homeostasis is the ability of the body to maintain internal balance despite changing external conditions. How does the respiratory system help maintain homeostasis?

A
The respiratory system helps release hormones to control body processes.
B
The respiratory system helps release unwanted heat and water from the body.
C
The respiratory system produces white blood cells that kill disease-causing organisms.
D
The respiratory system releases enzymes that help in the break down of food.
20

Which terms best complete the chart about characteristics of human development between fertilization and birth?Stages of Human GestationFirst trimesterSecond trimesterThird trimester- Embryo develops- Organs begin to develop- (1)- Starts swallowing- Fat begins to develop- (2)- All organs are developed- Can hear and see- (3)

A
(1) Facial features form(2) Heartbeat can be heard(3) Nerve cells develop rapidly
B
(1) Heartbeat can be heard(2) Nerve cells develop rapidly(3) Facial features form
C
(1) Nerve cells develop rapidly(2) Facial features form(3) Heartbeat can be heard
D
(1) Facial features form(2) Nerve cells develop rapidly(3) Heartbeat can be heard

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