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WorksheetsCategory 4 Biological Processes and Systems
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
Diatoms are one of the most common types of phytoplankton in marine habitats. Like plants, diatoms contain chlorophyll and produce glucose from which of the following?
a)
O2 and ATP
b)
CO2 and O2
c)
ATP and H2O
d)
CO2 and H2O
2.
Fireflies emit light. The production of light by an organism is called bioluminescence. To generate visible light, cells in a firefly’s tail produce thousands of luciferase enzymes. Luciferase binds to a chemical called luciferin. Once bound, the luciferase enzyme speeds up a chemical reaction that combines an oxygen molecule and luciferin to produce oxyluciferin. This reaction requires energy and releases light. Which of the following best describes how the luciferase enzyme speeds up the chemical reaction?
a)
Luciferase increases the amount of time the light is visible.
b)
Luciferase decreases the amount of energy required for the reaction to start.
c)
Luciferase increases the number of sites on luciferin that must bind to oxygen.
d)
Luciferase decreases the temperature of the environment inside the body of the firefly.
3.
The diagram shows the reproductive system of a plant.
Which of the following best describes the interaction that occurs between a plant’s reproductive parts during self-fertilization?
Which of the following best describes the interaction that occurs between a plant’s reproductive parts during self-fertilization?
a)
Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches the filament, where the sperm fertilizes the egg.
b)
Pollen moves from the ovule up through the style and is released from the stigma. The pollen is transferred to the anther, where the sperm fertilizes the egg.
c)
Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary, where the sperm fertilizes the egg.
d)
Pollen is released from the stigma and is transferred to the anther. A pollen tube grows down from the anther through the filament and fuses with the ovule, where the sperm fertilizes the egg.
4.
Animal body systems often coordinate their actions to carry out specific functions for the whole animal. Which of these correctly describes the interaction of two biological systems for a specific purpose in the human body?
a)
A
b)
B
c)
C
d)
D
5.
A science class is planning a field trip to a local farm that has a large pond. Which of the following lists the order of biological organization from smallest to largest that the students can expect to find at the pond?
a)
Organism, community, population, ecosystem
b)
Organism, population, community, ecosystem
c)
Population, organism, community, ecosystem
d)
Population, organism, ecosystem, community
6.
The internal transport of water and minerals in plants requires that two systems work together. Which diagram correctly describes how the two systems accomplish this?
a)
F
b)
G
c)
H
d)
J
7.
Structures represented in the illustration below are found in the lower epidermis of a plant leaf. The illustration at right shows the response to a certain environmental condition.
The response represented in the illustration would most likely be caused by -
The response represented in the illustration would most likely be caused by -
a)
a reduced supply of oxygen
b)
long periods of rainfall
c)
high concentrations of glucose
d)
little available water
8.
Coracias garrulus is a blue bird with an orange-brown back. The offspring of this bird have an effective defense mechanism. The young birds vomit and cover themselves in a foul-smelling orange liquid when they sense a threat by predators. Which two systems alert the young bird to the danger and help produce the vomit it uses as a defense?
a)
Nervous and digestive systems
b)
Integumentary and muscular systems
c)
Immune and respiratory systems
d)
Excretory and reproductive systems
9.
An informational pamphlet in a health clinic describes an interaction between body systems.
Which statement identifies the body systems that are directly involved in the interaction described and explains how they accomplish the interaction?
Which statement identifies the body systems that are directly involved in the interaction described and explains how they accomplish the interaction?
a)
The nervous system produces hormones that stimulate the ovum, and the circulatory system moves the ovum into the uterine tube.
b)
The circulatory system supplies the uterine wall with oxygenated blood, and the immune system prevents damage to the ovum.
c)
The reproductive system produces the ovum, and the muscular system causes the migration of the ovum by peristaltic contractions.
d)
The excretory system expels the ovum from the ovary, and the nervous system causes the contractions of the smooth tissues of the uterine wall.
10.
When the level of carbon dioxide in the blood is too high, the excess carbon dioxide reacts with water and produces carbonic acid. The carbonic acid causes the blood pH to become more acidic. When the blood pH becomes too acidic, chemoreceptors in the brain instruct the body to react and maintain homeostasis in blood pH. Which of these responses by the body would eliminate the excess carbon dioxide and help maintain homeostasis in blood pH?
a)
Increasing the body temperature by shivering
b)
Increasing glucose levels in the blood
c)
Breathing more deeply and frequently
d)
Decreasing the heart rate
11.
The diagram shows the internal feedback mechanism that maintains blood-calcium (Ca2+) homeostasis.
If a person has a blood-calcium (Ca2+) level of 8 mg/100 mL of blood, which of the following mechanisms does the body use to maintain blood-calcium homeostasis?
If a person has a blood-calcium (Ca2+) level of 8 mg/100 mL of blood, which of the following mechanisms does the body use to maintain blood-calcium homeostasis?
a)
The kidneys take up more Ca2+ and release vitamin D.
b)
The bones release Ca2+.
c)
The intestines increase reabsorption of Ca2+.
d)
All of the above
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