2nd SET OF ATI TEAS 7 SCIENCE
Q's TEST QUESTIONS WITH
CORRECT ANSWERS
A botanist wants to determine if environmental temperature affects root growth. In her experiment, she creates 4 rooms at
temperatures that vary by 5 degrees F. Each room gets 20seedlings of the same species, which she grows on agar plates for
60 days. Once a day, she measures the length of each seedling's root. At the end of 60 days, she compares the length of the
roots with the room temperature. She finds the the room with the lowest temperature produced the longest roots.
Which of the following is best identified as a hypothesis?
The environmental temperature can affect the growth of a plant's root
Plants need light to grow
A colder environment produces longer roots
Plants need 60 days in order to grow their roots - CORRECT ANSWER-The environmental temperature can affect the growth
of a plant's root
A botanist would like measure the root length of various seedlings. Which tool would be best?
A ruler with precision to the half inch
A microscope and a ruler
A microscope with magnification to the 10th power
A microscope and a ruler with precision to the millimeter - CORRECT ANSWER-A microscope and a ruler with precision to the
millimeter
A researcher is conducting an experiment on root growth and light exposure. The researcher suspects that, since plants go
underground, roots will grow better if they have less exposure to light. The researcher divides seeds into 4 groups. Group 1 has
20 seeds and is planted in dirt. Group 2 has 20 seeds and is placed in an agar dish exposed to light 2 hours a day. Group 3 h as
5 seeds and is placed in an agar dish exposed to light 4 hours a day. Group 4 has 5 seeds is placed in an agar dish exposed t o
light 20 hours a day.
What problem has the researcher created in this experimental design?
The researcher does not have a control group.
The researcher has not kept the sample size equal across all groups.
The researcher has designed an experiment that does not test her hypothesis.
The researcher cannot replicate this experiment - CORRECT ANSWER-The researcher has not kept the sample size equal
across all groups
A student has been assigned an experiment into the life cycle of a frog. First, she needs to count the daily number of tadpol es
at her assigned pond. Which of the following would give her the most accurate and reliable data?
Going to the pond in every morning, collecting a 1 L sample of water, and counting the tadpoles
Going to the pond every morning at 10 a.m., collecting a 1 L sample of water, and counting the tadpoles
, Going to the pond every morning at 10 a.m., collecting a 1 L sample of water at 3 set locations at the pond, and counting the
tadpoles
Going to the pond once a week at 10 a.m., collecting a 1 L sample of water at 3 set locations at the pond, and counting the
tadpoles - CORRECT ANSWER-Going to the pond every morning at 10 a.m., collecting a 1 L sample of water at 3 set locations
at the pond, and counting the tadpoles
Amino acids are the structural basis of proteins. What makes amino acids?
Amine group
Carboxyl group
Glycerol
Sugar residue - CORRECT ANSWER-Amine group
Carboxyl group
At which step in the scientific method might a scientist create a model?
Hypothesis
Data analysis
Experimentation
Conclusion - CORRECT ANSWER-Conclusion
Dysentery is an infectious disease caused by what type of microbe ?
Helminth
Bacteria
Protozoan
Fungus - CORRECT ANSWER-Protozoan
How many pairs of chromosomes are in a human cell?
46
23
64
32 - CORRECT ANSWER-46
How many protons does a negatively charged isotope of Nitrogen-12 have?
(there was an image, could not insert)
5
7
12
14 - CORRECT ANSWER-7
If the flow of bile into the duodenum were blocked, the digestion of which of
the following would be most affected?
Carbohydrates
Lipids
Proteins
Carbohydrates and proteins - CORRECT ANSWER-Lipids
In a reduction reaction, electrons are ____________ so that the end ion is more __________.
lost, positive
gained, negative
lost, negative
gained, positive - CORRECT ANSWER-gained, negative
KCl is an example of which type of bond?
Ionic bond
Covalent bond
Hydrogen bond
Polar Covalent - CORRECT ANSWER-Ionic Bond
Magnesium (Mg) undergoes a chemical reaction and becomes an ion. How
many electrons can you expect it lose or gain?
Magnesium will gain two electrons
Magnesium will gain six electrons
Magnesium will lose six electrons
Magnesium will lose two electrons - CORRECT ANSWER-Magnesium will lose two electrons
Sweat contains waste and help regulates body temperature. Which of the following are found in sweat found in the skin's
glands?
Vitamin D
Urea
Urine
Lactic acid - CORRECT ANSWER-Urea
Q's TEST QUESTIONS WITH
CORRECT ANSWERS
A botanist wants to determine if environmental temperature affects root growth. In her experiment, she creates 4 rooms at
temperatures that vary by 5 degrees F. Each room gets 20seedlings of the same species, which she grows on agar plates for
60 days. Once a day, she measures the length of each seedling's root. At the end of 60 days, she compares the length of the
roots with the room temperature. She finds the the room with the lowest temperature produced the longest roots.
Which of the following is best identified as a hypothesis?
The environmental temperature can affect the growth of a plant's root
Plants need light to grow
A colder environment produces longer roots
Plants need 60 days in order to grow their roots - CORRECT ANSWER-The environmental temperature can affect the growth
of a plant's root
A botanist would like measure the root length of various seedlings. Which tool would be best?
A ruler with precision to the half inch
A microscope and a ruler
A microscope with magnification to the 10th power
A microscope and a ruler with precision to the millimeter - CORRECT ANSWER-A microscope and a ruler with precision to the
millimeter
A researcher is conducting an experiment on root growth and light exposure. The researcher suspects that, since plants go
underground, roots will grow better if they have less exposure to light. The researcher divides seeds into 4 groups. Group 1 has
20 seeds and is planted in dirt. Group 2 has 20 seeds and is placed in an agar dish exposed to light 2 hours a day. Group 3 h as
5 seeds and is placed in an agar dish exposed to light 4 hours a day. Group 4 has 5 seeds is placed in an agar dish exposed t o
light 20 hours a day.
What problem has the researcher created in this experimental design?
The researcher does not have a control group.
The researcher has not kept the sample size equal across all groups.
The researcher has designed an experiment that does not test her hypothesis.
The researcher cannot replicate this experiment - CORRECT ANSWER-The researcher has not kept the sample size equal
across all groups
A student has been assigned an experiment into the life cycle of a frog. First, she needs to count the daily number of tadpol es
at her assigned pond. Which of the following would give her the most accurate and reliable data?
Going to the pond in every morning, collecting a 1 L sample of water, and counting the tadpoles
Going to the pond every morning at 10 a.m., collecting a 1 L sample of water, and counting the tadpoles
, Going to the pond every morning at 10 a.m., collecting a 1 L sample of water at 3 set locations at the pond, and counting the
tadpoles
Going to the pond once a week at 10 a.m., collecting a 1 L sample of water at 3 set locations at the pond, and counting the
tadpoles - CORRECT ANSWER-Going to the pond every morning at 10 a.m., collecting a 1 L sample of water at 3 set locations
at the pond, and counting the tadpoles
Amino acids are the structural basis of proteins. What makes amino acids?
Amine group
Carboxyl group
Glycerol
Sugar residue - CORRECT ANSWER-Amine group
Carboxyl group
At which step in the scientific method might a scientist create a model?
Hypothesis
Data analysis
Experimentation
Conclusion - CORRECT ANSWER-Conclusion
Dysentery is an infectious disease caused by what type of microbe ?
Helminth
Bacteria
Protozoan
Fungus - CORRECT ANSWER-Protozoan
How many pairs of chromosomes are in a human cell?
46
23
64
32 - CORRECT ANSWER-46
How many protons does a negatively charged isotope of Nitrogen-12 have?
(there was an image, could not insert)
5
7
12
14 - CORRECT ANSWER-7
If the flow of bile into the duodenum were blocked, the digestion of which of
the following would be most affected?
Carbohydrates
Lipids
Proteins
Carbohydrates and proteins - CORRECT ANSWER-Lipids
In a reduction reaction, electrons are ____________ so that the end ion is more __________.
lost, positive
gained, negative
lost, negative
gained, positive - CORRECT ANSWER-gained, negative
KCl is an example of which type of bond?
Ionic bond
Covalent bond
Hydrogen bond
Polar Covalent - CORRECT ANSWER-Ionic Bond
Magnesium (Mg) undergoes a chemical reaction and becomes an ion. How
many electrons can you expect it lose or gain?
Magnesium will gain two electrons
Magnesium will gain six electrons
Magnesium will lose six electrons
Magnesium will lose two electrons - CORRECT ANSWER-Magnesium will lose two electrons
Sweat contains waste and help regulates body temperature. Which of the following are found in sweat found in the skin's
glands?
Vitamin D
Urea
Urine
Lactic acid - CORRECT ANSWER-Urea
