ATI TEAS Science Practice Test #3

Questions and Answers

Which of the following types of tissues include cells of the immune system and of the blood?

Connective (correct)

Neural

Muscle

Epithelial

Which of the following regions of the body is divided into the thigh, leg, ankle, and foot?

Lower (correct)

Central

Upper

Head

Which best describes homeostasis?

A functional system of the body

A relatively constant environment within the body (correct)

Blood flow to every cell in the body

Neutral pathways that have integrated into the body

Which substance is plasma mostly composed of?

Water Signup and view all the answers

Which blood group is a universal donor?

O Signup and view all the answers

Blood oxygen levels are most likely low when blood...

fills the right atrium Signup and view all the answers

Which of the following could be a result of the effects of aging on hormones?

Loss of strength Signup and view all the answers

An intracellular chemical signal can be produced in the cell membrane. Once it is produced, where does it go?

To another part of the same cell Signup and view all the answers

During the aging process, not all hormone levels decrease; some actually increase. Which of the following is a hormone that may increase as a person ages?

Luteinizing Signup and view all the answers

After food has been masticated in the oral cavity, where does it go next?

Pharynx Signup and view all the answers

The diffusion of nutrients through the walls of the digestive system is critical to homeostasis in the body. Where does the majority of this diffusion take place in the digestive system?

Small intestine Signup and view all the answers

Carbohydrates are broken down into ____________.

Glucose Signup and view all the answers

During basal cell carcinoma, the epidermal cells in the stratum basale...

invade the dermis Signup and view all the answers

A dermatologist explains to a patient that a bacterial infection has affected the sebaceous glands. Which layer does this form of acne directly affect?

Stratum corneum Signup and view all the answers

The epidermis is made of _______ layers.

5 Signup and view all the answers

As soon as an invader, known as a(n) _______ enters the body, the body begins to fight.

pathogen Signup and view all the answers

Antibodies attach to invading pathogens, marking them for __________.

destruction Signup and view all the answers

Where is skeletal muscle found?

Attached to bone Signup and view all the answers

Which describes the shape of a skeletal muscle cell?

Elongated Signup and view all the answers

If a person smells something sweet, what form of information is this initially perceived as in the nervous system?

Sensory Signup and view all the answers

While hiking, a person is startled after encountering a bear. Her palms get sweaty and her heart starts racing. Which part of her nervous system was directly stimulated?

Sympathetic Signup and view all the answers

Fertilization usually occurs in the _____________ _.

Fallopian tube Signup and view all the answers

The male reproductive system includes ______________.

the penis and epididymis Signup and view all the answers

Fertilization (fusing of one sperm and an ovum) results in a(n) ____________.

zygote Signup and view all the answers

Prior to sexual intercourse, the penis becomes erect ____________.

when the corpus cavernosum fills with blood Signup and view all the answers

What structure channels food to the esophagus and air to the trachea?

Larynx Signup and view all the answers

A person is diagnosed as having acidosis, a condition in which the blood pH is below 7.45. What does the doctor most likely conclude?

Too much carbon dioxide is found in the blood Signup and view all the answers

What structure plays a role in air conduction?

Trachea Signup and view all the answers

How many bones are in the adult human body?

206 Signup and view all the answers

What body system is the skeletal system most closely associated with when hematopoiesis happens?

Cardiovascular system Signup and view all the answers

Which describes one function of the urinary system?

Osmoregulate blood and water Signup and view all the answers

Blood flows from the renal _______ into the kidney, where it is filtered.

artery Signup and view all the answers

The Urinary tract is composed of the ______, ureter, and urethra.

bladder Signup and view all the answers

What is the final structure through which urine must travel to empty out of the body?

Urethra Signup and view all the answers

Which sequence describes the hierarchy level of biological organization?

Kingdom, phylum, class, order, family, genus, species Signup and view all the answers

Which example is part of the scientific method?

A researcher analyzes how many plants respond well to a new fertilizer Signup and view all the answers

Why did it take many years for the cell theory to be developed?

Advancements in microscopy took place slowly Signup and view all the answers

What organelle is only associated with plant cells?

Cell wall Signup and view all the answers

What phase is the cell cycle part of?

Interphase Signup and view all the answers

What is the correct order of the stages of the cell cycle?

G1, S, G2, M Signup and view all the answers

When would a cell most likely contain the most nucleotides?

G1 Signup and view all the answers

The sequence of amino acids in a gene determines?

the primary structure of a protein Signup and view all the answers

Which statement best represents Mendel's experiments with garden peas?

Mendel collaborated with others interested in genetics to develop heredity guidelines we still use today Signup and view all the answers

Mendel discovered the pattern associated with ______ after developing a series of rules in genetics.

heredity Signup and view all the answers

A student notices a pattern of stripes on five tigers. Each of the five tigers has the same stripe pattern. Using his inductive reasoning, what does he logically assume based on this information?

Each offspring will have the same stripe pattern Signup and view all the answers

What metric base unit is used to record mass?

Gram Signup and view all the answers

A researcher notices a positive correlation between the height of a plant and nutrient concentration over time. Based on this observation, what conclusion does he reach?

When the amount of nutrients available to the plant increases, its height also increases Signup and view all the answers

Which of the following numbers has the smallest magnitude?

5.14 x 10 ^-27 Signup and view all the answers

A nanometer is equal to 1 x 10 ^-9 meter. How is this value written in standard notation?

0.000000001 m Signup and view all the answers

A storage tank is filled with 15 gallons of water. How many quarts of water is the tank storing?

19 Signup and view all the answers

It is advantageous to use the English system when...

describing a reported value using tons Signup and view all the answers

When metric prefix corresponds to an equivalent value of 1,000?

Kilo - Signup and view all the answers

A nurse converts a recorded value of 180 pounds to ounces. What unit of measurement does this correspond to?

Weight Signup and view all the answers

Study Notes

Tissue Types

Connective tissue includes immune system cells and blood components.
Muscular tissue is responsible for movement; neural tissue facilitates communication.

Body Regions

Lower body region is divided into thigh, leg, ankle, and foot.

Homeostasis

Homeostasis refers to a relatively constant internal environment within the body.

Blood Plasma Composition

Plasma's primary composition is water, which makes up about 90% of its volume.

Blood Groups

Blood type O is the universal donor, as it lacks A and B antigens.

Blood Oxygen Levels

Blood oxygen levels are typically low when blood fills the right atrium, as it returns from the body.

Hormonal Changes with Aging

Aging can lead to loss of strength due to hormonal shifts, affecting muscle and metabolism.

Intracellular Signaling

Intracellular signals produced in the cell membrane are directed to other parts of the same cell.

Hormonal Increases with Age

Luteinizing hormone levels may increase as a person ages.

Digestion Pathway

After chewing, food moves from the oral cavity to the pharynx, preparing for swallowing.

Nutrient Absorption Sites

Most nutrient diffusion occurs in the small intestine, crucial for homeostasis.

Carbohydrate Breakdown

Carbohydrates are mainly broken down into glucose for energy.

Basal Cell Carcinoma

In basal cell carcinoma, epidermal cells invade the dermis.

Acne and Skin Layers

Acne affects the stratum corneum due to bacterial infections impacting sebaceous glands.

Epidermis Structure

The epidermis consists of five distinct layers.

Immune Response

Pathogens trigger immune responses, with antibodies marking them for destruction.

Skeletal Muscle

Skeletal muscle is attached to bones; its cells are elongated in shape.

Sensory Information

The sweet smell is initially perceived as sensory information within the nervous system.

Nervous System Response

The sympathetic nervous system is activated in response to stress, increasing heart rate and sweat.

Fertilization Location

Fertilization usually occurs in the fallopian tubes.

Male Reproductive System

Key structures include the penis and epididymis, crucial for sperm storage and transfer.

Fertilization Outcome

The fusion of sperm and ovum results in a zygote.

Erection Process

Erection occurs as the corpus cavernosum fills with blood, influenced by muscular responses.

Airway and Food Passage

The larynx channels food to the esophagus and air to the trachea.

Acidosis Diagnosis

Acidosis indicates too much carbon dioxide in the blood, lowering pH levels.

Air Conduction Structure

The trachea plays a vital role in air conduction within the respiratory system.

Human Bone Count

An adult human body typically contains 206 bones.

Hematopoiesis and Systems

The skeletal system is closely linked with the cardiovascular system during blood cell formation.

Urinary System Function

The urinary system osmoregulates blood and maintains water balance.

Renal Blood Flow

Blood flows from the renal artery into the kidney for filtration.

Urinary Tract Structure

The urinary tract includes the bladder, ureter, and urethra.

Urine Elimination Pathway

Urine exits the body through the urethra, the final structure in the urinary pathway.

Biological Organization Hierarchy

The biological organizational hierarchy includes kingdom, phylum, class, order, family, genus, species.

Scientific Method Component

Analyzing plant responses to fertilizer is part of the scientific method.

Cell Theory Development

Advancements in microscopy were slow, delaying the development of the cell theory.

Unique Plant Cell Structure

The cell wall is an organelle unique to plant cells.

Cell Cycle Phases

The cell cycle is primarily associated with the interphase.

Cell Cycle Stages Order

Correct order: G1, S, G2, M.

Nucleotide Concentration

Cells contain the highest number of nucleotides during the S phase.

Gene Function

The sequence of amino acids in a gene determines the primary structure of a protein.

Mendel’s Genetics Conclusion

Mendel’s experiments laid foundational conclusions about heredity still respected today.

Inductive Reasoning

Observing consistent stripe patterns in tigers leads to the assumption that offspring will have the same patterns.

Metric Unit for Mass

The gram is the primary metric base unit for measuring mass.

Plant Height and Nutrient Correlation

A positive correlation exists where increased nutrient availability leads to greater plant height.

Smallest Magnitude Comparison

Among the options, 5.14 x 10^-27 has the smallest magnitude.

Nanometer Conversion to Standard Notation

One nanometer is equal to 0.000000001 meters in standard notation.

Gallons to Quarts Conversion

A tank filled with 15 gallons stores 60 quarts of water.

English System Advantages

Using the English system is beneficial for describing values in tons.

Metric Prefix for 1000 Value

The prefix 'kilo-' corresponds to a value of 1,000.

Measurement Conversion

Converting 180 pounds to ounces corresponds to a weight measurement.

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Description

Test your knowledge with this practice quiz covering essential concepts in science for the ATI TEAS exam. This quiz includes questions about body tissues, regions, homeostasis, and more, aimed at helping you prepare effectively. Perfect for students seeking to improve their understanding of key scientific principles.