ATI TEAS Science

Epidermis and dermis

A cut reaches the sebaceous glands and hair follicles. This cut has reached which layer(s) of the skin?

C

A purple-flowered pea plant and a white-flowered pea plant were crossed. The allele for purple flowers is dominant, and the allele for white flowers is recessive. Of 1,000 offspring, 498 were purple-flowered pea plants, and 502 were white-flowered pea plants. Based on these results, which of the following can be concluded about the parent plants? A. The white-flowered pea plant is homozygous dominant. B. The white-flowered pea plant is heterozygous. C. The purple-flowered pea plant is heterozygous. D. The purple-flowered pea plant is homozygous dominant.

C.

A substance in a solid state is put on a hot plate with a thermometer. Every minute, the temperature of the substance is recorded. According to the graph, what is happening to the substances? A. As heat is added, the substance is becoming more and more dense. B. As heat is added, the particles holding the substance together are becoming stronger. C. As heat is added, the forces holding the particles together are breaking, changing the state. D. As heat is added, the substances is maintaining room temperature by absorbing the energy.

B.

According to the graph, which of the following identifies when fertilization is most likely? A. Between day 0 and 7 B. After luteinizing hormone (LH) levels peak and begin to decline C. Before ovulation D. When estrogen levels are high

D.

An experiment is conducted to test the effects of caffeine on heart rate. Four trails are set up. In each trial, a daphnia, a small water organism, is given different amounts of caffeine. After 5 minutes, the number of heart beats are counted for 1 minute. The results are shown in the table. Which of the following explanations states a logical cause and effect of caffeine on the heart beat of daphnia? A. Daphnia need caffeine to pump blood throughout their body. B. Caffeine caused daphnia to lower their heart rates over time. C. Caffeine does not affect daphnia's heart rate D. Daphnia given to much caffeine may die.

C.

Based on the data, daphnia that are given to much caffeine may die. Which of the following experimental practices would strengthen the conclusion made about daphnia and caffeine? A. The experimenter should test the experiment with other substances besides caffeine. B. The experimenter should test the experiment using different organisms. C. The experimenter should test each condition more than once. D. The experimenter should collect data after 10 min instead of 5 min.

B. In the alveolar air space

During inhalation, where would you expect to find a higher concentration of oxygen? A. In the capillaries B. In the alveolar air space C. In the pulmonary artery D. In the heart

Bone

In what body structure are white blood cells produced?

D. Enzyme activity is greatest at 40 degrees Celsius.

Joseph and Demarius conducted an experiment on the activity of an enzyme. They tested whether the enzyme activity changed at different temperatures from 10 to 60 degrees Celsius Based on the graph, which of the following best describes the relationship between enzyme activity and temperature? A. Enzyme activity is greatest at temperatures below 30 degrees Celsius. B. Enzyme activity decreases between 20 to 30 degrees Celsius. C. Enzyme actively is unaffected by temperature change. D. Enzyme activity is greatest at 40 degrees Celsius.

A. Mechanical digestion

Molecules are broken down into smaller pieces by the churning of muscles in the stomach. Which of the following is this an example of? A. Mechanical digestion B. Chemical digestion C. Enzymatic digestion D. Peristalsis

C

The diagram shows two substances contained in equal size containers. Which of the following statements best explains the density of the substances? A. Both substances have equal densities because they have equal volumes B. The first substance is less dense because it has more volume and less mass C. The first substance is less dense because is has less mass in the same amount of volume D. The first substance is denser because it has less mass in the same amount of space

A. Synthesis

This chemical reaction equation is an example of what type of reaction? H2+20-->H2O A. Synthesis B. Decomposition C. Single displacement D. Double displacement

Digestion (involuntary)

What action is autonomic nervous system engaged in?

AIDS (Acquired Immune Deficiency Syndrome)

What disease is caused by a virus that infects T cells?

Mucus

What is a nonspecific barrier of the immune system?

Increase in heart rate

What is a result of the adrenal gland releasing epinephrine into the blood?

Testosterone

What is the name for the hormone responsible for male secondary sex characteristics?

Salivary gland

What is the name of the structure that releases an enzyme that breaks down starch in the mouth?

Hypothalamus

What part of the endocrine system is found in the brain?

Renin

What part of the genitourinary system regulates blood pressure?

Actin and myosin

What proteins are responsible for the contraction of a muscle?

Trachea

What structure connects the throat to the lungs?

Ovary

What structure is where female gametes are produced?

Pancreas

What structure releases insulin and glucagon?

Urinary bladder

What structure stores waste before it is released from the body?

urine

What substance describes the fluid that contains urea, water, and salts that are released through the urethra?

Tidal volume

What term is used to describe the amount of air in a normal inhalation or exhalation?

Chyme

What term refers to the partially digested food leaving the stomach?

A.

What tool and unit would be used to find the volume of a brick? A. Ruler and cm3 B. Ruler and m3 C. Balance and g D. Graduated cylinder and mL

Leukocyte

What type of cell helps protect against disease?

Cardiac muscle

What type of tissue would you find in the heart?

Blood vessels near the surface of the body would constrict

What would result from a decrease in body temperature?

epidermis

Where are melanocytes found?

Pulmonary vein

Where does the blood flow go next after being oxygenated in the lungs?

Pulmonary artery

Which blood vessels carries deoxygenated blood from the heart to the lungs?

Mitochondria

Which cell structures contain cristae?

D

Which of the following best describes the relationship between a chromosome and a gene? A. Each gene forms is own chromosome. B. Each chromosome contains a single gene. C. Each gene contains a specific number of chromosomes. D. Each chromosome contains a specific number of genes.

C

Which of the following describes the function of the plasma membrane? A. It provides energy to the cell. B. It helps to build proteins C. It maintains the cell's internal environment. D. It produces adenosine triphosphate (ATP) for cells.

A. Body movement

Which of the following functions is an example of how skeletal and neuromuscular system work together? A. Body movement B. Organ protection C. Pathogen protection D. Calcium storage

C.

Which of the following hypotheses is supported by the data? A. All organisms increase their heart beats when given caffeine. B. Organisms decrease their heart beats when exposed to caffeine. C. When given caffeine, daphnia increases their heart rate. D. When given caffeine, daphnia decreases their heart rate.

B. A micropipette

Which of the following instruments would most accurately measure 0.1 mL of a liquid? A. A 50-mL beaker B. A micropipette C. A graduated cylinder D. An Erlenmeyer flask

A. Tibia

Which of the following is an example of a long bone? A. Tibia B. Rib C. Skull D. Pelvis

Glycogen

Which of the following is classified as a carbohydrate? A. DNA B. Endorphin C. Glycogen D. Amylase

A. NaCl

Which of the following is example of an ionic compound? A. NaCl B. CO C. C6H12O6 D.H2O

C.

Which of the following is the dependent variable in this experiment? A. Length of time measuring heart beats B. Amount of caffeine C. Number of heart beats D. Type of organism

B.

Which of the following statements best describes the subatomic particles that make up an atom ? A. Protons and elections are about the same size and are found in the nucleus B. Protons and neutrons have about the same mass and can be found in the nucleus C. Electrons are found in the nucleus and make up most of the mass of an atom D. Protons are the only particles with mass and can be found in the nucleus

D. Small intestine

Which of the following structures is medial to the large intestine ? A. Stomach B. Pancreas C. Liver D. Small intestine