Which of the heart chambers is the largest?

A. Left atrium

B. Right atrium

C. Left ventricle

D. Right ventricle

Answer Explanation:

Of the four heart chambers, the left ventricle is the largest. When it contracts, it pushes blood out to the organs and extremities of the body. The right ventricle pushes blood into the lungs. The atria, on the other hand, receive blood from the outlying parts of the body and transport it into the ventricles.

The basic process works as follows: Oxygen-poor blood fills the right atrium and is pumped into the right ventricle. from which it is pumped into the pulmonary artery and on to the lungs. In the lungs, this blood is oxygenated. The blood then reenters the heart at the left atrium, which, when full, pumps into the left ventricle. When the left ventricle is full, blood is pushed into the aorta and on to the organs and extremities of the body.

Therefore, the Correct Answer is C.

Q #1: Which of the following orbitals is the last to fill?

A. 1s

B. 3s

C. 4p

D. 6s

Answer Explanation

Of these orbitals, the last to fill is 6s.

Orbitals fill in the following order: 1s, 25, 2p. 35, 3p, 4s, 3d, 4p, 55, 4d, 5p. 6s, 4f, 5d, 6p. 7s, 5f, 6d, and 7p. The number is the orbital number, and the letter is the sublevel identification. Sublevels has one orbital and can hold a maximum of two electrons. Sublevel p has three orbitals and can hold a maximum of six electrons. Sublevel d has five orbitals and can hold a maximum of 10 electrons, Sublevel f has seven orbitals and can hold a maximum of 14 electrons.
Q #2: There are three Insects that are being compared under a microscope. As a scientist, you decide that measuring them would be an important part of recording their data. Which unit of measurement would best for this situation?

A. Centimeters

B. Meters

C. Micrometers

D. Kilometers

Answer Explanation

The best use of the International System of Units (SI) for this situation would be the use of the micrometer as it is the smallest unit of measurement provided and the scientist is using a microscope to view the insects.
Q #3: Which of the following is exchanged between two or more atoms that undergo ionic bonding?

A. Neutrons

B. Transitory electrons

C. Valence electrons

D. Electrical charges

Answer Explanation

An ionic bond forms when one atom donates an electron from its outer shell, called a valence electron, to another atom to form two oppositely charged atoms.
Q #4: Which of the following is true regarding adipocytes?

A. They are involved in the secretion of glucose.

B. They are responsible for storing the fat that is found in adipose tissue

C. They are critical in the digestive breakdown of fat

D. They are the foundational element of muscles

Answer Explanation

Adipocytes are primarily seen in adipose or fat tissue. Their primary function is the storage of fat Adipocytes play a crucial role in maintaining proper energy balance, storing calories in the form of lipids, and mobilizing energy sources in response to stress. They are not involved in the digestion of fat or the secretion of glucose, nor are they the foundational element of muscles
Q #5: Which of the heart chambers is the largest?

A. Left atrium

B. Right atrium

C. Left ventricle

D. Right ventricle

Answer Explanation

Of the four heart chambers, the left ventricle is the largest. When it contracts, it pushes blood out to the organs and extremities of the body. The right ventricle pushes blood into the lungs. The atria, on the other hand, receive blood from the outlying parts of the body and transport it into the ventricles.

The basic process works as follows: Oxygen-poor blood fills the right atrium and is pumped into the right ventricle. from which it is pumped into the pulmonary artery and on to the lungs. In the lungs, this blood is oxygenated. The blood then reenters the heart at the left atrium, which, when full, pumps into the left ventricle. When the left ventricle is full, blood is pushed into the aorta and on to the organs and extremities of the body.
Q #6: Given that there are over 100 million residential addresses in the United States, which of the following best describes a flaw of this survey as it is described?

A. There were not enough age groups to show a trend based on age.

B. The addresses were chosen randomly rather than strategically

C. The distribution of ages in the sample did not reflect the actual population

D. Each response represents only one person per address

Answer Explanation

While the random selection and large number of surveys sent out were a good start, to truly study the relationship between age and screen usage, it would have been better to have a few more age groups or just a direct age value from each participant rather than four large categories. As far as whether the age distribution accurately reflected the population, we don't have enough information to say if that was a problem or not. Also, the fact that each response is from just one person at the address is not a flaw but a reasonable way to get a good variety of responses
Q #7: Where is the scapula in relation to the olecranon?

A. Distal

B. Lateral

C. Ventral

D. Superior

Answer Explanation

The scapula, commonly known as the shoulder blade, is above the olecranon, commonly known as the elbow. Conversely, the olecranon is distal or inferior to the scapula.
Q #8: Which structure of the nervous system carries action potential in the direction of a synapse?

A. Cell body

B. Axon

C. Neuron

D. Myelin

Answer Explanation

Axons carry action potential in the direction of synapses. Axons are the long, fiber-like structures that carry information from neurons. Electrical impulses travel along the body of the axons, some of which are up to a foot long.

A neuron is a type of cell that is responsible for sending information throughout the body. There are several types of neurons, including muscle neurons, which respond to instructions for movement; sensory neurons, which transmit information about the external world; and interneurons, which relay messages between neurons. Myelin is a fat that coats the nerves and ensures the accurate transmission of information in the nervous system.
Q #9: Which section of the digestive system is responsible for receiving chyme and further digesting it?

A. The large intestine

B. The duodenum

C. The jejunum

D. The gallbladder

Answer Explanation

The duodenum is the first section of the small intestine. It receives partially digested food (also called chyme) from the stomach, further digesting it with the help of enzymes released by the gall bladder. Then, the food enters into the jejunum, then the ileum. The large Intestine's main function is the reabsorption of water into the body to form solid waste. It also allows for the absorption of vitamin K produced by microbes living inside the large intestine.
Q #10: Which of the following are formed when the plasma membrane surrounds a particle outside of the cell?

A. Golgi bodies

B. Rough endoplasmic reticulum

C. Secretory vesicles

D. Endocytic vesicles

Answer Explanation

Endocytosis is a process by which cells absorb larger molecules or even tiny organisms, such as bacteria, that would not be able to pass through the plasma membrane. Endocytic vesicles containing molecules from the extracellular environment often undergo further processing once they enter the cell.

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Which of the heart chambers is the largest?

More Questions on TEAS 7 Science

Q #1: Which of the following orbitals is the last to fill?

Answer Explanation

Q #2: There are three Insects that are being compared under a microscope. As a scientist, you decide that measuring them would be an important part of recording their data. Which unit of measurement would best for this situation?

Answer Explanation

Q #3: Which of the following is exchanged between two or more atoms that undergo ionic bonding?

Answer Explanation

Q #4: Which of the following is true regarding adipocytes?

Answer Explanation

Q #5: Which of the heart chambers is the largest?

Answer Explanation

Q #6: Given that there are over 100 million residential addresses in the United States, which of the following best describes a flaw of this survey as it is described?

Answer Explanation

Q #7: Where is the scapula in relation to the olecranon?

Answer Explanation

Q #8: Which structure of the nervous system carries action potential in the direction of a synapse?

Answer Explanation

Q #9: Which section of the digestive system is responsible for receiving chyme and further digesting it?

Answer Explanation

Q #10: Which of the following are formed when the plasma membrane surrounds a particle outside of the cell?

Answer Explanation

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