which type of energy is possessed by an object in motion
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ATI TEAS 7

Mometrix TEAS 7 science practice test

1. What type of energy does an object in motion possess?

Correct answer: B

Rationale: The correct answer is B. Kinetic energy is the energy possessed by an object in motion. When an object is in motion, it has the ability to do work due to its motion, which is known as kinetic energy. Potential energy, choice A, refers to stored energy that has the potential to do work but is not related to motion. Thermal energy, choice C, is related to the temperature of an object, not its motion. Chemical energy, choice D, is energy stored in the bonds of chemical compounds and is not directly related to an object's motion.

2. In the process of osmosis, the solvent moves from an area of...

Correct answer: D

Rationale: In the process of osmosis, solvent molecules move from an area of high solute concentration to low solute concentration. This movement occurs to equalize the solute concentrations on both sides of the semi-permeable membrane. As water tends to move towards higher solute concentrations, the solvent moves in this direction to balance the concentrations and establish equilibrium. Choices A, B, and C are incorrect because osmosis involves the movement of solvent, not solute, and it moves towards the area of higher solute concentration, not lower. Therefore, the correct answer is option D.

3. Which of the following is not a biological macromolecule?

Correct answer: D

Rationale: Glucose is a monosaccharide, which is a simple sugar and not a macromolecule. Glycoproteins, DNA, and phospholipids are all examples of biological macromolecules. Glycoproteins are proteins covalently bonded to carbohydrates, DNA is a nucleic acid, and phospholipids are lipids that contain a phosphate group.

4. Which of the following structures is unique to eukaryotic cells?

Correct answer: B

Rationale: Nuclei are structures that are unique to eukaryotic cells. Prokaryotic cells lack a defined nucleus, and their genetic material floats freely in the cytoplasm. Eukaryotic cells have nuclei that house the genetic material in the form of chromosomes, separated from the cytoplasm by a nuclear membrane. This distinct organelle is a key feature that sets eukaryotic cells apart from prokaryotic cells. Cell walls (Choice A) are found in plant cells, fungi, and some prokaryotes but are not unique to eukaryotic cells. Cell membranes (Choice C) are present in both prokaryotic and eukaryotic cells, serving as a barrier that encloses the cell contents. Vacuoles (Choice D) are membrane-bound organelles found in both plant and animal cells, making them not unique to eukaryotic cells.

5. What are the three layers of the skin?

Correct answer: B

Rationale: The correct answer is B: Epidermis, dermis, hypodermis. The three layers of the skin are the epidermis (outer layer), dermis (middle layer), and hypodermis (inner layer of fat and connective tissue). The hypodermis is also known as the subcutaneous tissue and is primarily composed of adipose (fat) tissue, providing insulation and padding to the body. Choice A is incorrect as 'subdermis' is not a recognized layer of the skin. Choice C is incorrect as 'dermis' is the middle layer, not the outer layer. Choice D is incorrect as the layer below the dermis is the hypodermis, not specifically an 'adipose layer.'

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