MCAT

Electrons normally exist in the lowest energy state called _____.

• ground state

• excited state

• stationary state

• none of these

Bohr's model of an atom is also called as _____.

• Nuclear Model

• Plum pudding model

• Solid sphere model

• Planetary Model

Which subatomic particle is negatively charged?

• electron

• neutron

• positron

• proton

Which subatomic particle has no charge?

• electron

• neutron

• positron

• proton

What is a primary reason for using models in scientific research?

• To eliminate the need for experiments

• To simplify complex phenomena for better understanding

• To ensure all hypotheses are correct

• To replace theoretical frameworks

Tags

NGSS.HS-ETS1-4

In order to have an eclipse, the Moon, Sun and Earth have to be?

• Below each other

• Above each other

• In alignment

Tags

NGSS.MS-ESS1-1

Which of the following is a fundamental concept tested on the MCAT related to the structure of atoms?

• Electron configuration

• Photosynthesis

• Plate tectonics

• Newton's laws

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the primary function of enzymes in biological reactions, a topic often covered in the MCAT?

• To provide energy

• To act as a catalyst

• To change the reaction products

• To increase the temperature

In the context of the MCAT, which of the following best describes the role of the mitochondria in cells?

• Protein synthesis

• Photosynthesis

• Energy production

• Cell division

Tags

NGSS.HS-LS1-7

Which scientific principle is essential for understanding chemical reactions, as tested on the MCAT?

• Conservation of mass

• Theory of relativity

• Quantum entanglement

• Evolution

Tags

NGSS.HS-PS1-7