NeSA NeSA Science

Question 1

Which organelle is known as the 'powerhouse of the cell' because it produces ATP through cellular respiration?

Accepted Answer

Mitochondria

Answer

Mitochondria convert glucose and oxygen into ATP (adenosine triphosphate), the cell's main energy currency, through the process of cellular respiration.

Question 2

During photosynthesis, plants use carbon dioxide, water, and sunlight to produce glucose and which other substance?

Accepted Answer

Oxygen

Answer

Photosynthesis produces glucose for the plant and releases oxygen as a byproduct, which is essential for most living organisms on Earth.

Question 3

Which type of rock is formed when molten magma cools and solidifies?

Accepted Answer

Igneous

Answer

Igneous rocks form when magma (underground) or lava (above ground) cools and hardens; examples include granite and basalt.

Question 4

What is the term for the total amount of energy an object has due to both its motion and its position?

Accepted Answer

Mechanical energy

Answer

Mechanical energy is the sum of kinetic energy (energy of motion) and potential energy (stored energy due to position), and it describes the energy of moving or positioned objects.

Question 5

Which layer of Earth's atmosphere contains the ozone layer that absorbs harmful ultraviolet radiation?

Accepted Answer

Stratosphere

Answer

The stratosphere, extending from about 12 to 50 km above Earth's surface, contains the ozone layer that shields life on Earth from harmful UV radiation.

NeSA - Nebraska State Accountability Practice Test

NeSA - Nebraska State Accountability Practice Test

NeSA NeSA Science