HiSET Science: Life Science Practice Test

Question 1

Which organelle is responsible for producing ATP through cellular respiration in eukaryotic cells?

Accepted Answer

Mitochondria

Answer

Mitochondria are the powerhouses of the cell, generating ATP through aerobic cellular respiration via the Krebs cycle and electron transport chain.

Question 2

Which process do plants use to convert light energy into chemical energy stored in glucose?

Accepted Answer

Photosynthesis

Answer

Photosynthesis uses light energy, water, and carbon dioxide to produce glucose and oxygen, occurring primarily in chloroplasts.

Question 3

What is the term for the process by which a cell divides to produce two genetically identical daughter cells?

Accepted Answer

Mitosis

Answer

Mitosis is the cell division process in eukaryotes that produces two genetically identical diploid daughter cells, used for growth and tissue repair.

Question 4

Which type of molecule carries the genetic instructions from the nucleus to the ribosomes?

Accepted Answer

mRNA

Answer

Messenger RNA (mRNA) carries the genetic code transcribed from DNA in the nucleus to the ribosomes in the cytoplasm, where it serves as a template for protein synthesis.

Question 5

In Mendel's experiments, what term describes a trait that is hidden when a dominant trait is present?

Accepted Answer

Recessive

Answer

A recessive trait is masked when a dominant allele is present. It only shows in an individual who inherits two copies of the recessive allele (homozygous recessive).

HiSET - High School Equivalency Test Practice Test

HiSET - High School Equivalency Test Practice Test

HiSET Science: Life Science Practice Test