Biology Semester 1 Review

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a constant internal environment despite changes in external conditions.

Front

What are proteins?

Back

Proteins are macromolecules that perform a variety of functions in the body, including providing structural support, speeding up chemical reactions (as enzymes), and forming channels in cell membranes.

Front

How can you identify a biological female by looking at chromosomes?

Back

A biological female typically has two X chromosomes (XX) in their cells.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where it is translated into a protein.

Front

What amino acid is represented by the RNA codon GUA?

Back

The RNA codon GUA codes for the amino acid Valine.

Front

What is the function of carbohydrates in living organisms?

Back

Carbohydrates serve as a primary energy source and are also important for structural support in cells.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy and moves substances along their concentration gradient.

Front

What is the significance of mitosis?

Back

Mitosis is the process of cell division that results in two genetically identical daughter cells, essential for growth and repair.

Front

What are nucleic acids?

Back

Nucleic acids, such as DNA and RNA, are macromolecules that store and transmit genetic information.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms convert light energy into chemical energy in the form of glucose, using carbon dioxide and water.