Biology Quiz

Carbohydrates are used to provide organisms with _____.

• structure

• energy

• warmth

• information

Which of the following is an organism whose cell(s) lack(s) membrane-bound organelles?

• nucleolus

• chromatin

• eukaryote

• prokaryote

Proteins are long chains or polymers made up of:

• nucleotides

• carbohydrates

• amino acids

• lipids

Which of the following environmental changes can cause an increase in the rates of reactions in cells?

• increased temperature

• decreased enzyme concentrations

• increase activation energy requirement

• decreased diffusion rates

Substances that are too large to be moved across the plasma membrane can be engulfed (taken in) with energy through the process of:

• diffusion

• endocytosis

• exocytosis

• osmosis

Which of the following is an example of a prokaryotic cell?

• animal cell

• bacterial cell

• fungal cell

• plant cell

Homeostasis is the maintenance of stable conditions within the body. Which of the following is a method of maintaining homeostasis in the human body?

• working in air conditioning

• shivering when cold

• eating balanced meals

• sleeping regularly

A student is making a model to demonstrate how cells respond to solutions with varying concentrations of salt and water. She soaked a kidney bean in distilled water until it started to swell. For the demonstration, she wants to put the swollen bean in a solution that would cause the bean to shrivel. In what kind of solution should she put the swollen bean?

• acidic

• basic

• hypertonic

• hypotonic

The function of the cell organelle circled in the cell diagram is to produce energy. What is the name of this organelle?

• golgi apparatus

• mitochondrion

• nucleus

• ribosome

The cell membrane drawing illustrates a small portion of the molecules that make up a cell membrane. The phospholipid molecules serve to:

• help cells recognize each other

• allow glucose molecules into the cell

• prevent the passage of certain molecules into the cell

• line up amino acids for protein synthesis