The cell membranes of wall-less archaeons are strengthened by
A. glycoprotein or protein layers.
B. diglycerol ethers.
C. pseudomurein.
D. diglycerol tetraethers.
Answer: D
You might also like to view...
Which of the following is true of hydrogen peroxide?
A. It is a sterilant for inanimate objects and is quickly inactivated on living tissue. B. It leaves a toxic residue. C. It is broken down by catalase into water and oxygen. D. It is even more effective when used in combination with peracetic acid. E. It is a sterilant for inanimate objects and is quickly inactivated on living tissue; it is broken down by catalase into water and oxygen; AND it is even more effective when used in combination with peracetic acid.
Your professor asks you to explain the difference between a tendon and a ligament. How do you answer?
A. Tendons secure muscles to other muscles and ligaments secure bones to other bones. B. Tendons and ligaments have the same function but are found in different areas of the body. C. Tendons secure muscles to bones and ligaments secure muscles to other muscles. D. Tendons are just enlarged ligaments. E. Tendons secure muscles to bones and ligaments secure bones to other bones.
To be useful to scientists, a hypothesis must be ________; in other words, the hypothesis must be able to be confirmed or discredited
Fill in the blank with correct word.
Plant cells ________
A) do not need chloroplasts because their mitochondria meet their energy needs B) have chloroplasts and mitochondria C) use carbon dioxide but do not use oxygen D) do not need mitochondria because their chloroplasts meet their energy needs