Which protein complex allows hydrogen ions to rush out of the thylakoid, providing energy that can be used to make a molecule?

A. photosystem I

B. photosystem II

C. ATP synthase

D. the hydrogen pump

This diagram shows how seed plants are grouped. Which is the missing label?

There are four levels of protein structure. these figures show primary, secondary, tertiary, and quaternary protein structure. which level (s) of protein structure may be stabilized by covalent bonds?

During a football game, a young man suffers an injury to his spinal cord at the first thoracic vertebrate. What major functions could be lost due to his injury? Blinking Chewing Swallowing Pushing

Distinguish between phagocytosis and pinocytosis?

In which direction is the net movement of water here?

The process of replication is the same for all living things because? A) The structure of the DNA is the same for all living things B) The DNA base pairs can pair up any way they choose C) All living things have the same number of chromosomes D)

You will need to incubate your test wells for 15 minutes twice. Which two of the following describe the conditions under which you will incubate the wells? a. First incubation at 37ºC; second at room temperature. b.

Which is a property of gold?

Which level of organization is the highest? a. tissue b. an organ c. an organism d. an organ system?

The diagram below shows an undisturbed rock. Which layer is likely to have the remains of an organism most similar to the organism's present-day form? Layer A Layer B Layer C Layer D