The chemical __________ enters the mitochondria

to continue respiration.
a. phosphoglyceraldehyde (PGAL)
b. oxaloacetate
c. phosphoglycerate (PGA)
d. pyruvate
e. citrate


Answer: d

Biology & Microbiology

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To exert its effects on gene regulation in a cell, a steroid hormone must interact with a variety of proteins and cell structures along the way. Check the box for each interaction partner.  

_____  carrier protein _____  microtubules _____  plasma membrane _____  hormone receptor _____  nuclear membrane _____  GPCR Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about steroidhormones? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

What is one disadvantage of asexual reproduction?

A) There's no need to find a partner to reproduce. B) Organisms that are isolated from other organisms can use this method of reproduction. C) There's not much ability to adapt to environmental change. D) Organisms that don't move can use this method of reproduction.

Biology & Microbiology

Which of the following antimicrobial agents is the most toxic to humans?

A) 70% alcohol B) ethylene oxide C) quaternary ammonium compounds D) chloramines E) iodophors

Biology & Microbiology

T or F: A relative angle is also referred to as a joint angle

What will be an ideal response?

Biology & Microbiology