Q: What proteins span the entire plasma membrane? Choices: - sequence - amino acids - cytoplasm - transmembrane A:
transmembrane

Q: The term ion applies to entire molecules that are? Choices: - magnetic - positively charged protons - neutrally charged - electrically charged A:
electrically charged

Q: Q: What is the process by which plants capture the energy of sunlight and use carbon dioxide from the air (and water) to make their own food called? Choices: - spermatogenesis - photochemistry - atherosclerosis - photosynthesis A:
A: photosynthesis

Question: Q: What is the major source of warmth for earth? Choices: - the Moon - seasons - equator - the sun A:
Answer: the sun

*Question*
Q: What do you call the fixed point of a lever? Choices: - base - caliper - apex - fulcrum A:
**Answer**
fulcrum

Q: What kind of reactions absorb energy from their surroundings as they occur? Choices: - exothermic - hydrostatic - autotrophic - endothermic A:
endothermic