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It’s Alive!!! Or Is It?

It’s Alive!!! Or Is It?. Science Test Notes Chapter 2 7 th Grade. It is not true that proteins are the main source of energy for cells. Living things carry out the chemical activities of life by using energy. Nucleic acids are not used by cells for energy storage.

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It’s Alive!!! Or Is It?

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  1. It’s Alive!!! Or Is It? Science Test Notes Chapter 2 7th Grade

  2. It is not true that proteins are the main source of energy for cells. • Living things carry out the chemical activities of life by using energy. • Nucleic acids are not used by cells for energy storage.

  3. All living things grow during parts of their lives. • The subunits of proteins are called nucleotides.

  4. All living things are composed of one or more cells. • The human body is composed of about 70% water.

  5. When a duck dives underwater, its inner eyelids sense the water and cover the duck’s eyes. To the eyelid, water is a stimulus. • The molecule that provides most of the energy for cellular processes is called ATP.

  6. DNA is not a stimulus that living things sense and respond to. • Potato plants store extra sugar as starch. • DNA is a nucleic acid.

  7. Most of the chemical reactions involved in metabolism require water. • All organisms grow and develop. • Sound is not a basic need of most organisms.

  8. All organisms have cells that contain DNA. • Sexual reproduction produces offspring that share traits from both parents. • The smallest functional and structural unit of life is the cell.

  9. The maintenance of stable internal conditions is called homeostasis. • Organisms carry out chemical activities of life by using energy.

  10. DNA is a nucleic acid molecule. • All organisms do not share the ability to taste and smell.

  11. Gravity, sound, and light are all stimuli that living things can sense and respond to. • The hydra reproduces through asexual reproduction.

  12. Take a 2 Minute Break

  13. The major energy-carrying molecule in the cell is ATP.

  14. Phospholipid molecules form much of the cell membrane.

  15. Have a Nice Day

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