Science
Please Help with the last few questions on my Science Test.
11. Molecules naturally spread from areas of ______________ concentration to areas of ______________ concentration through a process called _____________.
1. high;low;diffusion
2.low;high;diffusion
3.high;low;active transport
4.low;high;passive transport
Use the work bank below to answer the questions that follow:
cells, tissue, organ, osmosis, tropism ,nucleic acids, organisms, motor neurons, enzymes, microscope, phyla, respiration, water, diffusion, energy, sensory neurons.
(Not All of these words are used)
12. ___________are the basic units of structure and function in living things.
13. A(n) ____________________ is a group of similar cells that perform a specific function in an organism.
14.____________________ are nerve cells that carry response information to muscles and organs.
15. Carbon dioxide and ____________ are outputs of cellular respiration.
16._________________ is essential to living things because many of the chemical reactions that occur in living things require it.
17. A student is observing a cell on a microscope slide and notices cell walls and membrane-bound organelles. the student concludes that the cells.
A. must be animal cells.
B. must be bacteria cells.
C. must be plant cells.
D. could be plant, animal, or bacterial cells.
18. (skip)
19. Contrast Mitochondria and chloroplast
11. The correct answer is 1. high;low;diffusion. In diffusion, molecules naturally move from an area of high concentration to an area of low concentration. This is due to the random motion of molecules.
12. The correct answer is cells. Cells are the basic units of structure and function in living things. They are the building blocks of all living organisms.
13. The correct answer is tissue. A tissue is a group of similar cells that perform a specific function in an organism. Different types of tissues combine to form organs.
14. The correct answer is motor neurons. Motor neurons are nerve cells that carry response information from the brain and spinal cord to muscles and organs, allowing them to carry out actions.
15. The correct answer is water. Carbon dioxide and water are outputs of cellular respiration, the process by which cells generate energy. In this process, glucose (a type of sugar) is broken down, and carbon dioxide and water are released as byproducts.
16. The correct answer is energy. Energy is essential to living things because many of the chemical reactions that occur in living organisms require energy. It is used for various processes, such as growth, movement, and reproduction.
17. The correct answer is C. must be plant cells. Plant cells are characterized by having cell walls and membrane-bound organelles. The presence of these structures indicates that the cells being observed are plant cells, as animal cells do not have cell walls and bacterial cells have a different cellular structure.
18. (skip)
19. Mitochondria and chloroplasts are both organelles found in eukaryotic cells, but they have different functions.
- Mitochondria: These organelles are involved in cellular respiration, which is the process of converting food (glucose) into usable energy (ATP). Mitochondria are often called the "powerhouses" of the cell because they generate the majority of the cell's ATP.
- Chloroplasts: These organelles are found in plants and algae cells and are responsible for photosynthesis. During photosynthesis, chloroplasts use sunlight, carbon dioxide, and water to produce glucose and oxygen. This process allows plants to convert sunlight into energy-rich molecules.
In summary, mitochondria produce energy through cellular respiration, while chloroplasts capture energy from sunlight through photosynthesis.
You don't get educated by having someone do your work for you.
Try Googling. For example, from Google:
a) Molecules. b) Particles. Diffusion. Diffusion is the net passive movement of particles (atoms, ions or molecules) from a region in which they are in higher concentration to regions of lower concentration. It continues until the concentration of substances is uniform throughout.