1. Active and passive transport are important processes that help the cell
A. Maintain the cellular membrane.
B. Metabolize materials .
C. Change size and shape.
D. Regulate the uptake and removal of materials. ^^^^
2. What type of molecule is transported across the cell membrane during osmosis
A. Water.^^^^
B. Any solute.
C. Sodium.
D. Oxygen.
3. What is the function of mRNA (messenger RNA)
A. MRNA functions as a template for DNA synthesis.
B. MRNA functions as a template for lipid synthesis.
C. MRNA function as a template for protein synthesis.^^^^
D. MRNA functions as a template for RNA synthesis.
4. In r n a, A pairs with____, and C pairs with ____.
A. C; A
B. G; T
C. U; G^^^
D. T; U
5. Compare organelles. Which one modifies, sorts, packages proteins for secretion
A. Lysosome.
B. Ribosome.
C. Golgi apparatus. ^^^^
D. Vacuole.
6. The muscular system is responsible for.
A. Transporting oxygen and nutrients.
B. Movement.^^^^
C. Receiving and processing stimuli.
D. Support.
7. The movement of food through the gastrointestinal tract by the contraction of the muscles is called.
A. Digestion.
B. Peristalsis. ^^^^
C. Absorption.
D. Churning.
8. Compare the roles of a human liver in the human pancreas in the digestion process.
A. Both assist the absorption of nutrients.
B. Both assist with the breakdown of fats. ^^^^
C. Both assist with the digestion of carbohydrates.
D. Both assist with the digestion of proteins.
9. Which body system is depicted in the image
A. Nervous.
B. Endocrine.
C. Circulatory. ^^^^
D. Muscular.
10. Which part of the body produces blood cells.
A. Periosteum.
B. Collagen.
C. Bone marrow.^^^^
D. Calcium.
11. Compare and contrast models. What is the disadvantage of using a dissected pig versus a 2d model of the human digestive system?
A. A dissected pigs inner structures slightly different than a human's.^^^^
B. A dissected pig does not reveal the arrangements of organs.
C. Dissected pigs inner structure is completely different than a human's.
D. A dissected pig less detailed than a 2d model.
^^^^ are the answers and all are correct for this practice
Trouble Maker is right!
just don't follow the ABCD's look at the actual answer he has... :) i got 100% on the practice
1d 2a 3c 4c 5c 6b 7b 8b 9c 10c 11a
Marinette all your answers are wrong
1. D. Regulate the uptake and removal of materials. Active and passive transport are important processes that help the cell regulate the uptake and removal of materials, such as nutrients and waste products.
2. A. Water. During osmosis, water molecules are transported across the cell membrane from an area of lower solute concentration to an area of higher solute concentration.
3. C. MRNA functions as a template for protein synthesis. Messenger RNA (mRNA) carries the genetic instructions from the DNA to the ribosomes, where protein synthesis occurs.
4. C. U; G. In RNA, adenine (A) pairs with uracil (U), and cytosine (C) pairs with guanine (G).
5. C. Golgi apparatus. The Golgi apparatus modifies, sorts, and packages proteins for secretion within the cell or for transport outside the cell.
6. B. Movement. The muscular system is responsible for movement in the body, allowing us to walk, talk, and perform other voluntary actions.
7. B. Peristalsis. The movement of food through the gastrointestinal tract by the contraction of the muscles is called peristalsis.
8. B. Both assist with the breakdown of fats. Both the liver and the pancreas play roles in the digestion process, but specifically, they both assist with the breakdown of fats.
9. C. Circulatory. The image depicts the circulatory system, which includes the heart, blood vessels, and blood, responsible for transporting oxygen, nutrients, and waste products throughout the body.
10. C. Bone marrow. Bone marrow, located within the bones, is responsible for producing red and white blood cells as well as platelets.
11. A. A dissected pig's inner structures are slightly different from a human's. While a dissected pig can provide valuable insights into the anatomy, there are slight differences between a pig and a human. A 2D model of the human digestive system can provide a more accurate representation of human anatomy and highlights the specific arrangements of organs.
To get the answer for question 1, you need to understand the functions of active and passive transport. Active transport is a process that requires energy to move molecules across the cell membrane, while passive transport is a process that does not require energy. Based on this understanding, you can determine that active and passive transport are important for regulating the uptake and removal of materials in the cell.
For question 2, you need to know what molecule is transported during osmosis. Osmosis is the diffusion of water across a selectively permeable membrane. Therefore, the correct answer is water.
To answer question 3, you need to understand the function of mRNA (messenger RNA). mRNA is a type of RNA that carries the genetic information from DNA in the nucleus of the cell to the ribosomes, where protein synthesis occurs. Therefore, the correct answer is that mRNA functions as a template for protein synthesis.
Question 4 asks about the base pairing in RNA. In RNA, adenine (A) pairs with uracil (U), and cytosine (C) pairs with guanine (G). Therefore, the correct answer is U pairs with G.
To answer question 5, you need to compare the functions of different organelles. The organelle that modifies, sorts, and packages proteins for secretion is the Golgi apparatus. Therefore, the correct answer is the Golgi apparatus.
Question 6 asks about the function of the muscular system. The muscular system is responsible for movement. Therefore, the correct answer is movement.
To answer question 7, you need to know the term for the movement of food through the gastrointestinal tract by the contraction of muscles. This term is peristalsis. Therefore, the correct answer is peristalsis.
For question 8, you need to compare the roles of the liver and pancreas in the digestion process. The liver assists with the breakdown of fats, while the pancreas also assists with the digestion of fats. Therefore, the correct answer is that both the liver and pancreas assist with the breakdown of fats.
Question 9 asks you to identify the body system depicted in an image. Without the image, it is difficult to provide a specific answer. However, if the image shows blood vessels, the correct answer would be the circulatory system.
To answer question 10, you need to know the part of the body that produces blood cells. This part is the bone marrow. Therefore, the correct answer is bone marrow.
Question 11 asks you to compare and contrast using a dissected pig versus a 2D model of the human digestive system. One disadvantage of using a dissected pig is that its inner structures may be slightly different from a human's. Therefore, the correct answer is that a dissected pig's inner structures are slightly different than a human's.