How are proteins, lipids, and polysaccharides similar? (1 point)
A. They contain the same atoms and types of bonds between atoms. ******
B. They are natural polymers composed of repeating monomeric units.
C. They are formed during exergonic metabolic reactions in a cell.
D. They have characteristics similar to the elements making them up.
4. Which of the following statements about enzymes is not true? (1 point)
A. Enzymes work best at a specified pH.
B. All enzymes have the same shape as their substrates. ******
C. Enzymes are proteins.
D. The shape of an enzyme allows it to do its job.
Can u plz tell me if I am right or wrong. Thanks :).
Biology A Final Exam Practice
1. A, C, and D.
2. D
3. B
4. B
5. D
6. D
7. C
8. A
9. B
10. C
11. C
12. A
13. C
14. D
15. A
16. A
17. A
18. A
19. B
20. C I am really sure yall will make a 100% I missed 1 question and made a 95. 5%. That was question number 3 I choose A but it was B.
1. A, C, and D
2. D
3. B
4. B
5. D
6. D
7. C
8. A
9. B
10. C
11. C
12. A
13. C
14. D
15. A
16. A
17. A
18. A
19. B
20. C
Your first question is wrong because there is 6 carbon atoms in any form of polysaccharide(well not all but most) so it's B, because they're all organic polymers made up of a repeating pattern,
Your second question is correct
I'm just a girl is right on her last one!
I'm surprised as of the time I posted this those actually are all correct
are these answers right :0
For the first question, you have selected the correct answer.
A. They contain the same atoms and types of bonds between atoms.
Proteins, lipids, and polysaccharides are all macromolecules found in living organisms. While they have different structures and functions, they do share similarities. One of these similarities is that they are all composed of carbon, hydrogen, and oxygen atoms. Proteins also contain nitrogen atoms, while lipids have a higher proportion of hydrogen and fewer oxygen atoms. Additionally, each of these molecules has different types of bonds between atoms, such as peptide bonds in proteins, ester bonds in lipids, and glycosidic bonds in polysaccharides.
For the second question, you have also selected the correct answer.
B. All enzymes have the same shape as their substrates.
Enzymes are proteins that act as catalysts in biological reactions. They help speed up chemical reactions by reducing the activation energy required for the reaction to occur. Enzymes bind to specific molecules called substrates, and the reaction takes place at the active site of the enzyme. While enzymes can have specific shapes that allow them to bind to substrates, they do not have the same shape as their substrates. The enzyme's shape and active site are complementary to the shape of the substrate, allowing for specificity and efficient catalysis.