state the role of covalent bonds in joining smaller molecules together to form polymers
State the role of covalent bonds in joining smaller molecules together to form polymers
1 Answer
Questions and Answers For
AS and A Level Biology
202 Questions
1 Answer Define the terms monomer, polymer, macromolecule, monosaccharide, disaccharide and polysaccharide
define the terms monomer, polymer, macromolecule, monosaccharide, disaccharide and polysaccharide
1 Answer Describe and carry out a semi-quantitative Benedict’s test on a reducing sugar solution by standardising the test and using the results (time to first colour change or comparison to colour standards) to estimate the concentration
Describe and carry out a semi-quantitative Benedict’s test on a reducing sugar solution by standardising the test and using the results (time to first colour change or comparison to colour standards) to estimate the concentration
1 Answer describe and carry out a test to identify the presence of non-reducing sugars, using acid hydrolysis and Benedict’s solution
Describe and carry out a test to identify the presence of non-reducing sugars, using acid hydrolysis and Benedict’s solution
1 Answer State that cells use ATP from respiration for energy-requiring processes
State that cells use ATP from respiration for energy-requiring processes
1 Answer state that all viruses are non-cellular structures with a nucleic acid core (either DNA or RNA) and a capsid made of protein, and that some viruses have an outer envelope made of phospholipids
state that all viruses are non-cellular structures with a nucleic acid core (either DNA or RNA) and a capsid made of protein, and that some viruses have an outer envelope made of phospholipids
1 Answer compare the structure of a prokaryotic cell as found in a typical bacterium with the structures of typical eukaryotic cells in plants and animals
compare the structure of a prokaryotic cell as found in a typical bacterium with the structures of typical eukaryotic cells in plants and animals
1 Answer outline key structural features of a prokaryotic cell as found in a typical bacterium, including: • unicellular • generally 1–5 µm diameter • peptidoglycan cell walls • circular DNA • 70S ribosomes • absence of organelles surrounded by double membranes
outline key structural features of a prokaryotic cell as found in a typical bacterium, including: • unicellular • generally 1–5 µm diameter • peptidoglycan cell walls • circular DNA • 70S ribosomes • absence of organelles surrounded by double membranes
1 Answer How to draw cells from microscope slides and photomicrographs
How to draw cells from microscope slides and photomicrographs
1 Answer define resolution and magnification and explain the differences between these terms, with reference to light microscopy and electron microscopy
define resolution and magnification and explain the differences between these terms, with reference to light microscopy and electron microscopy
1 Answer
Welcome to our Q&A page! Here, you can find answers to frequently asked questions about our courses, features, and other topics related to our content. If you have a question that's not covered, feel free to ask, and we'll be happy to help!
Quiz Leaderboard
1st
Sourav
Score: 90%
Questions: 20
2nd
Priyanka
Score: 90%
Questions: 10
3rd
Nischal
Score: 90%
Questions: 10
4th
Vesnce
Score: 45%
Questions: 20
5th
Hector
Score: 40%
Questions: 10
6th
Hykss
Score: 20%
Questions: 10
Top Questions
-
drifting movement in fishes during migration
Drifting movement is a significant aspect of fish migration, particularly
Sourav Pan
-
classification of fishes based on migration in dams in india
Fish migration is a critical aspect of aquatic ecosystems, significantly
Sourav Pan
-
Do fish migrate in the winter?
Fish exhibit diverse migratory behaviors during winter, influenced by species-specific
Sourav Pan
-
Topoisomerase: – A. Separates the DNA strands at the origin – B. Keeps the single-stranded DNA regions from coming back together – C. Re-coils the DNA into a helix after replication is complete – D. Breaks DNA backbone to remove tension produced by the helicase – E. Breaks hydrogen bonds between DNA and the RNA primers
D. Topoisomerase breaks the DNA backbone to relieve supercoiling tension
Sourav Pan
-
What end overhangs?
The 3' end of the telomere strand typically has a
Sourav Pan
-
What kind of cells need cell replication of their telomeres?
Actively dividing cells, such as stem cells, germ cells, and
Sourav Pan
-
What percent of all human cancers have high levels of telomerase?
Around 85–90% of human cancers have high telomerase activity. This
Sourav Pan
- All Questions
BNO Team