Zadanie 2b
Describe why polypeptides can show an enormous diversity of sequences.
Proteins
Umiejętności w tym dziale
Umiejętności z tego działu sprawdza 29 zadań wzorowanych na arkuszach IB z lat 2022–2026. Dział pojawia się w 23 z 57 arkuszy w bazie.
Zadania z tego działu: 29 Otwórz w wyszukiwarce z filtrami
Zadanie 3
The model joins three amino acids. Which statements about its product are correct? I. Peptide linkages connect its residues. II. Adding water to break bonds produced the chain. III. Its side chains need not all have the same structure. A. I and III only B. II…
- Materiał graficzny
Zadanie 3
A student obtains all dietary protein from plants. Which statement about the student’s amino acid supply is correct? A. Human cells can synthesize some amino acids by modifying other organic molecules B. Every amino acid must be taken unchanged from an animal…
Zadanie 6
Proteins contribute to structure, recognition and defence. (a) Outline the general organization of a peptide. (b) Describe the four ABO blood groups and their molecular/genetic basis. (c) Explain the adaptive immune response to invading pathogens.
Zadanie 3
Which process links two amino acids to make a dipeptide? A. Hydrolysis producing a glycosidic bond B. Condensation producing a peptide bond C. Oxidation producing a hydrogen bond only D. Osmosis producing a phosphodiester bond
Zadanie 4
A person follows a diet containing no animal products. What must the diet supply for normal synthesis of body proteins? A. A sufficiently varied supply of all essential amino acids B. Only one amino acid, provided in excess C. More cholesterol than any…
Zadanie 2a
Distinguish essential from non-essential amino acids in the human diet.
- Materiał graficzny
Zadanie 3
A nutrition table classifies leucine and threonine as essential, and alanine and glutamate as non-essential. Which conclusion follows for a healthy adult? A. Threonine needs a dietary supply B. Leucine is synthesized in adequate quantities from any other amino…
Zadanie 1
Analysis detects the following elements in two purified biological molecules. Which identification is consistent with both sets? Sample | Detected elements R | C, H, O, P S | C, H, O, N Assume each sample is one of the ordinary molecules listed. A. R: starch;…
Zadanie 4
Which outlined region contains the part of this amino acid that varies among the standard amino acids? A. Region R B. Region P C. Region S D. Region Q
- Materiał graficzny