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Which of the following statement(s) is/are CORRECT for antigen activated effector T cells?
P. CD4+ cells make contact with macrophages and stimulate their microbicidal activity.
Q. CD4+ cells make contact with B cells and stimulate them to differentiate into plasma cells.
R. CD8+ cells make contact with B cells and stimulate them to differentiate into plasma cells.
S. CD8+ cells make contact with virus infected cells and kill them.
Which of the following statements is/are true in reference to breakdown of glucose? (i) In the cytoplasm, glucose breaks down into pyruvate which has four carbon molecules (ii) Due to lack of oxygen, pyruvate gets converted to lactic acid (iii) In absence of oxygen, pyruvate gets converted to carbon dioxide and ethanol
In the question two statements are given, followed by two conclusions, I and II. Read all the conclusions and then decide which of the given conclusions logically follow/s from the given statements. Statements: All white blood cells are red blood cells. Some blood cells are red blood cells. Conclusions: I. All blood cells are red blood cells, is a possibility. II. Some red blood cells are not blood cells.
In the reduction of pyruvate to lactate, which of the following is regenerated?
In anaerobic lactic acid fermentation by bacteria, glucose is partially oxidised to pyruvate followed by reduction to lactate
Which of the following statements are NOT true? a) The number of cells in an elephant is more than number of cells in a monkey b) The size of cells in an elephant is larger than size of cells in a monkey c) Shape of cells in an elephant is different than shape of cells in a monkey
Consider the following statements regarding the Structure of cells: 1. Both Animal & Plant cells comprise amyloplast within the cell membrane. 2. Plant cells have plasmodesmata channels whilst animal cells do not. 3. Vacuoles in both plant cells & animal cells are always filled with solid substances. Which of the statement given above is/are not correct? 
Which of the following statements are correct regarding common differences between plant and animal cells?
1. Plant cells have cellulose cell wall, while animal cells lack it.
2. Plant cells lack plasma membrane, while animal cells have it.
3. Mature plant cell have a large vacuole, while animal cells have numerous small vacuoles.
Which of the following is not an inhibitor of pyruvate dehydrogenase in conversion pyruvate to acetyl CoA?
Which of the following statement about fuel cells are correct? Statement 1: Galvanic cells that are designed to convert the energy of the combustion of fuels like hydrogen, methane, methanol, etc. directly into electrical energy are called fuel cells. Statement 2: One of the most successful fuel cells uses the reaction of hydrogen with oxygen to form water.