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Biology Wrong questions CB
Terms in this set (20)
A lion has 38 chromosomes in each of its body cells
Will the lion have more or less than 38 genes in each of its cell
More because each chromosome contains multiple genes
In which part of the cell is mRNA made?
c) amino acids
Describe mRNA's movements within a cell once it has been made
It moves out of the nucleus to a ribosome in the cytoplasm
Describe what happens to a chain of amino acids once it has been assembled
It folds up into a unique shape
What is meant by the term genetic engineering?
moving genetic information from one organism to another
The host bacterial cell can be replicated many times suggest why this would be done
So that lots of bacteria all containing gene A would be produced
Most of chemical reactions in a cell take place where?
What is the function of the vacuole
Maintaining cell Ph
Which of these cannot diffuse through the cell membrane
d) Carbon dioxide
If an animal cell is surrounded by a very high water concentration it is likely to?
a) Burst, as water will move out of it
b) Burst, as water will move into it
c) Shrink, as water will move out of it
d) Shrink, as water will move into it
What part of the cell is fermentation complete in?
Give one way energy released by respiration is used
cell division, protein synthesis, muscle contraction
If a plant cell is placed in a strong salt solution what will happen?
It will become plasmolyzed due to water loss
Does aerobic respiration require light energy?
Stem cells are specialised/unspecialised cells
Which food molecules are absorbed into the capillaries of the villus?
Amino acids and glucose
What is an ecosystem?
All the organisms living in a particular area and the non-living components (with which they interact)
Explain why a hormone only works on its target cell
the hormone and receptor (proteins) have complementary shapes
State the name given to a section of DNA which codes for a protein.