B5 Flashcards

What can be done to multicellular cells?

What are cells of the same type? Give an example of this.

What are organs? Give an example.

Explain the difference between a tissue and an organ.

What are organ systems?

What is a zygote?

Describe the cells in a human embryo up to the eight cell stage.

What happens to the cells after the eight eight cell stage?

Why are adult stem cells different to embryonic stem cells?

What are xylems and phloems, and what are their functions in plants?

What is the name given to any plant tissue that can produce new cells?

Why do plants continue to keep growing throughout their lives but animals stop at a certain point?

How can plants be cloned?

What are the advantages of taking cuttings?

How is root growth in plants promoted/increased?

What is a different way of cloning plants other than taking cuttings?

What is tissue culture?

What are the steps involved in tissue culture?

What are auxins?

What is phototropism?

What does it mean if a plant is positively or negatively phototropic?

Why do plants grow towards light?

Where are auxins found?

What happens if a plant is illuminated from one side?

What is mitosis?

What is the result of mitosis?

What happens before mitosis?

What is known as the events between and leading up to cell division, and cell division itself?

What are the main processes of the cell cycle?

What is meiosis?

What is the difference between an embryo and a foetus?

How many chromosomes do each type of sex cell contain?

What are chromosomes?

What is DNA?

What are the strands of DNA made from?

What types of bases are there?

What is the role of the genetic code?

Where is the genetic code carrying the instructions for protein synthesis found?

How can the genetic code reach the cytoplasm without the genes leaving the nucleus?

Where are proteins assembled?

What does the number and sequence of an amino acid determine?

What are base triplets?

What are mRNA's?

Where does protein synthesis occur?

What are the role of tRNA's?

Why are embryonic stem cells so different from adult stem cells?

What are the uses of embryonic stem cells?

Why do cells only produce certain proteins?

Where are adult stem cells found?

Why is the use of embryonic stem cells controversial?

Where are embryonic stem cells removed?

Why does therapeutic cloning overcome some ethical issues of using embryonic stem cells?