Growth and development

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The zygote divides by mitosis to form an:
Embryo.
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Up to what stage in the growth of a human embryo are all of the cells identical?
Eight-cell stage.
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Cells at the two-cell stage of a human embryo are:
Cells at the two-cell stage of a human embryo are embryonic.
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Unspecialised cells in plants help cuttings to grow into fully developed plants. These plants are:
Plants grown from cuttings are clones.
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Which of the following is a difference between animals and plants?
Only plants grow throughout their lives.
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Unspecialised plant cells are grouped together in:
Unspecialised plant cells are grouped together in meristems.
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Which of the following best describes the effect of phototropism on a plant's chances of survival?
Phototropism increases the chance of a plant's survival.
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Phototropism works by making a plant stem grow:
Phototropism works by making a plant stem grow towards the light.
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Which of these best describes the effect of auxin on the size of cells in a plant's shoot? Increase or decrease.
Increase.
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If a plant shoot is illuminated from the right-hand side only, where will auxin accumulate in the shoot?
If a plant shoot is illuminated from the right-hand side only, auxin will accumulate on the left-hand side.
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The type of hormone that causes cell specialisation in plants is called:
Auxin.
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Which of these best describes the structure of DNA?
Double helix.
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Which type of cell division produces cells that are identical to their parent?
Mitosis produces cells that are identical to their parent.
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Which type of cell division produces cells that are identical to each other?
Mitosis produces cells that are identical to each other.
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Which type of cell division produces gametes?
Meiosis produces gametes.
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During the growth part of the cell cycle in mitosis, which of the following increases inside the cell?
Organelles.
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What happens next in mitosis when the two strands of DNA separate?
After the two strands of DNA separate, the chromosomes are copied.
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Which statement best describes what happens when cells divide by mitosis?
Copies of chromosomes separate.
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If a parent cell contains 46 chromosomes, how many chromosomes will a gamete contain?
23.
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Which statement best describes the chromosomes found in a zygote?
The chromosomes found in a zygote are best described as having a set from each parent.
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Where in a cell is the genetic code held?
Nucleus.
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Where in a cell are proteins made?
Cell proteins are made in the cytoplasm.
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How do the instructions to make proteins pass from genes to the place where proteins are made?
A copy of the gene carries the information to the place where proteins are made.
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How many different bases are used to make DNA?
4.
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Which statement about the bases found in DNA is true?
Bases always pair-up in the same way.
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Which of these molecules join to make proteins?
Amino acides join to make proteins.
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How many bases are used to code for each amino acid?
3.
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Which statement about amino acids in a particular protein is true?
They are arranged in a sequence.
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Which of these best explains how bases code for proteins?
The order of bases best explains how bases code for proteins.
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Which statement best describes the genes in specialised cells?
Genes in specialised cells are best described as some switched on, and some off.
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Insulin is a protein. In what state must the insulin gene be to produce insulin?
Insulin must be in a switched on state to produce protein.
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Other cards in this set

Card 2

Front

Up to what stage in the growth of a human embryo are all of the cells identical?

Back

Eight-cell stage.

Card 3

Front

Cells at the two-cell stage of a human embryo are:

Back

Preview of the front of card 3

Card 4

Front

Unspecialised cells in plants help cuttings to grow into fully developed plants. These plants are:

Back

Preview of the front of card 4

Card 5

Front

Which of the following is a difference between animals and plants?

Back

Preview of the front of card 5
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