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Science 8 Mid quarter 4 > w3 > Flashcards

w3 Flashcards

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Biology 101 flashcards
1
Q

The production of new cells to bring about growth, replacement of damaged cells and the production of new generations of individuals among some groups of organisms can happen through one of the wonderful processes taking place in the body of living things—-

A

Cell division

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2
Q

2 kinds of cell division

A

Mitosis and Meiosis

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3
Q

Body cells in which mitosis happens

A

Somatic cells

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4
Q

Responsible in the increase in weight and height of the baby girl as she grew and developed into a teenager.
It is also responsible for the healing of the wound when a part of the body is accidentally cut or scratched.

A

Mitosis

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5
Q

Takes place in the ovaries and testes of animals, including humans.
It is responsible for the formation gametes or sex cells-sperm cell and egg cell.

A

Meiosis

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6
Q

New cells are formed through—-

A

Cell division

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7
Q

New cells are formed through cell division. This is one important breakthrough that was discovered by:

A

Rudolf Virchow

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8
Q

In what year did Rudolf Virchow made his discovery?

A

1858

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9
Q

What was Rudolf Virchow’s occupation?

A

German Pathologist

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10
Q

The process of cell division is repeated over and over in a process called:

A

Cell Cycle

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11
Q

Described as the resting stage, resting because the cell is not dividing but is very active in performing metabolic activities.

A

Interphase

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12
Q

In this stage of mitosis, the nuclear membrane and nucleolus begin to breakdown.

A

Prophase

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13
Q

In Prophase, the chromatins change until they become double-stranded and are called

A

Chromatids

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14
Q

The double-stranded chromosomes are connected at one point called—

A

Centromere

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15
Q

In this stage of mitosis, the double-stranded chromosomes called chromatids align themselves at the equator of the cell.

A

Metaphase

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16
Q

Structure in centromere that attaches each chromatid to the spindle

A

Kinetochore

17
Q

In this stage of mitosis, forces originating from the poles pull the chromatids to move. Consequently, the centromere splits, separating the chromatids into new, single-stranded chromosomes.

A

Anaphase

18
Q

the final stage of mitosis. The chromosomes now have reached the opposite poles.

A

Telophase

19
Q

What stage does mitosis and meiosis have in common and are similar?

A

Prophase

20
Q

The metaphase stage of mitosis and meiosis are the same except:

A

In meiosis, there is a pairing of homologous chromosomes, forming a tetrad

21
Q

Homologous chromosomes

A

Synapsis

22
Q

One set of chromosomes(ex: gametes)

A

Haploid

23
Q

In humans, haploids are

A

number=23

24
Q

Two sets of chromosomes(ex: all body cells except gametes)

A

Diploid

25
Q

In humans, diploids are

A

2n=46

Science 8 Mid quarter 4 (5 decks)

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