QUIZ 7 Flashcards

(55 cards)

1
Q

Cell Division Allows Organisms To…

A

Transfer Genetic Material To Offspring

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2
Q

Unicellular Generates A New

A

Organism

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3
Q

Multicellular Produces New

A

Cells For OVERALL Cell Development

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4
Q

In order to divide a cell, a cell needs to

A

duplicate/divide genetic content to it’s 2 daughter cells

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5
Q

Cell cycle is a series of

A

divisions and duplications

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6
Q

Interphase is __% of a cell’s life

A

78%

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7
Q

List the 3 parts of Interphase

A

G1, S, G2

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8
Q

In G1, cells

A

Grow

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9
Q

In S phase, cells

A

Replicate the genome

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10
Q

In G2, all protiens are

A

synthesized

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11
Q

Cell Division includes what 2 procces’s

A

Meiosis and Mitosis

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12
Q

List the 5 phases of Mitosis

A

Prophase, Prometaphase, Metaphase, Anaphase, Telophase

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13
Q

Stroma

A

Fluid filled soace

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14
Q

Chlorophyll absorbs ___ & ___, but reflects ___

A

red & blue, green

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15
Q

light-independent reactions take place in the

A

stroma

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16
Q

What is photosynthesis

A

the process that converts sunlight energy into a simple sugar called glucose

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17
Q

glucose can be used as a

A

short-term energy source or to build more complex carbohydrates like starches for long-term energy storage

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18
Q

Also known as primary producers, they provide the energy necessary to the organisms that eat them, which are known as consumers

A

Autotrpohs

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19
Q

Organisms that can photosynthesize are rather

A

diverse such as cynobacteria

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20
Q

In eukaryotic cells, photosynthesis takes place in an organelle called the

A

chloroplast

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21
Q

Chloroplasts appear green due to its high content of the pigment

A

chlorophyll

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22
Q

Pigments are molecules that absorb

A

light at certain wavelengths

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23
Q

The light that is not absorbed by a pigment is reflected

A

visible light that can be observed as the color of the pigment

24
Q

Photosynthesis consists of two pathways, which are known as the

A

light-dependent and light-independent reactions and occur at distinct locations within chloroplasts

25
These organelles contain three membranes:
outer membrane, inner membrane, and the innermost thylakoid membrane
26
What does the innermost thylakoid membrane do
forms long, disc-shaped folds within the chloroplast
27
The light-dependent reactions start when the energy in sunlight
excites the electrons of chlorophyll pigments that are embedded within the thylakoid membrane
28
These high-energy electrons are then passed from one electron carrier molecule to another within the thylakoid membrane, collectively known as the
electron transport chain
29
Each transfer within the electron transport chain takes the electron to a ___ ___, releasing ___
lower state, energy
30
energy released is harnessed to synthesize small, energy-rich molecules such as
ATP OR NADPH
31
The lost electron of the chlorophyll is replaced through
hydrolosis
32
Define hydrolosis
means water splitting
33
CO2 flows from one reservoir to another at a relatively constant pace
Carbon sequestration
34
Changes in the CO2 flow rate can shift the
balance of it among resevoirs
35
fundamental to all living organisms and required for growth and development
cell division
36
cell division allows organisms to
transfer genetic material to their offspring
37
For a unicellular organism, cellular division generates
a completely new organism
38
For multicellular organisms, cellular division produces
new cells for the general development of the overall organism
39
Reproduction of multicellular organisms requires
cell division to create reproductive cells
40
About 78% of a cell’s life is spent in
interphase
41
Interphase itself contains three subphases
Gap 1, S Phase, Gap 2
42
During G1, cells
actively grow
43
During S Phase the cell
replicates its entire genome
44
In the Gap 2 Phase,
all the necessary proteins for cell division are synthesized
45
Somatic or non-reproductive cells produce ___ ___ via ___ ___
daughter cells, mitotic divison
46
Mitosis is the nuclear division and consists of five stages:
prophase, prometaphase, metaphase, anaphase, telophase
47
During prophase
duplicated DNA molecules condense into tightly-packed chromosomes, while microtubules form spindles
48
The nuclear envelope dissolves in
prometaphase
49
. During metaphase, chromosomes
that are connected to spindles line up along the equator of the cells
50
During anaphase, sister chromatids are
pulled to the opposite pole of the cell
51
Finally, during telophase, new nuclear envelopes
are formed around both groups of chromosomes
52
After nuclear division is completed, cytoplasm around each nucleus
separates from one another via cytokinesis, resulting in two identical daughter cells
53
what process is specific to reproductive cells
meiosis
54
Meiosis produces
4 daughter cells each with only half the genetic content of the parent cell
55
External regulation assures the
necessity of the division