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science > 2024 semester 1 exam > Flashcards

2024 semester 1 exam Flashcards

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Biology 101 flashcards
1
Q

What does the M in mrsgren stand for

A

Movement

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2
Q

What does the R in mrsgren stand for

A

Respiration

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3
Q

What does the S in mrsgren stand for

A

sensitiveity

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4
Q

What does the G in mrsgren stand for

A

Grow

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5
Q

What does the R in mrsgren stand for

A

Reproduction

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6
Q

What does the E in mrsgren stand for

A

Excreat

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7
Q

What does the N in mrsgren stand for

A

Nutrients

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8
Q

What does the term fossil fuel mean

A

Decomposing of flora and forna from the carnivourus period

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9
Q

What is diffusion

A

The process of particals moving from high concentration to low concentration

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10
Q

What are the similaties between animal and plant cells

A

Similarties:
A membrane-bound nucleus, which contains the DNA.
A plasma membrane or cell membrane.
Cytoplasm in which other organelles are suspended.
Nucleolus.
Endoplasmic reticulum (ER)
Ribosomes.
Mitochondrion.
Golgi bodies or Golgi apparatus.
eukaryotic cells

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11
Q

What are the diffrences between animal and plant cells

A

Animal cells have centrioles, centrosomes (discussed under the cytoskeleton), and lysosomes, whereas plant cells do not.
Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not.

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12
Q

What type of cell doesnt conatin a nucleus

A

Prokaryoties, red blood cells

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13
Q

Function of cell membrane

A

multilayered permibale barrier that hold the organells inside the cell.

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14
Q

Function of cytoplasm

A

the liquid inside the cell holding the orgaelle in place. Also glueing one molecule to another

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15
Q

function of vacuole

A

membrane bound cell organelle that is generally small and helps hide away waste products

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16
Q

function of chloroplasts

A

provides plants energy via photo synthesis

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17
Q

photosynthesis equation

A

light
carbon dioxide+water=glucose+oxygen

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18
Q

function of mitochondria

A

double membrane bound organelle that is the powerhouse of the cell. converts food into energy via respiration

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19
Q

respiration equation

A

glucose+oxygen=carbon dioxide+water+energy

20
Q

independant varible

A

what changes

21
Q

dependant varible

A

what is mesaured

22
Q

function of the nucleus

A

double membrane organelle that stores DNA tightly woven arund ground protein

23
Q

Function of the nucleolus

A

non membraned dense bundle of DNA and RNA producing and assembling the cells ribosomes

24
Q

What is DNA

A

a molecule that contains the genetic code that is unique to every individual.

25
Q

What is RNA

A

One of two types of nucleic acid made by cells

26
Q

Rough endoplasmic reticulum function

A

large membraneous organelle capabel of producing folding and disbuting and qaulity of proetin

27
Q

nucleare membrane function

A

acts as a barrier that seperates the nucleus DNA from the cytoplasm. it is made from phospholid bilayers

28
Q

Smooth endoplasmic reticulum function

A

large membrane organelle which lacks ribosomes. helps with metabolism steriod and hormone control

29
Q

why are seasons repeting each year

A

becuase the earth spinning on its axis

30
Q

how often does the earth rotate

A

every 24 hours

31
Q

how often does the earth rotae around the sun

A

every 365 days and a quater made up on febuary 29

32
Q

what causes the eartg seasons

A

axis

33
Q

what causes day and night

A

orbit around the sun with tilt

34
Q

how much is the eart tilted

A

23.5 degrees

35
Q

1st phases of the moon

A

new moon

36
Q

2nd phases of the moon

A

cresent moon

37
Q

3rd phases of the moon

A

3rd quater

38
Q

4th phases of the moon

A

gibbous

39
Q

5th phases of the moon

A

full

40
Q

6th phases of the moon

A

gibbous

41
Q

7th phases of the moon

A

1st quater

42
Q

8th phases of the moon

A

cresent

43
Q

True or Flase
It is summer in the northen hempishere when the sun is tilted towards it

A

true

44
Q

Solar eclipse verse lunar elecipse

A

a solar eclispe is where the moon blocks the sun and a lunar eclispse is where the erth blocks the sun

45
Q

what does a graph need

A

tiltle, axis tilte, x and y, even numbers spacing, start at zero.

science (2 decks)

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