Huge Science Test Flashcards

(41 cards)

0
Q

What’s in many scientists think during the 1500s

A

That spontaneous generation was true

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1
Q

What’s the difference between unicellular and multicellular organisms

A

Multicellular has many cells unicellular has one cell

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2
Q

Why was Francisco ready important and what did he believe and try to prove

A

Trying to prove that spontaneous generation is not true he did this by putting meat in two jars, the one not covered got flies but the one covered didn’t have any flies in there

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3
Q

What are the needs of living things

A

Energy water living space and stable internal conditions

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4
Q

What’s homeostasis

A

The maintenance of stable internal conditions despite changes in surroundings

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5
Q

What’s the difference between magnification and resolution

A

Magnification makes object figure resolution makes the object clear

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6
Q

What are the rules of dealing with microscopes

A

Hold them a microscope with two hands and don’t touch the lens

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7
Q

What Happened in 1590

A

Microscopes were invented

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8
Q

Who is Robert Hooke

A

One of the first people to study cells he studied a cork and found tiny cells and it

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9
Q

Who is Anton Van Leeuwenhoek

A

He looked in a pond and found unicellular organisms and he made his own lenses

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10
Q

Who is Matthias Scleiden

A

Concluded that all plants are made of cells

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11
Q

Who is Rudolph Virchow

A

Propose that new cells are formed from existing cells

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12
Q

What is the cell theory

A

All living things are composed of cells cells are the basic unit of structure and function in living things all cells are produced from other cells

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13
Q

What is chromatin

A

Strains that contain genetic material the instructions that direct cells activities

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14
Q

What is the difference between the nucleolus in the nuclear membrane

A

The nucleolus protects the inside of the cell in the nuclear membrane protects the outside of the cell

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15
Q

Where are ribosomes made

A

In the nucleous

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16
Q

What is chloroplast

A

Organelles capture energy from sunlight and use it to produce food

17
Q

What is the cell wall

A

It protects the cell

18
Q

What is a vacuole

A

Stores water food waste products and other materials

19
Q

What is the cytoplasm

A

The area between the cell membrane and the nucleus

20
Q

What is ribosome

A

Produces protein

21
Q

No some facts about the bacteria cells

A

They are unicellular and have a cell wall and membrane and they also have no nucleus

22
Q

What is the flagella

A

It acts as a motor to the bacteria

23
Q

Difference between organic and inorganic compounds

A

Organic compounds contain carbon inorganic compounds do not contain carbon

24
What is protein
Proteins are large organic molecules made up of carbon hydrogen oxygen nitrogen and sometimes sulfur
25
What is carbohydrates
Carbohydrates are made up of carbon hydrogen oxygen
26
What is lipids
Let beds are made up of carbon hydrogen oxygen and lipids is where they store energy
27
What is nucleic acid made up of
Carbon oxygen hydrogen nitrogen and phosphorus and DNA which is genetic material
28
What is diffusion
Molecules moving from an area of high concentration to an area of low concentration
29
What is osmosis
Diffusion of water molecules through a selectively permeable membrane
30
Active transport
Movement of materials through a cell membrane using energy
31
What are the two stages of photosynthesis
The first stage is capturing the suns energy the second stage is making sugar or glucose
32
What is Pigments
Green colored chemical compound that absorbs light
33
Chlorophyll
Main pigment found in the chloroplasts of plants
34
Why is the stomata important
Small openings at the bottom of leaves which lets in carbon dioxide
35
What is the product of photosynthesis
Glucose and oxygen
36
What are the raw materials used for cellular respiration
Glucose and oxygen
37
What are the two stages of cellular respiration
First stage takes place in the cytoplasm where glucose molecules are broken down into smaller ones the second stage takes place in the mitochondria the molecules broken into even smaller one
38
How are photosynthesis and respiration related
Opposite processes, for photosynthesis carbon dioxide and water produce sugars and oxygen, (respiration) glucose and waterare used to produce carbon dioxide and water
39
What is the point of fermentation
Fermentation provides energy to the cell without using oxygen
40
Where does fermentation begin
In the cytoplasm