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Biology Lab 143 > Test 2 > Flashcards

Test 2 Flashcards

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1
Q

What are the 3 Domains of life?

A

Bacteria, Archaea, Eukarya

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2
Q

What Domain is prokaryotic cells a part of?

A

Bacteria and Archaea

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3
Q

What Domain is Eukaryotic cells a part of?

A

Eukarya

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4
Q

What are the cell shapes of bacteria?

A

Bacilli, Cocci, and Spirilla

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5
Q

What are two examples of cyanobacteria?

A

Oscillatoria and Gloeocapsa

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6
Q

What does the plasma membrane do?

A

regulates what passes into and out of the cell. Cell to cell recognition, connection and adhesion cell communication.

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7
Q

What does the Nucleus do?

A

Instruction for protein synthesis and cell reproduction contains genetic information.

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8
Q

What does the Nucleolus do?

A

Synthesis of RNA and ribosomes assembly.

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9
Q

What does the Ribosomes do?

A

It is the site of protein synthesis.

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10
Q

What does the Golgi apparatus do?

A

Packages protein for export from the cell; forms secretory vesicles.

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11
Q

What do lysosomes do?

A

Digests worn out organelles and cell debris; digests materials taken up by endocytosis.

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12
Q

What do Micro bodies do?

A

Isolates particular chemical activities from the rest of the cell?

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13
Q

What does the mitochondria do?

A

Power plants of the cell: sites of oxidative metabolism.

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14
Q

What does chloroplasts do?

A

It is the site of photosynthesis.

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15
Q

What does the cytoskeleton do?

A

It provides structural support; cell movement.

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16
Q

What do flagellas do?

A

It provides mobility or move fluids over surfaces.

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17
Q

What does the cell wall do?

A

It provides protection and support.

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18
Q

What does the rough ER do?

A

It synthesizes protein.

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19
Q

What does the smooth ER do?

A

It synthesis phospholipids and carbohydrates.

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20
Q

What cells are part of the Eukarya Domain?

A

Plants, Animals, protists, and Fungi

21
Q

What are 3 bacterial associations?

A

Diplo, Strepto, Staphylo

22
Q

What organelles are found in a plant cell but not animal cells?

A

cell walls, chloroplasts, central vacuole

23
Q

What organelles are found in animal cells and not in plant cells?

A

centrioles

24
Q

What is the study of cells called?

A

Cytology

25
Q

What components do both prokaryotic and Eukaryotic cells?

A

cell membrane, cytoplasm, and DNA

26
Q

What does the central vacuoles do?

A

Large membrane sacs involved in storage. (part of the plant cell)

27
Q

What does chloroplasts do?

A

It produces photosynthesis.

28
Q

What do centrioles do?

A

They help in cell division.

29
Q

What is bromian movement?

A

is the random motion of particles suspended in a fluid resulting from their collusion with fast- moving molecules in the fluids.

30
Q

What is passive transport?

A

Passive transport occurs when no energy is needed to assist the movement of substances across the membrane.

31
Q

What are the three types of passive transport?

A

simple diffusion, Facilitated diffusion, and Osmosis

32
Q

What is simple diffusion?

A

is the movement of molecules from a higher to a lower concentrate until all molecules are evenly distributed.

33
Q

What is facilitated diffusion?

A

It uses a carrier protein to move larger or charged molecules across the membrane.

34
Q

What factors affect passive transport?

A

size, polarity, temperature, and mass

35
Q

What types of molecules can move through the membrane Via passive transport?

A

Water, nonpolar small substances, and small gasses,

36
Q

What is osmosis?

A

is the diffusion of water across a selective permeable membrane due to concentration differences.

37
Q

Water movement is dependent on what?

A

the toxicity of the solution.

38
Q

What is active transport?

A

Movement across the membrane that requires energy. it needs a carrier protein and a form of ATP.

39
Q

What are some examples of Active transport?

A

Sodium- Potassium pump, coupled transport,

40
Q

What is tonicity?

A

It tells how much solute (solid) is present in a solution.

41
Q

What are Hypotonic solutions?

A

occurs when the solution has a lower concentration of solute and higher concentration of water.

42
Q

What is a hypertonic solution?

A

Occurs when there is a higher concentration of solute and a lower concentration of water.

43
Q

Substances with smaller molecular weight diffuse _____ than substances with higher molecular weight.

A

Faster

44
Q

What is a solvent?

A

It is the solid in a solution example (sugar and Salt)

45
Q

What is a solute?

A

Water in a solution.

46
Q

What are 3 characteristics of the cell membrane?

A

It has selective permeability, Made mostly of Phospholipids , Also contains protein, cholesterol and carbohydrates.

47
Q

What is dialysis?

A

separation of two solutes using a semipermeable membrane.

48
Q

What is the opening of a bacteria called?

A

Gullet

Biology Lab 143 (3 decks)

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