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Biology > Lab test #1 > Flashcards

Lab test #1 Flashcards

(63 cards)

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1
Q

What is the purpose of a + control and - control?

A

To show a change/ compare

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2
Q

What color is a + control for Biuret? Benedict’s? IKI? Sudan Solution

A

Benedict- Green/Red
Iodine- Black
Sudan- Dark Pink
Biuret- Purple

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3
Q

Organelles unique to plant cellsBl

A

Cell Wall of cellulose, Chloroplast, Central Vacuole

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4
Q

Organelles associated with Animal cells

A

Lysosome, Pair of Centrioles

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5
Q

Found in both plant and animal cells

A

Ribosomes, Plasma Membrane, Nucleus with Nucleolus, Endoplasmic Reticulum: RER and SER, Golgi Body, Vesicle/Vacuoles, Mitochondrion (plural=mitochondria), cytoskeleton

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6
Q

Nucleus

A

DNA controls the cell: has the recipe for proteins.

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7
Q

Ribosomes

A

Protein synthesis occurs

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8
Q

Nuclear Envelope/Membrane:

A

Double membrane with pores

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9
Q

DNA

A

Coiled around proteins DNA is genetic material genes are made from DNA

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10
Q

Nucleolus

A

Dense mass within nucleus; RNA + Proteins

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11
Q

ER:

A

Endoplasmic Reticulum

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12
Q

RER

A

Rough Endoplasmic Reticulum is directly attached to the nuclear envelope. Function is the site of protein synthesis.

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13
Q

SER

A

Smooth Endoplasmic Reticulum- No ribosomes so the membrane appears smooth. Function is the site if lipid synthesis

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14
Q

Golgi

A

Modifies, distributes, and stores proteins.

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15
Q

Lysosomes- In animal cells only

A

Contains digestive enzymes for integrative cellular digestion. [Within cells digestion] Not for human digestion.

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16
Q

Vacuoles

A

Membrane sacs that bond off of ER or Golgi.

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17
Q

Central Vacuoles

A

Stores amino acids, sugars, toxins, and waste.

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18
Q

Chloroplast

A

Performs photosynthesis

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19
Q

Mitochondria

A

Site of aerobic cellular respiration makes a vast amount of ATP.

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20
Q

Cytoskeleton

A

Cell shape and movement

  • Provides scaffolding for organization
  • Helps cells move
  • Helps cells change their shape
  • Helps muscles contract

Microtuboules- The material the flagella and cilia is made out of. Not all bacteria have it.

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21
Q

Centrioles

A

Found in only animals, made up of microtuboules and is vital to cell division.

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22
Q

Plant Cell Wall

A

All plant cells have a cell wall with cellulose and other materials. The cell wall is secreted outside the cell plasma membrane. We call the cellulose the polymer of glucose which is fibers.

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23
Q

What is Benedict, IKI, Sudan, and Biuret testing for?

A

Benedict- Glucose
IKI- Starch
Sudan- Lipids
Biuret- Protein

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24
Q

What is the negative control for Benedict’s, IKI, Sudan, and Biuret?

A

Benedict’s-Light/Clear Blue
IKI- Red
Sudan- Pale Pink
Biuret- Blue

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25
What four features are found in both Pro and Eukaryotic Cells?
DNA, RNA, Ribosomes, Plasma Membrane, and Cytoplasm
26
How are nucleotides linked together?
5 carbon sugars +, phosphate group +, Nitrogen Containing Base +
27
2 Organelles that are found in only plant cells
Cell Wall, Chloroplast, Large Central Vacuole
28
2 organelles found only in animal cells?
Lysosomes, and centrioles
29
Difference between a nucleus and a nucleoid?
Nucleus has a membrane
30
How is a Nucleus and a Nucleoid similar?
All DNA
31
What is a Pilus? Thylakoid
Capsule
32
What polysaccharide is found in cell wall of plants?
True bacteria
33
How to calculate the total magnification
Ocular X Objective= 2 lens magnify the image
34
Condenser | Rheostat
Condenser- Doesn’t magnify/focuses light Rheostat- Adjustment of light.
35
Which indicator identifies reducing sugars?
Benedict’s
36
Which indicator identifies a protein?
Biuret
37
Which indicator identifies a starch?
IKI
38
Which indicator identifies fats?
Sudan 4
39
Which type of cell lacks a wall?
Animal
40
Name the 3 common shapes of bacteria?
Spherical, Rod, Spiral
41
What is a meniscus?
The bottom of the water in the graduated cylinder
42
Which metric unit is used for temperature?
Celcius
43
Which metric units are used for mass?
Grams, Milligrams, Kilograms.
44
Which metric units are used for length?
M, CM, MM
45
Which metric units are used for volume?
Ml
46
Which metric unit can be used to describe the distance between Norwalk and Stamford
KM
47
Which metric unit can be used to describe the size of a skin mole?
MM
48
Which metric unit can be used to describe the size of a cell?
6.4mgx(1g/1000mg)
49
Given 1g(gram)=1000mg convert 6.4g to mg
6.4g(1000mg/1)
50
33. Given 1g=100mg convert 6.4g to mg
Empty
51
For our microscopes name the 4 objectives and give their magnifications.
4x, 10x, 40x
52
What is the function of the RER, SER, and Golgi?
Protein Synthesis, Lipid Synthesis
53
What is the function of the mitochondrion, chloroplast
Mitochondria performs aerobic cellular respiration and produces ATP. Chloroplast performs Photosynthesis.
54
Are Cyanobacteria/Blue green algae pro or eukaryotic
Eukaryotic
55
Are plants pro or eukaryotic? To which domain do they belong to?
Skip
56
Are animals pro or eukaryotic? To which domain do they belong to.
Skip
57
What is the purpose of dialysis tubing?
Artificial Membrane
58
Of NaCL, Glucose, Starch, and Water, which can move.
Glucose, Water, NaCL
59
Would dialysis tubing filled with NaCL, glucose, and starch solutions lose or gain weight if placed in a beaker of distilled water?
Gain
60
By which process does water move?
Osmosis
61
If the solutes mentioned above could move in or out of the dialysis tubing, by which process would they move?
Diffusion
62
Describe how to focus a slide on the microscope.
Start wiscanning stage
63
Describe how the microscope should be put away
Back to scanning stage down, practical

Biology (2 decks)

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