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Biology Practical and Essay Flashcards

(57 cards)

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1
Q

What are the steps of the scientific method?

A

Observation
Hypothesis
Prediction
Experimentation
Data Analysis
Conclusions

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2
Q

When measuring the amount of liquid in a graduated cylinder, we should read the measurement at eye level from the center of the ___________?

A

Meniscus

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3
Q

Benedicts test is for ___________?

A

Glucose

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4
Q

Iodine test is for ___________?

A

Starch

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5
Q

Sudan IV test is for ___________?

A

Lipids

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6
Q

Biuret test is for___________?

A

Proteins

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7
Q

What are the positive and negative results for the Iodine test?

A

Positive- Black
Negative- Yellow

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8
Q

What are the positive and negative results for the Sudan IV test?

A

Positive- Bright Red
Negative- Light Pink

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9
Q

What are the positive and negative results for the biuret test?

A

Positive- Purple
Negative- Clear

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10
Q

What are the positive and negative results for the Benedicts test?

A

Positive- Red
Negative- blue

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11
Q

What do plants have that animal cells don’t have?

A

Cellulose, cell wall, water vacuoles, chloroplasts

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12
Q

___________ are only found in animal cells.

A

Organelles

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13
Q

If two solutions have different solute concentrations, the one with the higher solute concentration is referred to as _____________?

A

Hypertonic

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14
Q

If an egg gains mass the solution is ______ to the egg?

A

hypotonic

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15
Q

The egg placed in high salt solution what happened to the egg?

A

The egg shrunk
The egg decreased in mass

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16
Q

What percentage makes the solution hypertonic to the egg?

A

> 14%

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17
Q

If an egg is in 6% solution it is ________?
And does it gain or loose mass?

A

Hypertonic
Gains mass

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18
Q

The complex chemical compounds that plants produce to defend themselves against infection are called ________________?

A

Secondary Plant Metabolites

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19
Q

What is it that helps plants defend themselves?

A

Chemicals

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20
Q

Types of Secondary Metabolites

A

Alkaloids
Saponins
Phenolics
Tannins

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21
Q

Open Circulatory System

A

Have Vessels that are open at one end allowing hemolymph fluid to flow out amount the cells

In arthropods and mollusks and arthropods

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22
Q

Closed Circulatory System

A

Fluid called blood remains. within the vessels as it rapidly circulates through the body.

Present in vertebrates and annelid worms

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23
Q

What happens to BP and Heart Rate at steady state vs exercising?

Study These Flashcards
A

Steady your blood pressure is normal, and your heart rate is slow in speed. As you begin to exercise the BP and heart rate increase because your muscles need more oxygen.

24
Q

A represents what artery when testing for glucose in the body?

And where does it transport blood?

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A

Mesenteric Artery

Takes blood from the aorta to the intestines

25
B represents what vein when testing for glucose in the body? And where does it transport blood?
Hepatic Portal Vein Intestines to liver
26
C represents what vein when testing for glucose in the body? And where does it transport blood?
Hepatic liver to vena cava
27
What does the diagram for glucose travel look like?
C--->Heart---A----->Small Intestine----B----->Liver----C
28
What is the order of the concentration of glucose in order from most concentrated to lease concentrated directly after eating?
1- B- The small intestine to the liver 2-C- The small intestine to the heart 3-A The Heart to the small intestine
29
Several hours after eating, what is the concentration after eating from the three locations from the most concentrated to the least concentrated?
1-C- The Liver to the heart 2-A The heart to the small intestine 3-B- The small intestine to the liver
30
What does salt do to pulse rate?
Increases pulse rate
31
What does acetylcholine do to pulse rate?
Increases
32
What does epinephrine do to pulse rate?
Increases
33
What does Alcohol do to pulse rate?
Slows it
34
What does nicotine do to pulse rate?
Increases
35
What does caffeine do to pulse rate?
Increases
36
Haploid cells make _________ organisms.
Diploid
37
What do humans use secondary metabolites for?
Medicinal purposes Herbal Pharmacies
38
What does it mean when bacteria surrounds a disk?
Microbial activity whether certain plants have secondary metabolites
39
Gram Positive What color?
Bacteria have thick cell walls composed of peptidoglycan but lack the additional lipopolysaccharide layer Purple
40
What are three modes of locomotion
Cilia Flagella Pseudopodia
41
Gram Negative
Bacteria have an additional lipopolysaccharide layer surrounding peptidoglycan walls.
42
Flagella
mode of locomotion a long whip like structure sperm cells
43
Cilia
mode of locomotion small short hair like structure that coat outside of some cells
44
Pseudopodia
mode of locomotion temporary foot like protrusion of the cell surface
45
What are the basic shapes of bacteria
Bacilli Cocci Spirilla
46
Spiral-Shaped Bacteria
Sprilla
47
Rod-Shaped Bacteria
Bacilli
48
Round-shaped bacteria
cocci
49
Cells with exact copies of the DNA from parent cells found all over the body.
Somatic Cells
50
Sex cells
Gametes
51
Meiosis creates what cells?
Gametes
52
Meiosis produces what type of cells?
Haploid
53
Diploid cell
2 copies of each chromosome
54
Haploid cell
half the number of original chromosomes
55
What is produced in fermentation?
Ethanol C02 NAD+
56
What does it mean to be antibiotic resistant?
The bacteria or virus has become immune and has evolved so that it is resistant to. drugs and takes over your system Impossible to treat
57
What happens if you do not finish you medication?
Wont kill all bacteria and the remaining bacteria and become resistant causing more trouble when getting rid of the virus.

Biology (12 decks)

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