BIOL 334 (Midterm #1) Question and
answers correctly solved 2025
How many plant species are used for medicine, food, clothing, packaging,
etc.? - correct answer ✔3000 species
What are the dozen of plants that account for 80% world annual crop
tonnage? - correct answer ✔1. Sugar cane
2. Corn
3. Rice
4. Wheat
5. Potato
6. Sugar beet
7. Manioc/cassava
8. Palm oil
9. Soy
10. Tomato
11. Barley
12. Water melon
What are the plant components? - correct answer ✔- Primary metabolites
and structural components
- secondary metabolites
What are metabolites? - correct answer ✔=> a substance formed in or
necessary for metabolism.
,- Secondary metabolites
- Provide us with simple carbohydrates, sugars, and proteins
- Plant defence => big, tough, thorns (roses) physical defences, taste bad,
cause sickness, anti-delivery
- Plant cannot move/run away
What is used to name/classify plants? - correct answer ✔1. Physiological
features (leaves, flowers, etc.)
2. Genus and species names the plant, final definition of the plant
3. Grouping by DNA
- Genus is capitalized and the species is not capitalized
- Shows relationship between groups
What is the hierarchy of plant classification? - correct answer
✔Classification/Name/Common Name
1. Kingdom/Plantae/plant
2. Division/Magnoliophyta/flowering plant
3. Class/Magnoliopsida/dicot
4. Order/Rosales
5. Family/Rosaceae/rose family
,6. Genus/Malus/apple
7. Species/domesticus
How many plants are there? What percentage of these are flowering plants in
the plant kingdom? - correct answer ✔- 387,671 plants
- Over 90%
What are common plants that don't make flowers? - correct answer ✔Conifer
trees, Mosses, and Firs
How many plant families are there? How many of these families are
commonly used? - correct answer ✔~ 416-452 recognized plant families
- 15-20 families commonly used
Characteristics of caffeine? - correct answer ✔- Active ingredient of coffee
- Alkaloid compound
- Increases cellular metabolism (adrenergic), diuretic
Define Adrenergic - correct answer ✔Relating to or denoting nerve cells in
which epinephrine (adrenaline), norepinephrine (noradrenaline), or a similar
substance acts as a neurotransmitter.
Define Diuretic - correct answer ✔Drug that enables the kidneys to rid the
body of excess fluid. It may also be referred to as a "water pill."
, Define Alkaloid - correct answer ✔Any of a class of nitrogenous organic
compounds of plant origin which have pronounced physiological actions on
humans. They include many drugs (morphine, quinine) and poisons (atropine,
strychnine).
- Alkaloids tend to do something to the same organism/other organisms
(bioactive nature)
Why is it cheaper to produce darker roast? - correct answer ✔Harder and
more time consuming to roast a coffee bean overtime to get more a mild roast
coffee
What is coffee genus name and family name? - correct answer ✔Genus:
Coffea arabica
Coffee family: Rubiaceae (flowering plant)
Where is coffee native/originated from? - correct answer ✔Highlands of
Ethiopia
What does the coffee plant look like and how is it grown? - correct answer ✔-
Small evergreen tree/shrub
- Grown in tropics with high elevation (3000-6000ft) for cool stable temp and
wind
- Seed is green and has to be roasted
What is the caffeine content of brewed coffee, filter coffee, instant coffee, and
espresso? - correct answer ✔Brewed coffee = 150mg
Filter coffee 135mg
Instant coffee = 110mg
Espresso = 64mg
answers correctly solved 2025
How many plant species are used for medicine, food, clothing, packaging,
etc.? - correct answer ✔3000 species
What are the dozen of plants that account for 80% world annual crop
tonnage? - correct answer ✔1. Sugar cane
2. Corn
3. Rice
4. Wheat
5. Potato
6. Sugar beet
7. Manioc/cassava
8. Palm oil
9. Soy
10. Tomato
11. Barley
12. Water melon
What are the plant components? - correct answer ✔- Primary metabolites
and structural components
- secondary metabolites
What are metabolites? - correct answer ✔=> a substance formed in or
necessary for metabolism.
,- Secondary metabolites
- Provide us with simple carbohydrates, sugars, and proteins
- Plant defence => big, tough, thorns (roses) physical defences, taste bad,
cause sickness, anti-delivery
- Plant cannot move/run away
What is used to name/classify plants? - correct answer ✔1. Physiological
features (leaves, flowers, etc.)
2. Genus and species names the plant, final definition of the plant
3. Grouping by DNA
- Genus is capitalized and the species is not capitalized
- Shows relationship between groups
What is the hierarchy of plant classification? - correct answer
✔Classification/Name/Common Name
1. Kingdom/Plantae/plant
2. Division/Magnoliophyta/flowering plant
3. Class/Magnoliopsida/dicot
4. Order/Rosales
5. Family/Rosaceae/rose family
,6. Genus/Malus/apple
7. Species/domesticus
How many plants are there? What percentage of these are flowering plants in
the plant kingdom? - correct answer ✔- 387,671 plants
- Over 90%
What are common plants that don't make flowers? - correct answer ✔Conifer
trees, Mosses, and Firs
How many plant families are there? How many of these families are
commonly used? - correct answer ✔~ 416-452 recognized plant families
- 15-20 families commonly used
Characteristics of caffeine? - correct answer ✔- Active ingredient of coffee
- Alkaloid compound
- Increases cellular metabolism (adrenergic), diuretic
Define Adrenergic - correct answer ✔Relating to or denoting nerve cells in
which epinephrine (adrenaline), norepinephrine (noradrenaline), or a similar
substance acts as a neurotransmitter.
Define Diuretic - correct answer ✔Drug that enables the kidneys to rid the
body of excess fluid. It may also be referred to as a "water pill."
, Define Alkaloid - correct answer ✔Any of a class of nitrogenous organic
compounds of plant origin which have pronounced physiological actions on
humans. They include many drugs (morphine, quinine) and poisons (atropine,
strychnine).
- Alkaloids tend to do something to the same organism/other organisms
(bioactive nature)
Why is it cheaper to produce darker roast? - correct answer ✔Harder and
more time consuming to roast a coffee bean overtime to get more a mild roast
coffee
What is coffee genus name and family name? - correct answer ✔Genus:
Coffea arabica
Coffee family: Rubiaceae (flowering plant)
Where is coffee native/originated from? - correct answer ✔Highlands of
Ethiopia
What does the coffee plant look like and how is it grown? - correct answer ✔-
Small evergreen tree/shrub
- Grown in tropics with high elevation (3000-6000ft) for cool stable temp and
wind
- Seed is green and has to be roasted
What is the caffeine content of brewed coffee, filter coffee, instant coffee, and
espresso? - correct answer ✔Brewed coffee = 150mg
Filter coffee 135mg
Instant coffee = 110mg
Espresso = 64mg
