Photosynthesis
Where does the OXYGEN GAS that plants release during photosynthesis come from?
Water
What happens to the OXYGEN GAS that you INHALE?
It either becomes part of water molecules or is exhaled unchanged.
How do plants get their food in the most scientifically accurate way?
Plants do photosynthesis to make their own food.
Which of the following are ordered correctly from the LARGEST to the SMALLEST?
Select one:
a. plant cell, glucose, chloroplast, chlorophyll, carbon dioxide
b. plant cell, chloroplast, chlorophyll, glucose, carbon dioxide
c. chloroplast, plant cell, glucose, carbon dioxide, chlorophyll
d. plant cell, chlorophyll, chloroplast, glucose, carbon dioxide
e. plant cell, glucose, chloroplast, carbon dioxide, chlorophyll
plant cell, chloroplast, chlorophyll, glucose, carbon dioxide
In what molecule(s) is sunlight energy FINALLY stored during photosynthesis?
Glucose
Which of the processes of aerobic cellular respiration produces the most ATP?
Electron Transport Chain and Chemiosmosis
A mature tree can have a DRY MASS of 1 ton or more (after removing all the water), yet it starts from a seed that weighs less than 1 gram. Which of the following contributes the MOST DRY MASS to this huge increase in biomass?
Incorporation of carbon dioxide from the air into molecules by green leaves
If 10% of the nucleotides in a DNA molecule are adenine (A), what percentage of the nucleotides do you predict would be cytosine (C)?
40%
In what molecule(s) is sunlight energy INITIALLY stored during photosynthesis?
NADPH and ATP
The O2 in aerobic cellular repiration is directly involved in which process?
accepting electrons at the end of the electron transport chain
When biologists refer to "organic molecules," they are talking about molecules that...
contain carbon atoms and are normally found in living things
Which type of cells in your body are most likely to acquire mutations?
Cells undergoing mitosis
Would photosynthesis occur without chlorophyll and chloroplasts?
No! it needs both
Where do your body's get water?
Liquids, foods, and cellular respiration
What is the original source of all the DRY MASS that is in YOUR BODY right now?
Carbon Dioxide
A man has passed down a p53 mutation to his son. This p53 mutation makes it more likely for a cell to become cancerous. If the son acquires skin cancer later in life this p53 mutation exists in:
All the cells in his body
Three batches of radish seeds – each 1.5 grams – were weighed out.
The following experimental treatments were done:
A. Seeds not moistened (left DRY) placed in LIGHT
B. Seeds placed on moistened paper towels in LIGHT
C. Seeds placed on moistened paper towels in DARK
After 1 week, all plant material was dried in an oven overnight (no water was left) and the plant's dry biomass was measured in grams on a scale. Note: Dry biomass is the weight of all the molecules in a living thing after water is removed through drying.
In which of the experimental conditions above is PHOTOSYNTHESIS happening (which would result in a GAIN of MASS)?
B only
Three batches of radish seeds – each 1.5 grams – were weighed out.
The following experimental treatments were done:
A. Seeds not moistened (left DRY) placed in LIGHT
B. Seeds placed on moistened paper towels in LIGHT
C. Seeds placed on moistened paper towels in DARK
After 1 week, all plant material was dried in an oven overnight (no water was left) and the plant's dry biomass was measured in grams on a scale. Note: Dry biomass is the weight of all the molecules in a living thing after water is removed through drying.
In which of the experimental conditions above is CELLULAR RESPIRATION happening (which would result in a LOSS of MASS)?
In A, B, and C
How does WATER contributes to the DRY MASS of a tree is most scientifically accurate way?
water contributes some to the dry mass
Which of the following are ordered from the LARGEST to the SMALLEST?
Select one:
a. Influenza virus, E. coli bacterium, skin cell, ribosome, glucose molecule
b. Skin cell, influenza virus, ribosome, E. coli bacterium, glucose molecule
c. Skin cell, E. coli bacterium, influenza virus, glucose molecule, ribosome
d. Skin cell, E. coli bacterium, influenza virus, ribosome, glucose molecule
e. E. coli bacterium, skin cell, ribosome, influenza virus, glucose molecule
Skin cell, E. coli bacterium, influenza virus, ribosome, glucose molecule