Which energy transfer takes place in photosynthesis? ____ energy is transferred into ________ energy
light into chemical
Oops!
Check
Okay!
Check
15
A drawing of an ant is 75 mm long. The magnification of the drawing is × 15. What is the real length of the ant?
5mm
Oops!
Check
Okay!
Check
15
Some plant cells were placed in a concentrated sugar solution. Their cytoplasm and cell membranes shrank and pulled away from the cell walls. What is the term for this condition?
Plasmolysis
Oops!
Check
Okay!
Check
15
When leaves photosynthesise, they make carbohydrates. In what form is the carbohydrate transported to other parts of the plant?
sucrose
Oops!
Check
Okay!
Check
15
What are the 4 smaller molecules from which a fat molecule is made?
3 fatty acids and 1 glycerol
Oops!
Check
Okay!
Check
15
Which structure controls the movement of substances into and out of a cell?
Cell membrane
Oops!
Check
Okay!
Check
15
Which element is found in all proteins, but not in carbohydrates or fats?
nitrogen
Oops!
Check
Okay!
Check
eraser
Reset score!
Oops!
gold
Win 50 points!
Okay!
shark
Other team loses 15 points!
Okay!
thief
Give points!
5
10
15
20
25
15
When testing a leaf for starch, why is the leaf placed in hot alcohol?
To extract the chlorophyll
Oops!
Check
Okay!
Check
15
What is the term for water diffusing down its concentration gradient?
Osmosis
Oops!
Check
Okay!
Check
thief
Give points!
5
10
15
20
25
gold
Win 50 points!
Okay!
gift
Win 25 points!
Okay!
thief
Give points!
5
10
15
20
25
15
What is a green pigment that absorbs energy from sunlight for photosynthesis?
Chlorophyll
Oops!
Check
Okay!
Check
15
When animal cells are placed in pure water, they burst. Plant cells do not burst in these conditions. Why don’t the plant cells burst?
The cell wall stops the cell from expanding too much
Oops!
Check
Okay!
Check
15
In what form is carbohydrate transported in human blood?
glucose
Oops!
Check
Okay!
Check
15
Why does the rate of an enzyme-catalysed reaction increase as temperature is raised from 0 to 40 °C?
The enzymes and the substrates have more kinetic energy so they collide more frequently
