Week 1: CS Quiz

Quiz
•
Biology, Chemistry, Physics
•
9th - 11th Grade
•
Hard
Mawardi DHS
Used 3+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagram shows plant cells.
Which structure would also be found in animal cells?
A
B
C
D
Answer explanation
There are only 3 structures you need to remember in ANIMAL CELL:
1. Nucleus.
2. Cell Membrane.
3. Cytoplasm.
*All these structures also exist in PLANT CELLS!
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A mixed culture of living and non-living cells is placed in a red stain.
Only non-living cells take up the stain.
Which structure prevents the stain entering the living cells?
Cell Wall
Cell Membrane
Cytoplasm
Vacuole
Answer explanation
Cell surface membrane only allows certain molecules to enter and leave the cell.
So, this living structure prevents the entering of the red stain.
*Cell wall is non-living, therefore it allows the liquid to pass through.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which structure in the plant cell contains chromosomes?
A
B
C
D
Answer explanation
The nucleus contains chromosome.
This chromosome carries DNA.
DNA is the genetic materials. It carries different "coding" for every single person that makes you unique from other.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The diagram shows a plant cell as seen under a microscope.
What are the functions in the cell of the numbered parts?
Controlling entry of substance = 1
Synthesis of Carbohydrates = 3
Controlling entry of substance = 3
Synthesis of Carbohydrates = 1
Controlling entry of substance = 3
Synthesis of Carbohydrates = 2
Controlling entry of substance = 2
Synthesis of Carbohydrates = 1
Answer explanation
1 = Chloroplast.
It contains the green pigment called Chlorophyll.
Chlorophyll used to trap sunlight in the process of photosynthesis.
During Photosynthesis, Carbohydrate + Oxygen is made.
2 = Cell Surface Membrane.
It selectively controls the passage of substance entering and leaving the cell.
3 = Cellulose cell wall.
It provides shape, support, and protection to the cell.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The diagrams show some pieces of potato in four sugar solutions with different concentrations of water.
In which solution will the potato piece take up water from the solution and swell?
A
B
C
D
Answer explanation
Osmosis =
The movement of water molecules from high water potential to low water potential through a partially permeable membrane. Down the water potential gradient.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A student adds different loads to the end of a spring. She measures the extension in each case and plots a graph of extension against load.
Which graph is correct?
A
B
C
D
Answer explanation
According to Hooke's Law, the stress (load) applied on a body is directly proportional to strain (extension) produced.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The motion of an object is represented by a speed-time graph.
Which statement about the object is correct?
It is at rest
It is moving with increasing speed
It is moving at uniform speed
It is moving with uniform non-zero acceleration
Answer explanation
The object is travelling in equal distances in equal intervals of time.
*This is a SPEED-TIME GRAPH!
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