Why are enzymes "specific"?

They all react to only certain substrates

What happens as you increase the concentration of enzymes in reactions?

The substrates begin to run out, slowing reaction rate

What are the two functions of carbohydrates?

Energy source, structural support

Based on the graph, how does temperature affect enzyme collision rates?

Collision rates have a optimal temperature

What organelles contain membranes?

Mitochondria, Nucleus, Chloroplast

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Biology Review Quiz

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An overview of 9th grade IGSCE Biology, including scientific method, graphing, organelles, macromolecules, and enzymes.

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Questions 30

Answers

1
Why are enzymes "specific"?
They are
They all react to only certain atoms
They all react to only certain enzymes
They all react to only certain substrates
2
What atom do proteins have that carbs and lipids don't?
Nitrogen
Molecule
Hydrogen
Oxygen
3
What cell is pictured?
Animal
Prokaryotic
Plant
Bacterial
4
What happens as you increase the concentration of enzymes in reactions?
The reaction rate increases
The reaction rate decreases
The substrates begin to run out, slowing reaction rate
The enzymes begin to run out, slowing reaction rate
5
What cell organelle is pictured?
Smooth Endoplasmic Reticulum
Lysosome
Golgi Complex
Protein
6
What macromolecule is pictured?
Carbohydrate
Amino acid
Lipid
Nucleic acid
7
What graph is pictured?
Bar
Time
Pie
Line
8
What is one of the three parts of a nucleic acid?
5 carbon sugar
Iron
Wax
Fatty acid
9
What is the indicator of starch?
Benedict's solution
Biuret solution
Paper bag
Iodine
10
What is the missing step of the Scientific Method pictured?
Experiment
Independent Variable
Purpose
Conclusion
11
The dependent variable in scientific graphing is represented by:
f(x)
z
x
y
12
Lipids are used to develop what cell organelle?
Cell Membrane
Centriole
Nucleus
Cell
13
What substance suspends all the organelles in the cell?
Chlorophyll
Vesicles
DNA
Cytoplasm
14
After a student tests his hypothesis, what should he do next?
Conclude
Research
Experiment
Analyze
15
What are the two functions of carbohydrates?
Transmits genetic info, controls cells
Energy storage, membrane developer
Energy source, structural support
Glucose, sucrose, starch
16
When enzymes synthesize substrates they:
Destroy them
Fuse two substrates together
Do nothing to them
Break one substrate in two
17
What type of endoplasmic reticulum creates lipids?
Cytoplasm
Rough
Smooth
Ribosomes
18
Enzymes are:
Abiotic catalysts
Carbohydrates
Biological protein catalysts
Substrates
19
What organelle is pictured that also creates proteins?
Ribosome
Nucleus
Protein
Lysosome
20
The substrate for the enzyme lactase is:
Enzymes
Lactose
Mitochondria
Lactase
21
Based on the graph, how does temperature affect enzyme collision rates?
Collision rates don't affect temperature
Collision rates decrease as temperature rises
Collision rates have a optimal temperature
Collision rates increase as temperature rises
22
What are the three data graph types?
Title, Axes, Key
Pie, Bar, Line
Venn Diagram, Bar, Axis
Line, Data, Chart
23
Pie charts are used to display:
Parts of a whole
Comparison of data
Numbers
Change over time
24
What is the component highlighted?
Product
Lock & Key Model
Substrate
Enzyme
25
What are proteins made of?
Nucleic acids
Carbohydrates
Amino acids
Lipids
26
Which type of cell contains no nucleus?
Bacteria
Animal
Plant
Vacuole
27
What enzyme reaction is pictured?
Synthesis
Substrate
Digestion
Lock & Key Model
28
What organelles contain membranes?
Nuclear Envelope, Nucleolus, Nucleus
E.R., Golgi Complex, Vacuole
Nucleus, Lysosomes, Cell Membrane
Mitochondria, Nucleus, Chloroplast
29
Fatty acid chains are a main component of:
Lipids
Carbohydrates
Proteins
Macromolecules
30
What is a necessary component of line graphs?
Data
All of the above
Axes
Key

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