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B1 Quiz Cells and Enzymes Flashcards | StudBud
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B1 Quiz Cells and Enzymes
B1 Quiz Cells and Enzymes
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StudBud Administration
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A quiz designed to recap the basics of B1: Biology
Flashcards
15 cards
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Questions
15
Answers
1
What is produced when lipase breaks down fats and oils?
Amino acids and glycerol
Fatty acids and glycerol
Fatty acids and glucose
Amino acids and glucose
2
The eyepiece lens of a microscope is x10 magnification. Objective lens is x4. Magnification = ?
400
x40
x2.5
x14
3
Which of these statement about denaturation of enzymes is false?
During denaturation the shape of the enzyme changes
High temperatures and changes in pH can denature an enzyme
Denaturing an enzyme means it no longer works
Denaturing of an enzyme can be reversed
4
What is label 4 on the diagram?
Chloroplast
Mitochondria
Cytoplasm
Vacuole
5
If starch is the polymer, what is the monomer?
Amino acids
Glycerol
Fatty acids
Sugar
6
What does this graph show?
Affect of inhibitors on the rate of reaction
Affect of temperature on rate of reaction
Affect of pH on rate of reaction
Affect of substrate concentration on rate of reaction
7
What are the products of aerobic respiration?
Lactic acid
Carbon dioxide and water
Glucose and oxygen
Oxygen and water
8
What is the name of the theory which describes how enzymes work?
Slot and fit
Jigsaw
Lock and key
Complementary shape
9
Which of these is the correct combination of complementary bases in DNA?
C-T and A-G
C-G and A-T
C-G and A-U
C-A and G-T
10
Which cell organelle releases energy in the process of aerobic respiration?
Mitochondria
Nucleus
Chlorplast
Ribosome
11
What type of molecule does DNA actually code for?
Protein
Lipid
Nucleotides
Carbohydrate
12
Which of these are found in plant cells but not animal cells?
Ribosomes
Cell membranes
Mitochondria
Chloroplasts
13
A nucleus measures 6.5 micrometres from end to end. What is this in millimetres?
6.5 x 102 mm
6500mm
0.065mm
6.5 x 10-3 mm
14
What is produced during anaerobic respiration in humans?
Water and lactic acid
Lactic acid
Carbon dioxide and water
Carbon dioxide and lactic acid
15
Which molecule brings amino acids (orange dots) to the ribosome during translation?
DNA
mRNA
tRNA
rRNA
