What will most likely happen if an appropriate enzyme is added to a chemical reaction?

the reaction rate will increase

Which of the following should be inferred about cells with semipermeable.

Water enters cell when placed in high water concentration

Why does ice stay at the top of oceans instead of sinking to the bottom?

Ice is less dense than liquid water

Which of the following properties of water enables it to move from the roots to the leaves?

Water exhibits cohesive behavior

Which of the following describes the connection between these two statements?

Enzymes function best at a specific temperature

Which of the following conclusions is supported by the graph?

Infection embanked ponds increased during sampling period

Which is the best conclusion for this experiment?

High acidity is harmful to this type of plant

Which of the following conclusions can be drawn from this graph?

Atm. CO2 lvl risen increase higher % past century progressed

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Duplicate of Unit 1: Biology Basics

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The following contains information covering the basics of biology, such as the scientific method and nature of science, chemistry of life and water properties, and macromolecules and nutrition.

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Questions 19

Answers

1
What will most likely happen if an appropriate enzyme is added to a chemical reaction?
the reaction rate will increase
the reaction rate will decrease
the equilibrium of the reaction will be maintained
the reaction will stop
2
Which of the following should be inferred about cells with semipermeable.
Substances other than water can block pores in cell membrane
Water enters cell when placed in high water concentration
Water leaves cell when in low concentration solute locations
Substances other than water can cross cell membrane
3
The diagram shows the general structure of an amino acid. Which type is formed from amino acids
nucleic acids
carbohydrates
lipids
proteins
4
Why does ice stay at the top of oceans instead of sinking to the bottom?
Ice is less dense than liquid water
Ice is denser than liquid water
Ice is warmer than liquid water
Ice is colder than liquid water
5
Which graph changes in a reaction when the catalyst reduces the amount of energy required
Graph B
Graph A
Graph D
Graph C
6
Which of the following properties of water enables it to move from the roots to the leaves?
Water expands as it freezes
Water is able to moderate temperature
Water exhibits cohesive behavior
Water is an excellent solvent
7
The enzyme lactase will break down the sugar lactose into which of the following components?
monosaccharides
nucleic acids
amino acids
phospholipids
8
Large bodies of water don't fluctuate in temp. What is the reason for this phenomenon?
Water has a high heat capacity
Water is an acid
Water acts as a buffer
Water is a versatile solvent
9
How will you classify the compound?
lipid
nucleic acid
carbohydrate
protein
10
Which of the following most likely happens to pepsin as it enters the small intestine?
it's inactivity increases to digest more proteins
it's shape changes to engulf large proteins
it becomes inactive
it begins to replicate
11
Which of the following describes the connection between these two statements?
there is no connection between the two statements
body is kept relatively warm to prevent many enzyme actions
Enzymes function best at a specific temperature
Body needs to be warm to prevent hypothermia
12
Fats, oils and cholesterol are all types of what?
cell membranes
lipids
fatty acids
hormones
13
A sugar, a phosphate group, and a nitrogen base form building blocks of which organic compound?
nucleic acids
lipids
proteins
carbohydrates
14
Water is universal due to dissolved substances. What property of water allows versatile solvent
high heat capacity
polarity and cohesion
purity
expansion upon freezing
15
Which of the following conclusions is supported by the graph?
Protozoans reproduce quicker in embanked pond than creek-fed
Infection embanked ponds increased during sampling period
Protozoans more common in creek-fed ponds than embanked pond
Infection in creek fed ponds remained constant around sample
16
Which component is missing from Carmen's experiment?
A Question
A Control Group
A description of the experiment
A Hypothesis
17
Which is the best conclusion for this experiment?
High acidity is harmful to this type of plant
Acid has no effect on the health of this type of plant
High acidity is helpful to this type of plant
Low acidity is harmful to this type of plant
18
Which of the following conclusions can be drawn from this graph?
Atmosphere CO2 lvl have rise about same ratefor past century
Atmosphere CO2 levels are responsible fro global temp change
Atmospheric CO2 lvls remained the same over past century
Atm. CO2 lvl risen increase higher % past century progressed
19
RNA and DNA are which type of macromolecules?
nucleic acid
carbohydrate
lipid
protein

Duplicate of Unit 1: Biology Basics Flashcards | StudBud