AnswersRVACR EcologyAnalyzing Evidence

Analyzing Evidence — Unit test Answers

15 verified answers1 views
1
Free Preview

What type of lipid is estrogen?

A
steroid
B
phospholipid
C
triglyceride
D
wax
2
Free Preview

Jun is at risk for heart disease so he is watching his cholesterol levels. He refers to the table below to choose what is best for his health.Comparison Chart of Fats Food (14 g)Saturated Fat (g)Monounsaturated Fat (g)Polyunsaturated Fat (g)Butter7.93.70.5Cream cheese3.01.50.2Margarine1.65.43.4Peanut butter1.44.02.6Which snack is the healthiest option for Jun, based on the data in the table?

A
bagel with butter
B
bagel with cream cheese
C
bagel with margarine
D
bagel with peanut butter
3

A lion eating a zebra is an example of which characteristic of life?

A
having cells
B
responding to the environment
C
using energy
D
growing and developing
4

What would most likely happen to plants if they did not have a waxy outer coating?

A
They would store more water in their leaves.
B
They would photosynthesize at a faster rate.
C
They would store more sugars in their leaves.
D
They would be harmed by insects and UV radiation.
5

Which statement describes how enzymes and substrates are related?

A
The enzyme influences the speed of change from substrate to product.
B
Enzymes are released as substrates in a chemical reaction.
C
An enzyme is a special kind of substrate in a chemical reaction.
D
Substrates combine with enzymes to form reactants.
6

Lactose (milk sugar) is a carbohydrate that is formed by combining galactose and glucose. Which term best describes this molecule?

A
monosaccharide
B
disaccharide
C
monomer
D
starch
7

Which macromolecule is the main source of energy for living things?

A
fat
B
nucleic acid
C
protein
D
carbohydrate
8

The diagram shows a simple lipid.What type of lipid is shown?

Question illustration
A
saturated
B
unsaturated
C
phospholipid
D
triglyceride
9

Which reaction is exothermic?

A
a reaction that absorbs energy from the environment
B
a reaction that requires an activation energy
C
a reaction that releases energy into the environment
D
a reaction that does not involve a change in energy
10

How does a catalyst influence a chemical reaction?

A
It speeds up or slows down a chemical reaction by direct participation.
B
It reacts with products to increase the concentration of reactants.
C
It decreases the amount of energy necessary for the reaction to proceed.
D
It increases the total amount of products formed.
11

Which statement best illustrates a biotic or an abiotic factor that is often found in a city park?

A
Decaying leaves are an abiotic factor because they are living.
B
Rocks are an abiotic factor because they have never been alive.
C
Water in ponds is a biotic factor, because it provides a habitat for living things.
D
Oxygen is a biotic factor, because it is required for life and found in all living things.
12

Which is abiotic?

A
tree sap
B
insect
C
sunlight
D
tree stump
13

A Venn diagram can be used to compare and contrast nucleic acids.Which characteristic would be correctly found in B?

Question illustration
A
contain ribose
B
consist of two strands
C
made of nucleotides
D
have an R group
14

Where does a peptide bond form?

A
between the five-carbon sugar of one nucleotide and the phosphate group of another nucleotide
B
between the R group of one amino acid and the carboxyl group of another amino acid
C
between the amino group of one amino acid and the carboxyl group of another amino acid
D
between the nitrogenous base of one nucleotide and the phosphate group of another nucleotide
15

Which component is affected when a catalyst is added to a chemical reaction?

A
the amount of substrate
B
the activation energy
C
the amount of product
D
the concentration of reactants

Did you find these answers helpful?

More from this Course

Quiz
12 verified answers

Unit Test

Quiz
3 verified answers

Unit Test

Quiz
15 verified answers

Unit Test