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Bibliotek

Unit 1 Test (AAC)

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Sidst opdateret 20 days ago
20 Spørgsmål
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Spørgsmål 1
1.

Short Answer: Carbohydrate and Lipids -

In a Keto diet, there is a high fat concentration intake. A person can only have 20g of carbohydrates per day. Discuss the pros and cons of the Keto diet.

Spørgsmål 2
2.

The terms listed below describe functions and examples of carbohydrates and lipids. Select whether each statement applies to carbohydrates, lipids, or both.

Carbohydrates

Lipids

Both

An example is cellulose or chitin

Provides energy

Makes up the cell membrane

Gives insulation

Spørgsmål 3
3.

Jose is feeling tired in class, so he wants to eat something that will give him energy. Which part of the label should Jose look at to figure out what food will give him the most quick energy?

Spørgsmål 4
4.

Match each biomolecule below with its function(s) in your body.

Draggable emnearrow_right_altKorresponderende emne

Lipid

arrow_right_alt

Used for quick energy

Nucleic Acid

arrow_right_alt

Used for long term energy storage and insulates (keeps heat in) your body

Carbohydrate

arrow_right_alt

Builds hair, nails, enzymes, feathers, and your traits

Protein

arrow_right_alt

Used as genetic information by the cell

Spørgsmål 5
5.

Which of the following is TRUE about proteins?

Spørgsmål 6
6.

Edgar plays mid-field on a competitive soccer team. He is very serious about competing in the next Olympic Games and is determined to win a gold medal for team USA. Athletes that compete at such a high level require a lot of energy in order to run the field for long periods of time.

Which of the following foods would be best for Enrique to eat before he plays for the gold medal?

Spørgsmål 7
7.

A table of four types of carbohydrates is shown.

Which list correctly matches the functions to the types of carbohydrates?

Spørgsmål 8
8.

What is the function (job) of this biomolecule in your body?

Spørgsmål 9
9.

What is the function (job) of this biomolecule in your body?

Spørgsmål 10
10.

What is the function (job) of this biomolecule in your body?

Spørgsmål 11
11.

The graph shows how enzymes affect reaction in cells compared to reactions that do not use enzymes.

Match the following statement to the graph.

Andre svarmuligheder:
This line shows an enzyme that has no active site.
This is the amount of energy required to complete the reaction with out an enzyme.
This line shows a reaction with out an enzyme.
This line represents the reactants.
This line shows a reaction with an enzyme.
Spørgsmål 12
12.

Enzymes are proteins that have a three-dimensional shape that is specific to a particular substrate. Environmental conditions can change the shape of the protein.

What is the most likely result if the shape of the enzyme changes?

Spørgsmål 13
13.

For an enzyme to be able to catalyze a reaction, the active site must —

Spørgsmål 14
14.

Rennin is an enzyme that catalyzes a reaction that solidifies milk. Rennin was added to three different test tubes with milk. Each test tube was placed in a water bath for ten minutes. The data collected during the experiment are shown.

Which statement best explains the result of test tube 3?

Spørgsmål 15
15.

Penicillin is an antibiotic (medicine) that a doctor may prescribe you if you are feeling sick. Penicillin works by inhibiting (stopping) the enzyme transpeptidase from properly forming the cell walls of bacteria cells.

A diagram representing the process of penicillin (enzyme inhibitor) acting on transpeptidase (enzyme) is shown below.

  • Will the enzyme be able to catalyze the reaction with the substrate properly? Explain why or why not.

Look at the diagram carefully. Then enter your answer and explanation in the box provided.

Spørgsmål 16
16.

People who have Alzheimer's disease experience an increasing loss of brain function and cognition over time. Alzheimer's is characterized by a building of abnormal protein fragments that damage brain cells. Recently scientists have discovered an enzyme, BACE2, that decreases these abnormal protein fragments in the brain of a person with Alzheimer's diseases.

Which statement explains how BACE2 most likely works?

Spørgsmål 17
17.

Short Answer: Enzymes -

Raw shrimp and fish can contain bacteria, including disease-causing bacteria. These bacteria, like all living organisms, contain proteins. Remember proteins are vital to the health and functioning of the organism.

a. Describe what occurs in disease-causing bacteria when shrimp and fish are cooked (on the grill, in the oven, on the stove, etc.)

and

b. Ceviche is a dish where raw shrimp and fish are soaked in lemon or lime juice, which has a very low pH, for many hours. Explain why it is safe to eat ceviche.

*Make sure your answers describe the reaction between the oven, enzymes, and proteins at play when food is cooked in the oven versus when it is made using the ceviche method.

Think about the scenarios carefully, then respond to BOTH A and B.

Spørgsmål 18
18.

The sweet taste of freshly-picked corn is due to the high sugar content in the kernels. Enzymes change about 50% of the sugar to starch within one day after picking. To preserve its sweetness, the freshly picked corn is immersed in boiling water for a few minutes, and then cooled.

Which statement most likely explains why the boiled corn kernels remain sweet?

Spørgsmål 19
19.

Which of the following is a true statement about the relationship between pH and enzyme activity?

Spørgsmål 20
20.

Based on the picture above, if Enzyme 2 stopped functioning, which of the following would occur?