12 Jun BIO 101 – Which molecule is a product of the reaction
Question
1.Which molecule is a product of the reaction between sucrose and sucrase?
fructose
ribose
galactose
dextrose
2.Which piece splits apart during a reaction that is catalyzed by an enzyme?
active site
substrate
activation energy barrier
enzyme
3.True or false: The basal metabolic rate represents the energy use of a sleeping person.
True
False
4.Kendra has a metabolic rate of 1800 calories per day without exercise. She eats 1700 calories per day and exercises to burn 300 calories each day. Over time, how will Kendra’s weight be affected?
She will lose weight.
She will raise her metabolism.
She will gain weight.
She will lower her metabolism.
She will maintain her weight.
5.Kendra has a metabolic rate of 1800 calories per day without exercise. She eats 1700 calories per day and exercises to burn 300 calories each day. Over time, how will Kendra’s weight be affected?
She will lose weight.
She will raise her metabolism.
She will gain weight.
She will lower her metabolism.
She will maintain her weight.
6.True or false: Phosphorylation is the process by which ATP gains energy.
True
False
7.Which statement defines your body’s metabolic rate?
The speed at which enzymes catalyze chemical reactions in your body
All of the chemical reactions in your body
The speed at which chemical reactions occur when you are resting but awake
The number of Calories needed to keep your weight stable
8.Which health condition is a risk for severely underweight individuals?
sterility
atherosclerosis
hypertension
diabetes
9.True or false: One enzyme can catalyze only one specific type of reaction.
True
False
10.Which action could help you to increase your metabolic rate?
Reducing exercise so that your body stores more energy.
Eating a balanced diet that includes all essential vitamins.
Getting a sufficient amount of rest.
Reducing protein intake to lose weight.
11.Which statement about enzymes is true?
Enzymes eliminate the activation energy barrier.
The shape of an enzyme determines its specificity.
An enzyme molecule is permanently changed by the substrate molecule.
One enzyme can catalyze many different types of reactions for a variety of substrates.
12.How does an enzyme affect an activation energy barrier?
It raises the barrier.
It lowers the barrier.
It has no effect on the barrier.
It completely removes the barrier.
13.How does an enzyme affect an activation energy barrier?
It raises the barrier.
It lowers the barrier.
It has no effect on the barrier.
It completely removes the barrier.
14.Which condition are underweight individuals at a higher risk of developing?
stroke
diabetes
heart attack
osteoporosis
15.What is activation energy?
The energy released when a substrate binds to an active site.
The energy required to raise the temperature of 1 gram of water by 1 degree Celsius.
The energy required to start a metabolic reaction.
The energy used by the active site to split a substrate.
16.Stephanie is slightly overweight. Her metabolism is slower than average, and she is not good at limiting her calorie intake. What would be the best method for her to begin to lose weight without changing her diet?
Stephanie can participate in aerobic exercises followed by weight training.
Stephanie can stay awake longer , to burn more calories for the day.
Stephanie can undergo gastric bypass surgery.
Stephanie can use a chocolate-flavored dietary supplement in place of natural food.
17.In general, muscle cells in animals have more mitochondria than other cell types. Why might muscle cells need more mitochondria?
Mitochondria provide internal support for muscle cells and help to increase the strength of a muscle.
Muscle contraction uses a large amount of ATP.
Muscle cells are larger and, therefore, have more mitochondria in their cytoplasm.
Muscle cells take in more protein, which must be converted into ATP for energy.
18. Part A Metabolic rate is affected by exercise habits, genetics, and biological sex.
False
True
Part BBMI tables categorize people on the basis of
height and weight.
body fat percentage and healthfulness.
weight, height, and gender.
body fat percentage and height.
Part C Anorexia
involves binge eating followed by purging.
can lead to permanent sterility and osteoporosis.
involves permanent weight loss caused by the use of laxatives.
All of the above are true.
Part DA meta-analysis is
an analysis of all funded and unfunded research on a particular subject.
the mean score of a group of study participants.
an analysis that uses only positive controls.
a statistical technique used to combine the results of many studies.
Part E Being in the overweight BMI classification is strongly correlated with many health risks and early death.
True
False
19.How will the use of calories differ for people performing the same activity?
Older men will generally burn more Calories than younger men.
A woman eating processed foods will generally burn more Calories than a woman eating whole foods.
Men will generally burn more Calories than women.
Thinner women will generally burn more Calories than heavier women.
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