Question Details

SCI 220
WEEK 5
Question 1
 
 	Your answer is correct.
 	 
Which of the following is a role of the placenta in embryonic development?

 
 
It allows the passage of nutrients from the mother to the fetus.

 
It allows the passage of waste from the fetus to the mother.

 
It allows the passage of oxygen from the mother to the fetus.

 
All of the choices are roles of the placenta.

 	Question 2
 
 	Your answer is correct.
 	 
Which nutrient- needs are increased the most during pregnancy?

 
 
Protein

 
Fiber

 
Water

 
Carbohydrate




Question 3
 
 	Your answer is correct.
 	 
A baby is affected by gestational diabetes in the following ways EXCEPT:

 
 
The growing fetus receives more glucose

 
The growing fetus receives fewer calories

 
The growing fetus is at risk for a difficulty delivery

 
The growing fetus is at risk for being large for gestational age

Question 4
 
 	Your answer is correct.
 	 
The early embryo (before 5 weeks of age) gets nourished by

 
 
absorbing nutrients for the bloodstream of the mother (the bloodstream of the embryo mixes with the bloodstream of the mother).

 
breaking down the lining of the uterus.

 
transferring of nutrients from the placenta.

 
none of these.

Question 5
 
 	Your answer is correct.
 	 
Based on the information presented in this visual, why is a folate deficiency most critical during the embryonic period?
 

 
 
A folate deficiency is most critical during this period because vitamin B12 tends to be low during this time.

 
A folate deficiency is most critical during this period because iron stores in the mother have been depleted.

 
A folate deficiency is most critical due to the rapid cell division occurring during this period.

 
None of these are correct reasons.

Question 6
 
 	
 	 
Docosahexaenoic acid (DHA) and arachidonic acid (ARA) are added as supplements to fortify infant formulas. These fatty acids are added because of which potential benefits?

 
 
Teeth and skull development
 
Brain and retina development
 
Blood cell and immune system development
 
Heart and cartilage development
Question 7
 
 	
 	 
Which of the following can be found in breast milk but not infant formula?

 
 
Vitamin D
 
Calcium
 
Antibodies
 
Iron
Question 8
 
 	Your answer is correct.
 	 
The recommended distribution range of fat intake is _____ for 1- to 3-year-olds than for adults.

 
 
the same

 
lower

 
higher

 
dependent upon whether the child was breastfed or not

Question 9
 
 	Your answer is correct.
 	 
Candice is trying to eat healthier. Which substitution would be an example of a healthier decision?

 
 
Baked potato rather than French fries

 
Nachos with cheese sauce rather than nachos with bean dip

 
Meatball sub rather than a turkey sub

 
Glazed doughnut rather than an English muffin with jam

Question 10
Which of the following statements is correct?

 
 
At the end of puberty, teenage boys have a higher lean body mass and greater amount of body fat compared to their pre-pubescent state

 
At the end of puberty, teenage boys have a lower lean body mass and greater amount of body fat compared to their pre-pubescent state

 
At the end of puberty, teenage boys have a lower lean body mass and lower amount of body fat compared to their pre-pubescent state

 
At the end of puberty, teenage boys have a higher lean body mass and a lower amount of body fat compared to their pre-pubescent state

Question 11
 
 	Your answer is correct.
 	 
Children- energy and protein requirements __________ as they age.

 
 
Decrease

 
Remain the same

 
Increase

 
Vary depending on the child

Question 12
 
 	Your answer is correct.
 	 
Older adults should consume a diet that is _______ in protein relative to calories as compared to that of younger adults.

 
 
higher

 
lower

 
similar

Question 13
Which is the primary cause of food-borne illness?

 
 
Mercury

 
Microbes

 
Lead

 
Prions

Question 14
 
 	Your answer is correct.
 	 
Why are nitrites allowed in some foods even though they may form carcinogenic nitrosamines in the digestive tract?

 
 
Because they taste good.

 
Because they prevent botulism.

 
Because they improve the nutritional quality of the food.

 
Because they improve the food- texture.

Question 15
 
 	Your answer is correct.
 	 
Pregnant woman need to eat high quality protein like fish; however, they:

 
 
should limit fish consumption of certain fish such as cod and salmon due to the increased risk of mercury contamination

 
should limit fish consumption of certain fish such as swordfish, shark, and tile fish due to the increased risk of mercury contamination

 
should limit all fish consumption because of the risk of mercury contamination in certain species of fish

 
do not need to limit their fish consumption




SHOW ANSWER

Question 16
 
 	Your answer is correct.
 	 
Because _____ can be contaminated with botulism spores, it should never be fed to infants under 1 year of age.

 
 
cow- milk

 
eggs

 
honey

 
strawberries

Question 17
 
 	Your answer is correct.
 	 
The groundwater has been contaminated by an industrial pollutant. Which of the following animals will have the greatest concentrations of the pollutants?

 
 
Large fish

 
Microscopic animals

 
Small marine animals

 
Water plants

Question 18
 
 	Your answer is correct.
 	 
All of the following are correct about food insecurity EXCEPT

 
 
it is characterized by a widespread lack of food often due to a disaster.

 
it can result in protein-energy malnutrition.

 
it occurs when food is not distributed equitably.

 
it can lead to individual nutrient deficiencies.

Question 19
 
 	Your answer is correct.
 	 
Which of the following is true of under-nutrition?

 
 
Nutrient deficiencies lead to increased susceptibility to infections in childhood only

 
Nutrient deficiencies lead to decreased susceptibility to infections in childhood only

 
Nutrient deficiencies lead to increased susceptibility to infections in childhood and adulthood

 
Nutrient deficiencies lead to decreased susceptibility to infections in childhood and adulthood

Question 20
 
 	Your answer is correct.
 	 
In some cultures, the amount of food available to certain individuals is based on

 
 
age and gender.

 
birth order and genetic endowments.

 
educational level and control of income.

 
Each of these could contribute to the amount of food available to family members.

Question 21
 
 	Your answer is correct.
 	 
All of the following are advantages of organic farming as compared to conventional farming EXCEPT:

 
 
fewer pollutants are released into the environment.

 
higher crop yields.

 
increased biological diversity of crops.

 
reduced use of agricultural chemicals.

Question 22
 
 	Your answer is correct.
 	 
Golden rice is a genetically modified variety of rice developed to provide _______ to populations in which this deficiency is prevalent.

 
 
calcium

 
iodine

 
iron

 
vitamin A