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Southern New Hampshire University - BIOLOGY 101 1)Tobacco smokers (and those exposed to tobacco smoke) are at greater risk of an ectopic (tubal) pregnancy

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Southern New Hampshire University - BIOLOGY 101

1)Tobacco smokers (and those exposed to tobacco smoke) are at greater risk of an ectopic (tubal) pregnancy. Based on your understanding of the structures of the cytoskeleton, what is the best explanation?

Tobacco interferes with the functioning of the flagella propelling sperm.

Tobacco interferes with the transfer of oxygen to the uterus, thereby forcing the zygote to implant in a fallopian tube.

Tobacco smokers tend to get pregnant when they are younger.

Tobacco interferes with the sweeping motion of cilia that aids in the movement of the egg toward the uterus.

 

 

2. You are riding on your bike and stop pedaling, coasting along the road. Eventually, your bike slows down and stops. What happened to the energy of your motion when your bike stopped?

 

It was released as heat.

It was used to chemically break down the tires. It was returned to the bicycle.

It was converted back to chemical energy.

 

 

3. In plant cells, may contain organic nutrients, pigments, and poisons.

 lysosomes

mitochondria

central vacuoles chloroplasts

 

4. Similar to the nucleus, chloroplasts and mitochondria are         .

green

manufactured by the nucleolus

surrounded by two membranes

able to synthesize lipids

 

5. Information is transferred from the nucleus to ribosomes via .

 

DNA

mRNA

rough endoplasmic reticulum

 

 

6. Which theory states that all living things are composed of cells?

 

Mendel's law evolutionary theory

cell theory

Hooke's rule

 

 

7. Which of the following is a function of the Golgi apparatus?

protein modification

drug detoxification protein synthesis

digestion of organic matter inside the cell

 

 

8. What compound directly provides energy for cellular work? C6H12O6

DNA

Fat

 ATP

 

 

9. What is energy?

 

the capacity to cause change

 a measure of disorder

the capacity to cause movement

 a measure of calories

 

10. In a hypotonic solution, a plant cell will            . 

burst

become flaccid

become turgid

undergo plasmolysis