QUESTION 1 An element with an atomic number of 18 would have how many protons? 8

Question

QUESTION 1

An element with an atomic number of 18 would have how many protons?                      

8         

9                     

18                   

36

QUESTION 2

The main building material for steroids is:              

cholesterol                 

carbohydrates

proteins          

nucleic acids

QUESTION 3

In a coupled reaction, endergonic reactions always release more energy than:                 

enzymatic reactions  

other endergonic reactions   

exergonic reactions               

none of these

QUESTION 4

Lipid bilayer is referring to:               

nucleus

nucleolus        

cell membrane                      

ribosome

QUESTION 5

An example of an autotrophic organism would be:

mushroom                 

grass              

bird     

any animal

QUESTION 6

What process occurs within the chloroplast?           

Krebs cycle     

glycolysis        

photosynthesis           

oxidative phosphorylation

QUESTION 7

Subatomic particles responsible for chemical bonds are:                

protons           

neutrons                     

isotopes         

electrons

QUESTION 8

Bonds formed as a result of sharing electrons are known as:                     

ionic               

covalent                     

hydrogen        

exergonic

QUESTION 9

A protein with a single 3-dimensional structure is:             

primary          

secondary       

tertiary                       

quaternary

  

QUESTION 10

Which of these is found in plant cells but not in animal cells?                   

mitochondria             

cell membrane                      

cristae

plastids

QUESTION 11

Production of polysaccharides from simple sugars is known as:     

glycogenesis              

lipogenesis     

gluconeogenesis

glycolysis

QUESTION 12

Where is chlorophyll located?           

thylakoid        

stroma

cell membrane                      

nucleus

QUESTION 13

What happens to a cell when it's placed in a hypotonic solution?              

dehydrates                 

swells             

remains the same     

reaches equilibrium

  

QUESTION 14

As water freezes is becomes:                       

more dense                

less dense                  

more cohesive           

less cohesive

QUESTION 15

A solution that release hydrogen is known as a(an):

acid

base               

salt                 

amino acid

2 points  

QUESTION 16

An acid and a base combine to form:

                       

a strong acid

                       

a strong base

                       

a weak acid                

a salt

QUESTION 17

To prevent wilting, plants accumulate water in a:   

chloroplast     

thylakoid        

vacuole                       

stroma

QUESTION 18

The most common form of stored fat in animals is:           

cholesterol                 

triglycerides   

glycogen                     

glycerol

QUESTION 19

Thin, invisible strands of DNA are known as:           

chromosomes

chromatin                  

ribosomes      

cristae

QUESTION 20

Hemoglobin is an example of what type of protein?                       

primary                      

secondary       

tertiary                       

quaternary

QUESTION 21

A solution with which pH would have the greatest number of hydrogens?            

3.0                  

5.5                  

7.0                  

12.0

  

QUESTION 22

Which of these requires the expenditure of energy?                       

simple diffusion         

facilitated diffusion   

active transport

osmosis

QUESTION 23

A type of biochemical reaction requiring energy is:             

exergonic                   

endergonic     

spontaneous              

enzymatic

  

QUESTION 24

Isotopes differ in the number of:      

protons           

neutrons         

electrons        

all of these

QUESTION 25

The site of lipid production is:                       

golgi   

mitochondria             

rough ER                    

smooth ER

Explanation / Answer

1. The element with atomic number 18 is Argon. It has 18 protons.

2 The main building material for steroids is Cholesterol

3. In a coupled reaction, endergonic reactions always release more energy than exergonic reactions               

4. Lipid bilayer is referring to cell membrane

5. An example of an autotrophic organism would be grass     

6.What process occurs within the chloroplast?

photosynthesis   

         

       

7.Subatomic particles responsible for chemical bonds are: electrons

8. Bonds formed as a result of sharing electrons are known as covalent                 

9. A protein with a single 3-dimensional structure is   Tertiary        

10. Which of these is found in plant cells but not in animal cells?   plastids

11 Production of polysaccharides from simple sugars is known as: glycogenesis             

12 Where is chlorophyll located?    thylakoid        

13 What happens to a cell when it's placed in a hypotonic solution? swells             

14. As water freezes is becomes more dense       

15. A solution that release hydrogen is known as a(an): acid

16. An acid and a base combine to form a salt

17. To prevent wilting, plants accumulate water in a vacuole       

18. The most common form of stored fat in animals is triglycerides  

19. Thin, invisible strands of DNA are known as chromatin               

20Hemoglobin is an example of what type of protein? quaternary

21. A solution with which pH would have the greatest number of hydrogens? 3.0  

22. Which of these requires the expenditure of energy? active transport

23. A type of biochemical reaction requiring energy is endergonic

24. Isotopes differ in the number of neutrons        

25. The site of lipid production is smooth ER

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