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SAMPLE TEST QUESTIONS

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Which of the following occurs in the mitochondria?

A) Oxygen is made   B) Sugar is made   C) Energy is made    D) Both A and B    

 

Which of the following is the correct order of the three stages of aerobic respiration?

A) Citric acid cycle, electron transport, glycolysis

B) electron transport, glycolysis, Citric acid cycle

C) glycolysis, citrc acid cycle, electron transport

 

 Which of the following is NOT a product of aerobic respiration?

A) CO2   B) ATP   C) Oxygen   D) NADH  

 

Which of the following is true of fermentation?

A) Humans cannot ever perform fermentation.

B) Animals can produce alcohol by fermentation.

C) Animals produce lactic acid by fermentation.

 

 Glycolysis occurs in the __________ and the Citric acid cycle occurs in the __________.

A) mitochondria; mitochondria   B) cytoplasm; cytoplasm   C) cytoplasm; mitochondria

D) mitochondria; cytoplasm   E) cytoplasm; nucleus

 

 The Citric acid cycle is carried out during:

A) aerobic respiration.  B)  anaerobic respiration.

 

ATP, NADH and FADH2 :

A)  Are energy carries in respiration  B) Are energy carries in photosynthesis 

 

 NADH  is produced during:  A) glycolysis.   B) the citic acid cycle.   C) the electron transport chain.  

D) both A and B   E) The calvin cycle

 

Which of the following is not a C4 plant?    A) corn B)  crabgrass C)  hedges D)  sugar cane  E) pineapples

 

Which of the following is a CAM plant?

A) corn   B)  honey suckle   C)  cacti    D)  butter beans   E)  polk salad

 

 We need oxygen to:   A) Oxidize sugar to give us energy  B)  grow plants

 

Oxygen is created during

A) the light dependent reactions of photosynthesis.

B) the light independent reactions of photosynthesis.

C) aerobic respiration.  D) both A and B      E) A, B, and C

 

What actually absorbs the light used to drive photosynthesis?

A) stomata   B) chloroplasts C) chlorophyll  D) thylakoids 

 

Which of the following statements is true?

A) The shortest wavelength of light is the infrared ray, which is the highest in energy.

B) The longest wavelength of light is the infrared ray, which is the highest in energy.

C) The shortest wavelength of light is the ultraviolet ray, which is the highest in energy.

D) The longest wavelength of light is the ultraviolet ray, which is the highest in energy.

E) The shortest wavelength of light is the visible light, which is the highest in energy.

 

 Photosynthesis is driven by the __________ light spectrum.

A) ultraviolet B)  visible C)  infrared D)  A or B  E)  A, B, or C

 

How many photosystems have electrons excited by sunlight during photosynthesis?

A) 1     B)   2     C)  3     D)  4      E)  5

 

Which of the following is/are true of plants?

A) They can create their own sugars using photosynthesis.

B) They can create their own sugars using respiration.

C) They can create their own sugars using fermentation.

 

In the two processes (cellular respiration or photosynthesis) CO2 is created during:

A) the light dependent reactions of photosynthesis.

B) the light independent reactions of photosynthesis.

C) aerobic respiration.   D) anaerobic respiration    E) both C and D

 

 During photosynthesis, energy is released and used to create ATP when

A) water is split releasing oxygen.

B) CO2 is fixed into sugars in the light independent reactions.

C) CO2 is fixed into sugars during the light dependent reactions.

D) electrons are passed down the energy hill during the light dependent reactions.

 

Which type of photosynthesis do the majority of plants use?

A) C3      B) C4    C) CAM   

 

During the Calvin cycle, plants

A) fix CO2 into sugar.   B) oxidize H2O to oxygen.   C) create ATP.  

D) both A and B   E) A, B, and C

 

What is chromatin?

A) a single strand of DNA that will be a template in replication

B) the cell center for organizing microtubules

C) the structure that lies outside the plasma membrane of a plant cell

D) a combination of uncondensed DNA and the protein around which it is wrapped  

What is being separated during anaphase of mitosis?

A) centrosomes   B) sister chromatids   C) nuclear membranes  

D) cytoplasm   E) plasma membranes

 

37) Which cell structure physically moves the cell's chromosomes?

A) the microtubule spindle   B) the cell plate   C) the cell wall  

D) the contractile ring  E) the plasma membrane

 

38) If a cell contains 20 chromosomes, how many chromatids will be present during prophase?

A) 5 B)  10 C)  20 D)  30 E)  40

  

The seeds in a pod of one of Mendel's pea plants are:
A) each the result of a separate fertilization event.
B) genetically identical to each other and all other peas from that plant.
C) genetically identical to each other, but different from other peas in other pods.
D) produced only when a plant is self-fertilized.
E) produced only when a plant is cross-fertilized.

Gregor Mendel illustrated all of the following EXCEPT:
A) phenotypic characteristics do not "blend" over many generations.
B) inheritance is caused by discrete particles.
C) identical phenotypes do not necessarily mean organisms have identical genotypes.
D) units of inheritance come in pairs.
E) units of inheritance are found on chromosomes.

The genotype Yy is an example of:  A) a monohybrid genotype.  B) a dihybrid genotype.  C) a heterozygous genotype. 
D) a homozygous genotype.  E) both A and C 


Widows peak hairline in humans is dominant to non-widows peak hairline. If a person has a widows peak hairline, what is his or her genotype?
A) It must be homozygous dominant.
B) It must be homozygous recessive.
C) It is either homozygous dominant or homozygous recessive.
D) It must be heterozygous.
E) It is are either heterozygous or homozygous dominant.

Use this information for the four questions below.

In humans, "unattached" earlobes are dominant over "attached" earlobes. "Widows peak" hairline is dominant over "non-widows peak" hairline. Use E and e for the earlobe phenotype alleles, and W and w for the hairline phenotype alleles.

A female and a male, both with unattached earlobes, have a child with attached earlobes. What is the probability their next child will have attached earlobes?
A) 4/4   B) 3/4    C) 2/4    D) 1/4     E) 0

A female and a male, both with genotype EeWw have a child. What is the probability it will have attached earlobes and a widows peak hairline?
A) 9/16        B) 3/16        C) 1/16      D) 1/3       E) 3/4

A female and a male, both with genotype EeWw have a child. What is the probability it will be a boy, and have attached earlobes and a nonwidows peak hairline? (be carefull on this one---remember to add sex probability) { 1/16  x  1/2 = 1/32}
A) 1/6    B) 3/16    C) 1/16    D) 1/32    E) 3/32

A female with unattached earlobes and a widows peak hairline and a male with attached earlobes and a widows peak hairline have a child. The child has attached earlobes and a non-widows peak hairline. What are the genotypes of the parents?
A) EeWw and eeww    B) EeWw and eeWw
C) EEWW and eeww   D) EEWW and eeWw
E) EeWw and EeWW

What is the physical basis for the independent assortment observation that Mendel made?
A) Male and female gametes are produced in separate organs in separate individuals.
B) There are two chromosome divisions in meiosis.
C) Recombination (crossing over) occurs in meiosis.
D) Homologous chromosomes are randomly separated during meiosis I.
E) Sister chromatids do not separate until meiosis II.

The following are problems involving sex-linked traits whereby the principles for solution will be demonstrated in the lecture Monday

A female who does not carry the color blindness allele has children with a male who is color blind. What proportion of their children will be color blind? (the mother will give normal genes to all the children which is diminant)
A) all   B) 1/4    C) 1/2    D) 3/4    E) none

A female is not color blind, but half her sons are. Her daughters are not color blind. Which conclusion is correct?
A) The father is color blind.
B) The father is not color blind, but is heterozygous for the color blindness gene.
C) The woman is heterozygous for the color blindness gene.    {Her alleles have to be X (normal)  and X (colorblind)} she is a carrier and she gives the X(s) to the boys.  The father cannot carry the gene and can only give the Y to make them male}  
D) Color blindness is dominant.
E) Color blindness is autosomal.

A recessive gene that is on a human X chromosome
A) will be expressed equally by males and females.
B) is more likely to be expressed in females.
C) is more likely be expressed if it is heterozygous.
D) is more likely to be expressed by males. (remember the males needs a matching hmologous chromosome with dominant genes---but the Y chromosome is short and does not have all the alleles needed to pair-----thus recessive genes on the X chromosome can now be expressed)
E) will never be expressed in females.

X-linked (sex-linked) conditions are caused by
A) proteins that damage the X chromosome.
B) genes that only females have.
C) genes that only males have.
D) inheritance of an extra X chromosome.
E) genes on the X chromosome.

 A female is "O" negative. Her husband is "O" positive and his mother was "O" negative.  What are the chances the children will be "O" negative?  50/50 because he is hertozygous positive (+  and  - ) positive is doninant  ( + and - ) plus ( - and - ) = 2 positive and 2 negative