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Biology > Deck 17 (321 - 340) > Flashcards

Deck 17 (321 - 340) Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q
  1. For the process of meiosis is typical:

a. formation of gametes
b. decreasing the number of only some of the chromosomes
c. replication of chromosomes
d. formation of diploid gametes

A

a. formation of gametes

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2
Q
  1. Proteins lacking a signal peptide sequence will probably be secreted from the cell:

a. true
b. false

A

b. false

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3
Q
  1. Nerve fibers of the spinal cord form:

a. white matter surrounding the grey matter
b. grey matter surrounded by the white matter
c. white matter surrounded by the grey matter
d. grey matter surrounding the white matter

A

white matter surrounding the grey matter

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4
Q
  1. Environmental science deals with:

a. protection and creation the environment of the man
b. the study of relationship among organisms and their living environment
c. economics of nature
d. structure and function of communities

A

protection and creation the environment of the man

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5
Q
  1. Crossing-over is:

a. the process of reduction of chromosomes
b. pairing of heteroloogous chromosomes
c. exchange of the parts of homologous chromosomes
d. crossing-over of heterologous chromosomes

A

exchange of the parts of homologous chromosomes

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6
Q
  1. According to the endosymbiotic theory, the infolding and specialisation of the plasma membrane led to the evolution of the end-membrane system. True or false?
A

false

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7
Q
  1. Spinal cord:

a. is a centre of visual and acoustic reflexes
b. is phylogenetically the youngest part of the nerve system
c. participates in controlling some of the autonomous functions
d. is a centre of the body balance

A

c. participates in controlling some of the autonomous functions

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8
Q
  1. Factors limiting borders between vitality and possibility of survival of individual species are called:

a. periodical
b. limiting
c. seasonal
d. ecological

A

b. limiting

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9
Q
  1. The results of mitosis are:

a. gametes
b. cells with diploid number of chromosomes
c. cells with haploid number of chromosomes
d. reduced cells

A

b. cells with diploid number of chromosomes

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10
Q
  1. The cytoskeleton includes all of the following except:

a. myosin filaments
b. microtubules
c. actin filaments
d. all of the above are included

A

a. myosin filaments

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11
Q
  1. Autonomous nerves:

a. only come out from the brain
b. only come out from the spinal cord
c. are a part of the vegetative nerve system, which is phylogenically younger than the somatic system
d. innervate internal organs and vessels

A

innervate internal organs and vessels

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12
Q
  1. Present classification of individuals of a given population in the area is called:

a. dispersion
b. habitus
c. density
d. age structure of population

A

dispersion

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13
Q
  1. Segregation of chromosomes during the meiosis I results in:

a. crossing-over of homologous chromosomes
b. identical genetic content of all the gametes
c. genetic variability of gametes
d. combination of chromosomes of maternal origin

A

genetic variability of gametes

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14
Q
  1. Ribosomes are found:

a. only in nucleus
b. in the cytoplasm
c. attached to the smooth endoplasmic reticulum
d. only in eukaryotic cells

A

b. in the cytoplasm

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15
Q
  1. Midbrain of mammals:

a. is the primary centre of movement coordination
b. regulates body temperature
c. conditions the upright position of head and body
d. mediates emotional manifestations

A

conditions the upright position of head and body

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16
Q
  1. The highest systemic unit in plant taxonomy is:

a. familia
b. divisio
c. regnum
d. species

A

c. regnum

17
Q
  1. The founder of the genetics is ..
A

Johan Gregor Mendel

18
Q
  1. The Golgi apparatus is involved in:

a. protein transport
b. packing of proteins
c. altering and modifying proteins
d. all of the above

A

d. all of the above

19
Q
  1. The centre regulating breathing is in the …
A

medulla oblongata

20
Q
  1. The lowest taxonomic unit is …
A

species

Biology (25 decks)

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