Biology-Invitational A 2012

Question 1

Which of the following is the primary function of the nucleus?
A)production of proteins
B)storage of water
C)production of materials to add to the cell membrane
D)storage of DNA
E)storage of ribosomes

Answer 1

D

Question 2

Which of the following would diffuse through the plasma membrane the easiest?
A) glucose
B) O2
C) DNA
D) ATP
E) hemoglobin

Answer 2

B

Question 3

The basic building blocks of proteins are?

Answer 3

Amino acids

Question 4

Various forms of a gene at a specific locus are called

Answer 4

Alleles

Question 5

What is the process called when a polypeptide is synthesized from mRNA?

Answer 5

Translation

Question 6

What is the distinguishing characteristic of a prokaryote?

Answer 6

They do not have a neucleus

Question 7

Which of the following is NOT a classification within the plant kingdom?
A) sexually reproducing
B) nonvascular
C) seed-producing
D) flowering
E) conifers

Answer 7

A

Question 8

Which of the following phyla of animals have the largest number of species?
A) Chordata
B) Mollusca
C) Arthopoda
D) Echinodermata
E) Nematoda

Answer 8

C

Question 9

The area where dividing cells produce new cells for the growing plant shoot or root tip is called the?
A) radicle
B) cotyledon
C) cap
D) apical meristem
E) epidermis

Answer 9

D

Question 10

Plants differ from animals in that their growth is?
A) uncontrolled
B) stunted
C) indeterminate
D) influenced by the environment
E) determinate

Answer 10

C

Question 11

Which plant hormone is responsible for phototropism?

Answer 11

Auxin

Question 12

Which of the following organs of the human digestive system carries out the most mechanical digestion of food?
A) mouth
B) esophagus
C) stomach
D) small intestine
E) large intestine

Answer 12

C

Question 13

For all organisms, gas exchange between the body and all the environment takes place by the process of...?
A) active transport
B) osmosis
C) facilitated diffusion
D) passive transport
E) simple diffusion

Answer 13

E

Question 14

Which of the following animals has a two chambered heart?
A) frog
B) snake
C) cat
D) human
E) fish

Answer 14

E

Question 15

Which of the following is 
NOT an endocrine gland?
A) pituitary gland
B) thyroid gland
C) salivary gland
D) thymus gland
E) adrenal gland

Answer 15

C

Question 16

The type of muscle found in the wall of the aorta is...?
A) striated
B) smooth
C) cardiac
D) skeletal
E) none of the above

Answer 16

B

Question 17

An insect and a flowering plant that the insect pollinates provide an example of which type of evolution?
A) convergent evolution 
B) divergent evolution
C) neutral evolution
D) coevolution 
E) maldaptive evolution

Answer 17

D

Question 18

Which of the following steps in human evolution appears to have occurred first?
A) development of language
B) large brain
C) use of tools
D) development of culture
E) erect stance

Answer 18

E

Question 19

A food chain consists of which of the following?
A) producers and consumers, but not herbivores
B) producers and herbivores only
C) the species through which organic molecules pass
D) the species which produce but do not consume
E) all of the organisms in a particular habitat

Answer 19

C

Question 20

The greatest reduction of human population in the world was…

Answer 20

The bubonic plague