20 UTUL Biology 2016

 1. The tissue in the lungs that allows gas exchange by diffusion is .... A. str

atified cuboidal epithelium B. simple cuboidal epithelium C. simple squamous epithelium D. stratified squamous epithelium E. simple columnar epithelium 

2. The best location to study the response of organisms to changes in abiotic factors and their coexistence is .... A. grasslands B. intertidal zones C. rivers D. tropical forests E. eutrophic lakes 

3. The characteristic of reptiles that allows for the transition from aquatic to terrestrial habitats is .... A. hard scaly skin B. triple heart C. double circulatory system D. amniotic eggs E. nictitating membrane 

4. The body organs that develop from the ectoderm layer are .... A. epidermis, nervous system, and excretory system B. epidermis, dermis, and nervous system C. epidermis, nervous system, and sensory system D. dermis, sensory system, and excretory system E. dermis skin, nervous system, and sensory system 

5. The condition that causes alleles carrying preferred traits to appear frequently in a population is .... A. mutation B. natural selection C. genetic drift D. non-random mating E. recombination and selection 

6. The following pair shows the location where glycolysis occurs in eukaryotic cells and the process that produces 2 ATP molecules is .... A. cytosol - phosphorylation B. cytosol - substrate-level phosphorylation C. mitochondrial matrix - cellular respiration D. mitochondrial cristae - oxidative phosphorylation E. mitochondrial matrix - oxidative phosphorylation

7. The hybridoma technique can be used to create new species and map chromosomes. REASON The hybridoma technique involves the fusion of two cells from different species of organisms. The answer is E 

8. During fasting, glycogen in the liver is broken down into glucose, but glycogen in the muscles is not. REASON The body's glucose needs during fasting can be met by the breakdown of glycogen in the liver. The answer is C 

9. Microorganisms can quickly respond to environmental changes. REASON Microorganisms have well-coordinated enzyme systems. The answer is C 

10. Biotechnology in agriculture can produce transgenic plants that are resistant to pests and diseases. REASON Transgenic plants can be produced by inserting the lactoferrin gene, making them resistant to pests and diseases. The answer is A 

11. DNA structure stability is better when the DNA chain contains many cytosine and guanine base pairs. WHY The nitrogenous bases cytosine and guanine are stronger than those of adenine and thymine. The answer is A. 

12. Comparisons of the skeletons and skulls of hominids and modern humans do not support evidence of evolution. WHY There are no similarities in the anatomical structure of the skulls and skeletons of hominids and modern humans. The answer is E.

13. The exact cause of cancer is unknown because it is a combination of factors. CAUSE The risk of cancer can be triggered by genetic factors, the environment, diet, hormonal imbalances, and free radicals. The answer is A 

14. Phospholipids are molecules that are well-suited as the main components of plasma membranes. CAUSE Phospholipids have a hydrophilic head and a hydrophobic tail. The answer is A 

15. Climate change will cause changes in the structure and function of marine ecosystems. CAUSE At different depths, temperature affects marine ecosystems. The answer is B 

16. A plant has large flowers, brightly colored corollas, and is odorless. The correct statement regarding plant pollination is... (1) wind acts as a pollinator (2) pollinators obtain nectar from flowers (3) pollinators are nocturnal insects (4) pollinators are attracted to visual stimuli The answer is C 

17. Organisms are classified based on similarities... (1) phylogeny (2) behavior (3) structure (4) organ function The answer is B 

18. Pay attention to the following statements! (1) consists of two cell cycles that occur sequentially (2) in one cycle there are two DNA replications (3) each cycle occurs two cytoplasmic divisions (4) one cycle of meiosis produces genetically identical haploids The correct statement regarding meiotic cell division is indicated by number .... The answer is B 

19. Leaves that are protected from light have the following characteristics: (1) thick leaf blades (2) layered palisade leaves (3) few intercellular spaces between spongy tissue (4) the proportion of spongy tissue is greater than the proportion of palisade tissue The answer is A 

20. The correct statement regarding Pteridophyta reproduction is .... (1) mature sporophytes produce sporophylls (2) the sporophyte generation is more dominant than the gametophyte generation (3) asexual reproduction can occur via rhizomes (4) the sporophyte generation forms antheridia and archegonia The answer is C