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WorksheetsState Test Review Quiz 1
Total questions: 10
Worksheet time: 12mins
Scientists agree on four to eight characteristics that distinguish living organisms from nonliving objects. Which one characteristic below would cause scientists to determine that an unknown object is living as opposed to nonliving?
the observation of movement
the presence of one or more cells
the presence of organic macromolecules, such as carbohydrates, lipids, proteins, or nucleic acids
the ability of the object to use energy
Which two organelles could be found in plant cells but not in animal cells?
chloroplasts
cell membrane
centrioles
ribosomes
cell wall
Meiosis produces sperm cells in males and egg cells in females. Which processes that occur in meiosis contribute the most to genetic variation in offspring?
independent assortment of homologous chromosomes and crossing over
DNA and RNA replication during interphase
tetrad formation of paired homologous chromosomes and their alignment at the equatorial plate
disjunction and polar migration of homologous chromosomes
There is debate on whether viruses are living or nonliving. Which two characteristics of viruses give the best support that viruses could be classified as living organisms?
they are surrounded by a protein coat
they contain genetic information in the form of either DNA or RNA
they are specific in the type of cell they can infect
they evolve over time through mutations in their genetic code
they do not seek food or energy to grow and develop on their own
Cells that make up the heart muscle must supply constant energy to keep the heart pumping. When compared to skin cells that need much less energy, the cells of the heart would have more of which organelle?
vacuoles
lysosomes
centrioles
mitochondria
Which of the following scientists is credited with completing the tenets of cell theory?
Rudolf Virchow, who published his findings that every cell comes from a preexisting cell.
John Needham, who concluded that microorganisms could be created in the presence of chicken broth
Robert Koch, who established that many diseases were caused by bacteria
James Watson and Francis Crick, who determined the double-helix structure of DNA within a cell
The heart contains several types of tissues that work together to perform a specific function. The heart represents which level or organization within an organism?
a tissue
a cell
an organ
an organ system
Which of the following accurately describes how aerobic and anaerobic cellular respiration are different?
anaerobic respiration requires energy, but aerobic respiration doesn't
anaerobic respiration takes place in the nucleus of a cell, but aerobic respiration occurs in the cytoplasm
aerobic respiration requires oxygen, but anaerobic respiration doesn't
aerobic respiration occurs only in animals, but anaerobic respiration occurs only in plants
During interphase of the cell cycle, a growing cell undergoes DNA replication. What is the primary function of DNA replication?
to create haploid sex cells to be used in reproduction
to edit the DNA code and correct mistakes
to add genetic variation through mutations and the process of crossing-over
to provide an exact copy of DNA to daughter cells once the cell divides
In humans, brown eyes (B) are dominant, and blue eyes are recessive (b). If a homozygous dominant male is crossed with a heterozygous female, what are the most likely genotypes of the offspring?
100 % homozygous dominant
100% heterozygous
50% homozygous dominant, 50% heterozygous
50% homozygous dominant, 50% homozygous recessive
