HS Bio Unit 1-2 Review

Multiple Select

What 2 substances are reactants in photosynthesis?

• carbon dioxide

• water

• sugar

• oxygen

Multiple Choice

What happens last during photosynthesis?

• chlorophyll absorbs sunlight

• oxygen and ATP are made

• sugar molecules form

Multiple Choice

What happens first during cellular respiration?

• the breakdown of food molecules into smaller molecules.

• The formation of ATP

• The movement of small molecules into a mitochondrion

• The breakdown of small molecules into carbon dioxide

Multiple Choice

Which statement summarizes a way that an other-feeder gets food?

• bacteria take in food that has been digested by an animal

• moss takes in energy from sunlight

• phytoplankton carry out photosynthesis

Multiple Choice

Which statement best describes an organ?

• different tissues working together to perform a function

• the most complex level of organization

• cells of one type working together to perform a function

• the simplest level of organization

Multiple Select

If an organism lacks tissues, what other 3 things must it lack?

• organ systems

• organs

• cells

• skin

• a

Multiple Select

Which of the following are plant organs? Select ALL that apply

• root

• shoot

• stem

• leaf

Multiple Select

What 2 ways does a squirrel's nervous system help its body's cells get nutrients?

• controls heartbeat that moves nutrients through body

• controls movement of food through digestive system

• controls muscles and allows escape from danger

• controls breathing rate to regulate carbon dioxide

Multiple Choice

Which external stimulus are your eyes best able to detect?

• motion of a snake

• smell of a cookie

• sound of a car

• taste of a strawberry

Multiple Choice

How does laying on a rock help a lizard maintain homeostasis?

• keeps the body temperature from getting too low

• allows lizard to get rid of extra heat

• helps the lizard get rid of harmful bacteria

Multiple Choice

Which tropism causes the roots of seedlings to grow downward?

• gravitropism

• hydrotropism

• phototropism

• thigmotropism

Multiple Choice

What is a chromosome?

• a specific trait

• a strand of genetic material

• a form of a gene

Multiple Select

What are the 3 parts of interphase?

• G1

• S

• G2

• M

Multiple Select

What are 2 ways that mitosis and meiosis different?

• meiosis results in a reduction in chromosome number

• mitosis results in a reduction in chromosome number

• mitosis produces 2 cells and meiosis produces 4 cells

• meiosis produces 2 cells and mitosis produces 4

Multiple Choice

What is an allele?

• a version of a gene

• a group of chromosomes

• a type of virus

• strands of DNA wrapped around proteins

Multiple Choice

What determines genotype?

• alleles passed from parent to offspring

• amount of sleep

• number of offspring

• food eaten

Multiple Choice

What makes a dominant allele different from a recessive allele?

• dominant always mixes with recessive

• dominant determines trait

• dominant must have 2 to be expressed

• recessive determines trait

Multiple Choice

What is true of the allele pair of someone with a genotype TT?

• 2 different forms of the gene

• homozygous dominant

• heterozygous

• homozygous recessive

Multiple Choice

What is the purpose of a Punnett square?

• Predicting outcomes of genetic crosses

• Finding out if a trait is dominant or recessive

• Predicting number of children

• f