Biology cumulative exam question with answers
Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform
photosynthesis. Magnesium is an important component of chlorophyll. The concentration of magnesium
ions is higher in the root-hair cells of plants than in the soil. Which mechanism of ion uptake would best
enable a plant to produce a steady supply of chlorophyll?
1. osmosis
2. diffusion
3. passive transport
4. active transport - -Active transportation
-Which best illustrates the result of the process of meiosis?
1. A pea plant has the same flower color as its parent plants.
2. A daughter looks different from both her mother and her father.
3. A cheetah cub has very similar fur to its mother.
4. A Labrador puppy looks exactly like its father. - -A daughter looks different from both her mother and
her father.
-Which level of organization is characterized by a group of cells that work together to perform a
common function?
1. organ
2. tissue
3. organ system
4. organism - -tissue
-Which best describes a codon?
1. a cell structure that gives the master instructions for an organism
2. a segment of DNA that is the basis of heredity in organisms
3. the sequence of three bases that codes for a specific amino acid
4. the basic unit of structure and function of all living things - -the sequence of three bases that codes
for a specific amino acid
-Which is the final electron acceptor in the electron transport system of cellular respiration?
1. NADH
2. FADH2
3.oxygen
4.carbon dioxide - -oxygen
-Sheela wants to make a computer model of a land ecosystem. Part of her model simulates the
chemical processes of photosynthesis that involve the creation of sugars. Which chemical processes are
these?
, 1.the light-dependent reactions
2.the light-independent reactions
3.the daylight reactions
4.the reactions in the mitochondria - -the light-independent reactions
-The equations summarize the process of fertilization. Which equation represents fertilization?
1. haploid + diploid = diploid
2. diploid + haploid = haploid
3. haploid + haploid = diploid
4. diploid + diploid = diploid - -haploid + haploid = diploid
-The Venn diagram compares aerobic respiration and anaerobic respiration.
Which statement could be categorized in the overlapping section of the Venn diagram?
1. uses pyruvic acid
2. has commercial uses
3. regenerates NADH
4. produces 36 ATP - -uses pyruvic acid
-Mendel's pea plants had either purple or white flowers. This means that the plants
1. can self-pollinate.
2. have two recessive traits.
3. have two alleles for the gene.
34have two copies of a gene from one parent. - -have two alleles for the gene.
-Which are different forms of the same gene?
1. genotypes
2. phenotypes
3. alleles
4. traits - -alleles
-Mendel was able to study seven traits in all the pea plants in each generation. Which of his hypotheses
allowed him to analyze each trait separately?
1. If two different alleles for a gene occur together, one of the alleles may be expressed while the other
is hidden.
2. When gametes are formed, each gamete carries only one allele for the gene.
3. There are alternate versions of a alleles called genes.
4. For each inherited trait, there is only one copy of the gene that codes for that trait. - -When gametes
are formed, each gamete carries only one allele for the gene.
-A lion eating a zebra is an example of which characteristic of life?
1. having cells
Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform
photosynthesis. Magnesium is an important component of chlorophyll. The concentration of magnesium
ions is higher in the root-hair cells of plants than in the soil. Which mechanism of ion uptake would best
enable a plant to produce a steady supply of chlorophyll?
1. osmosis
2. diffusion
3. passive transport
4. active transport - -Active transportation
-Which best illustrates the result of the process of meiosis?
1. A pea plant has the same flower color as its parent plants.
2. A daughter looks different from both her mother and her father.
3. A cheetah cub has very similar fur to its mother.
4. A Labrador puppy looks exactly like its father. - -A daughter looks different from both her mother and
her father.
-Which level of organization is characterized by a group of cells that work together to perform a
common function?
1. organ
2. tissue
3. organ system
4. organism - -tissue
-Which best describes a codon?
1. a cell structure that gives the master instructions for an organism
2. a segment of DNA that is the basis of heredity in organisms
3. the sequence of three bases that codes for a specific amino acid
4. the basic unit of structure and function of all living things - -the sequence of three bases that codes
for a specific amino acid
-Which is the final electron acceptor in the electron transport system of cellular respiration?
1. NADH
2. FADH2
3.oxygen
4.carbon dioxide - -oxygen
-Sheela wants to make a computer model of a land ecosystem. Part of her model simulates the
chemical processes of photosynthesis that involve the creation of sugars. Which chemical processes are
these?
, 1.the light-dependent reactions
2.the light-independent reactions
3.the daylight reactions
4.the reactions in the mitochondria - -the light-independent reactions
-The equations summarize the process of fertilization. Which equation represents fertilization?
1. haploid + diploid = diploid
2. diploid + haploid = haploid
3. haploid + haploid = diploid
4. diploid + diploid = diploid - -haploid + haploid = diploid
-The Venn diagram compares aerobic respiration and anaerobic respiration.
Which statement could be categorized in the overlapping section of the Venn diagram?
1. uses pyruvic acid
2. has commercial uses
3. regenerates NADH
4. produces 36 ATP - -uses pyruvic acid
-Mendel's pea plants had either purple or white flowers. This means that the plants
1. can self-pollinate.
2. have two recessive traits.
3. have two alleles for the gene.
34have two copies of a gene from one parent. - -have two alleles for the gene.
-Which are different forms of the same gene?
1. genotypes
2. phenotypes
3. alleles
4. traits - -alleles
-Mendel was able to study seven traits in all the pea plants in each generation. Which of his hypotheses
allowed him to analyze each trait separately?
1. If two different alleles for a gene occur together, one of the alleles may be expressed while the other
is hidden.
2. When gametes are formed, each gamete carries only one allele for the gene.
3. There are alternate versions of a alleles called genes.
4. For each inherited trait, there is only one copy of the gene that codes for that trait. - -When gametes
are formed, each gamete carries only one allele for the gene.
-A lion eating a zebra is an example of which characteristic of life?
1. having cells
