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 be...
BIOLOGY CUMULATIVE
EXAM QUESTIONS WITH
DETAILED ANSWERS | A+
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, 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 - ANS Active transportation
Which best illustrates the result of the process of meiosis?
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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. - ANS A daughter looks different from both her
mother and her father.
common function?
1. organ
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Which level of organization is characterized by a group of cells that work together to perform a
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2. tissue
3. organ system
4. organism - ANS tissue
Which best describes a codon?
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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 - ANS the sequence of three bases
that codes for a specific amino acid
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Which is the final electron acceptor in the electron transport system of cellular respiration?
1. NADH
2. FADH2
3.oxygen
4.carbon dioxide - ANS 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?
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