Category 4 Question Preview (ID: 38027)
Based On EOC Category 4.
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Plant hormones serve as chemical messengers between cells and tissues. Auxin is a plant hormone that causes the cells on the shady side of a plant shoot to elongate. The response enabled by auxin is known as-
a) geotropism
b) transpiration
c) phototropism
d) photosynthesis
Which of the following corrrectly describes how a diagram of cellular respiration would differ from a diagram of photosynthesis?
a) The cellular-respiration diagram would show electromagnetic waves as the final product
b) The cellular-respiration diagram would show glucose as the main source of energy
c) the cellular-respiration diagram would show energy stored ina large protein molecules
d) the cellular-respiration diagram would show water as the main source of chemical energy
Enzymes are proteins that help increase the rate of chemical reactions inside cells. These proteins are composed of many simpler molecules called amino acids. Which suggests that the shape of an enzyme determines the enzyme's function?
a) Enzymes are specific to a substrate
b) Enzymes can operate in a wide range of condidtions
c) Enzymes are activated by neighboring molecules
d) Enzymes can be found in all life-forms
Leaves are part of a plant's shoot system. The xylem tissue in leaves transports-
a) The bacteria needed for nitrogen fixation in root nodules
b) the wax required to coat the surface of actively growing tissue
c) the water and minerals that are absorbed by the roots
d) the oxygen that regulates the rate of carbohydrate production
Health-care workers are exposed to many different types of pathogenic and nonpathogenic microorganisms Which body systems work together to protect the body from pathogens?
a) Muscular and vascular
b) Digestive and excretory
c) Circulatory and immune
d) Endocrine and reproductive
THe human digestive system is approximately 900 cm long. Food is moved through the digestive tract primarily by-
a) bile produced by the pancreas
b) the enzymes amylase and pepsin
c) muscular contractions
d) hydrochloric acid in the stomach
Changes in water pressure within guard cells cause the cells to open or close the stoma. This response helps the plant maintain homeostasis by-
a) Stabilizing the plant's temperature through the evaporation of water
b) Regulating the amount of water the plant loses during transpiration
c) Allowing oxygen needed for photosynthesis to enter the plant
d) Enabling the plant to release more carbon dioxide at night for photosynthesis
What two human systems work together to provide body cells with a constant supply of oxygen while removing carbon dioxide waste products?
a) Nervous and endocrine
b) Muscular and skeletal
c) Respiratory and circulatory
d) Excretory and integumentary
Which of the following functions at the same organizational level as the kidney in the human excretory system?
a) Skeleton
b) Epithelial tissue
c) Urinary bladder
d) A squamous cell
Diatoms are one of the most common types of phytoplankton in marine habitats. Like plants, diatoms contain chlorophyll and produce glucose from which of the following?
a) O2 and ATP
b) CO2 and O2
c) ATP and H2O
d) CO2 and H2O
A science class is planning a field trip to the local farm that has a large pond. Which of the following lists the order biological organization from the smallest to the largest that the students can expect to find at the pond?
a) Organism, community, population, ecosystem
b) Organism, population, community, ecosystem
c) population, organism, community, ecosytem
d) Population, organism, ecosystem, community
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