Biology Category 4 Quiz
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40 questions
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- Q1Health-care workers are exposed to many different types of pathogenic and nonpathogenic microorganisms. Which body systems work together to protect the body from pathogens?Muscular and vascularCirculatory and immuneDigestive and excretoryEndocrine and reproductive60s
- Q2Leaves are part of a plant’s shoot system. The xylem tissue in leaves transports-the wax required to coat the surface of actively growing tissuethe water and minerals that are absorbed by the rootsthe bacteria needed for nitrogen fixation in root nodulesthe oxygen that regulates the rate of carbohydrate production60s
- Q3Enzymes are proteins that help increase the rate of chemical reactions inside cells. These proteins are composed of many simpler molecules called amino acids. Which of the following suggests that the shape of an enzyme determines the enzyme’s function?Enzymes are activated by neighboring molecules.Enzymes can be found in all life-forms.Enzymes are specific to a substrate.Enzymes can operate in a wide range of conditions.60s
- Q4Which of the following correctly describes how a diagram of cellular respiration would differ from a diagram of photosynthesis?The cellular-respiration diagram would show water as the main source of chemical energy.The cellular-respiration diagram would show glucose as the main source of energy.The cellular-respiration diagram would show electromagnetic waves as the final product.The cellular-respiration diagram would show energy stored in large protein molecules.60s
- Q5A dog’s pituitary gland produces the hormone ACTH, which stimulates the adrenal glands to secrete cortisol. Cortisol helps regulate body weight, mineral balance, the structure of connective tissue, the production of white blood cells, and skin health. When cortisol levels are low, the pituitary gland secretes ACTH. When cortisol levels are high, the pituitary gland stops secreting ACTH. Based on this information, which of the flowing would most likely be the cause of elevated levels of cortisol in a dog?An immune response to the excess level of cortisolAn inactive pituitary glandUndersized adrenal glandsAn excess of ACTH60s
- Q6Which of the following correctly describes an interaction that occurs between two body systems of a rabbit that helps the rabbit outrun a pursuing coyote?The skeletal system releases additional calcium, and the circulatory system retains more sodium in the blood to provide muscles with ions for contraction.The respiratory system increases the breathing rate, and the circulatory system increases blood pressure to provide tissues with more oxygen.The endocrine system releases hormones that prepare the immune system to deal with possible injuries.The digestive system increases the rate of digestion, and the excretory sytem ceases to provide tissues with more nutrients60s
- Q7Plant 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-transpirationgeotropismphototropismphotosynthesis60s
- Q8A student is studying the ecology of a playa lake, which forms after a rainfall in a dry lake bed. The table lists the organisms that the student observed. Which level of biological organization has the student described in the table?CommunityBiosphereEcosystemBiosphere120s
- Q9Copper is a micronutrient that can be found in soil. Copper is important for reproductive growth in plants and plays an indirect role in chlorophyll production. Which statement correctly describes the interaction that occurs between the root and the shoot systems of plants to allow reproduction to occur?Copper that is absorbed by the roots is transported to reproductive tissues by the shoot system.The shoot system transports copper to the roots after it is taken in through stomata in the leaves.Copper is produced in the roots when copper-containing compounds are hydrolyzed.The shoot system stores copper for later use by the roots and the reproductive structures.60s
- Q10The human digestive system is approximately 900 cm long. Food is moved through the digestive tract primarily by-muscular contractionsthe enzymes amylase and pepsinbile produced by the pancreashydrochloric acid in the stomach60s
- Q11Changes in water pressure within guard cells cause the cells to open or close the stoma. This response helps the plant maintain homeostasis by-Regulating the amount of water the plant loses during transpirationAllowing oxygen needed for photosynthesis to enter the plantEnabling the plant to release more carbon dioxide at night for photosynthesisStabilizing the plant’s temperature through the evaporation of water60s
- Q12Some students are instructed to put a celery stalk in a red dye solution for a lab activity. First the students carefully cut the bottom of the stalk with a scalpel. Then they put the stalk in a beaker with the solution and place the beaker on a shelf in the lab room. The next day they check the stalk and make observations. The students note that the leaves at the end of the stalk have changed color from green to red. The students cut across the celery stalk and use a hand lens to see that the small tube openings along the edge of the celery stalk are also red. The cross section is shown here. How do the plant systems work together to make this movement of liquid possible?The roots anchor the plant in the soil, and the stem holds the leaves up.The roots lose water vapor to the soil, and the stem loses water vapor through the leaves.The roots absorb their own water and minerals, while the stem absorbs its water and minerals through the leaves.The roots absorb water and minerals and move them up to the stem, while the stem moves food produced in the leaves down to the roots in tiny tubes.120s
- Q13The outermost layer of plant stems in dicotyledons consists of epidermal cells and guard cells that surround openings called stomata. The epidermal cells are usually covered with a waterproof layer that provides protection from injury and water loss. The stomata allow gas exchange. The epidermal cells and stomata have functions similar to those of which two human body systems?Cardiovascular and integumentarySkeletal and respiratoryIntegumentary and respiratoryCardiovascular and skeletal60s
- Q14What two human systems work together to provide body cells with a constant supply of oxygen while removing carbon dioxide waste products?Excretory and integumentaryMuscular and skeletalNervous and endocrineRespiratory and circulatory60s
- Q15Which of the following functions at the same organizational level as the kidney in the human excretory system?SkeletonUrinary bladderEpithelial tissueA squamous cell60s
