Absorptive cells - Study guides, Class notes & Summaries

All organisms are composed of what? Cells Why is there an upper limit on cell size? Cells lose their ability to support themselves What does the plasma membrane divide? The fluid within a cell; intracellular fluid from extracellular fluid What is a phospholipid? Amphipathic molecules arranged in a bilayer Where do the phosphate heads face? Face water on either side of the membrane Where do the tails face and what kind of tail is it? Are in the center; hyd...

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hormone secreted molecule that travels to target cells and exerts some effect based on interaction with receptor hormone travel... 1. can be secreted in blood and travel through to reach location 2. can act locally and travel through interstitial space to neighbor cells neurotransmitters only act on target cells through a synaptic cleft neurotransmitter example molecule that can act as neurotransmitter and hormone dopamine role of endocrine system 1. homeostatic regulation of ions 2...

How do fungi use absorptive heterotrophy? Correct Answer-Fungi secrete hydrolytic enzymes into their surrounds that break down complex molecules to smaller organic compounds that the fungi can absorb into their bodies and use. Other types of fungi use enzymes to penetrate the walls of cells, enabling the fungi to absorb nutrients from the cells. What are hyphae? Correct Answer-Multicellular fungi typically form a network of tiny filaments called hyphae. Hyphae consist of tubular cell walls su...

Digestion: - is the process of transforming food into basic nutrients that can be absorbed across the wall of the GI tract; once absorbed, the nutrients can be used to fuel our cells for growth, fight infection, and provide energy to our muscles and brain to perform daily activities The GI tract is a long hollow tube that begins: - with the mouth and ends at the anus The innermost layer of the GI tract is known as the _______ or _______. This is made up of absorptive cells and glands. ...

Although fungi generally lack extensive cellular specialization, what feature of hyphal growth makes them so well suited as decomposers, mutualistic symbionts, and pathogens? correct answer: a large surface area Fungi have unique life cycles. A fungus that has two parental nuclei in one cell is referred to as a ___________. correct answer: dikaryon dikaryon correct answer: hyphae with cells having 2 different nuclei in each cell. Chytrids are thought to be the ancestral group of fung...

BOT3015 Final 2024 Exam Answers All 100% Correct | Verified & Updated In woody plants the cork cambium produces new tissues that increase the girth of the stem. When this happens the epidermis is sloughed off and replaced by the __________________ - Answer- periderm What is the function of phloem in plants - Answer- food conduction all components of phloem - Answer- sieve-tube members, companion cells What is the main function of xylem in plants - Answer- to transport water and minerals ...

BIO 202 Arizona State University -bio 202 exam 4 study guide questions with answers which of the following enzymes acts in the stomach? - correct answer lingual lipase which of the following enzymes does not digest any nutrients? - correct answer enter peptidase which of the following is NOT an enzyme? - correct answer secretin the substance in question 3 that is not an enzyme is - correct answer a hormone the lacteals absorb - correct answer chylomicrons all the following contri...

DEHYDRATION Common body fluid disturbance in infants and children Occurs whenever the total output of fluid exceeds the total intake, regardless of the cause. Also referred to as volume depletion Occur in vomiting and diarrhea Isotonic Occurs when water and sodium are lost in approximately equal amounts Plasma sodium concentration: between 130 to 150 meq/L Hypotonic Electrolyte deficit exceeds water deficit Water transfers from extracellular to the intracellular leading to swelling of the cell...