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1. What happens when plants are under iron deficiency?
2. What is meant by “active transporter?
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- 8. Which of the following ion transport functions must be carried out by a pump? a. transport of Na+ from the extracellular space to the cytosol b. transport of glucose from the extracellular space to the cytosol c. transport of K+ from the cytosol to the extracellular space d. transport of Na+ from the cytosol to the nucleus e. transport of Na+ from the cytosol to the extracellular space.1. How does the absence of transport proteins impact the process of cellular respiration ?33. Which statements concerning passive and active transport are correct? A. Both passive and active transport requires cell energy B. Passive requires cell energy while active transport does not C. Active transport requires cell energy while passive does not D. Neither passive nor active transport requires cell energy
- (2) a. Mineral salt is essential for growth of a plant. The process responsible for absorption of mineral salt is: a. Mass flow b. Diffusion Active transport C. d. Osmosis b. The reason for my answer is because : a. Absorption occurs due to concentration gradient b. Absorption occurs with the help of energy opposing to diffusion C. Movement as a bulk due to pressure changes d. Absorption through permeable membranes1.How will a plant cell that is subjected to a solute concentration that is less than that of inside the cell will react 2.What is the importance of the concentration gradient in passive transport?1. Which of these compounds will cross the cell membrane without the aid of a membrane transport protein, and why? H3 NH NH 2. By what transport process will the above compound be transported? What are the factors which drive movement across the membrane in this process? Does this process require input of energy?
- 16.What is the category of starch as non-protoplasmic content?a. enzymesb. reserve food materialc. secretory productsd. metabolic parts17. The non-protoplasmic content is described as a compound in which a sugar molecule is linked to a non-sugar molecule?a. glycosidesb.calcium oxalatec. alkaloidsd. cystoliths18. These are microscopic mineral nodules of the leaves made of amorphous calcium carbonate.a. calcium oxalateb. cystolithsc. alkaloidsd. glycosides19. which of the following occurs as minute globules in the protoplasm?a. enzymes b. fats and oilsc. pigmentsd. proteins20. this non-protoplasmic content is secreted by the chloroplasts which is responsible for photosynthesis?a. enzymesb. fats and oils c. pigmentsd. proteins4. Which one of the following requires an energy source? a. a large molecule transported with its concentrated gradient b. a large molecule transported using facilitated diffusion c. a large molecule that has to use pinocytosis d. a large molecule that chemically emulates water e. a large molecule that chemically emulates oxygen3. Heat-sensitive film, which captures the body temperature of organisms on film, is used to photograph the mammals and reptiles of a pet store during normal store hours where temperature is controlled and then during a heat wave where the electricity went out. This lizard blends into the background because its body stays about the same temperature as its surroundings. A human hand stays warm because a person produces and releases a large amount of metabolic heat. cooler ----> warmer Endotherm and ectotherm. Photo of a chameleon (an ectothermic lizard) being held by a human (an endotherm). The image was taken using heat- sensitive film. (a) ) Make a prediction for the varying body temperatures in BOTH mammals and reptiles in the pet store and justify your predictions. (b) (b) Explain the role that water plays in thermoregulation for mammals.
- 1. describe the process of cellular respiration 2. where does cellular respiration occur in the cell? 3. what is a balanced chemical reaction that depicts the process of velour respiration2. Which pathways produce NADPH?4. REDOX reactions in special organelles are like biological batteries. They involve electrons moving through a contained system, and use a build up ions on one side of a membrane to create energy. Energy carrier molecules, electron transport, ATP hydrolysis and ATP synthesis have been common terms over the past month or so. Below is an image that shows two organelles we have been focusing on, along with important membranes that can establish a proton gradient. Using the diagram, explain how chemiosmosis is established in mitochondria and chloroplasts. You must correctly name the important membrane in each organelle, and include the following words in your answer; ATP, protons/, Pi, ATP synthase, ADP, and proton-motive force. Intermembrane High H Thylakoid Lumen Space concentration Electron OLO Transport Chain | 3000 ADP. P SATP H Low H' Matrix concentration Stroma Mitochondrion Chloroplast