Question
How does a pigment work with light to facilitate photosynthesis? a. it absorbs all wavelengths of light b. it absorbs certain wavelengths of light c. it reflects light d. it diffuses light. Why does photosynthesis not directly provide energy to cells? a. The energy captured must first be converted to proteins b. The energy captured must first be converted to nucleic acids c. The energy captured must first be converted to sugars d. The energy captured must first be converted to fats Which organelle is the site of cellular respiration? a. nucleus b. mitochondria c. chloroplast d. Golgi body What are the two main functions of cellular respiration? a. to make carbon skeletons and to make ATP b. to make ATP and sugars c. to make sugars and carbon skeletons d. to make carbon skeletons and proteins Which process converts more energy in to a form usable by the cell, aerobic respiration or anaerobic respiration? a. aerobic respiration b. anaerobic respiration The electron transport chain is driven by ______. a. passive diffusion b. osmosis c. electrolysis d. chemiosmosis In fermentation, which part of cellular respiration is used? a. glycolysis b. Krebs cycle c. electron transport chain What term describes a sequence of DNA that codes for a protein? a, chromosome b. gene c. codon d. anticodon What are the two major roles of DNA? a. unit of heredity b. blueprint for production of proteins
Explanation / Answer
28) c absorb certain wavelengths of light.
Chlorophyll absorbs mostly in the blue and to a lesser extent red portions of the electromagnetic spectrum
29)c Energy captured must first be converted to sugars
Plants store food in the form of sugars. By phtotosynthesis the energy along with water and carbon dioxide together forms glucose whichis a sugar.
30) b Mitochondria
It is a process involving break down of glucose to give break down products and energy in the form of ATP. It occurs in the mitochondria.
31)a to make carbon skeleton and ATP. Thr breakdown products are smaller carbon units and energy is given out in the form of ATP
