11) Heart muscle works hard and therefore consumes much ATP. Which organelles wo

Question

11) Heart muscle works hard and therefore consumes much ATP. Which organelles would you expect to be especially numerous in the heart muscle cells? A) nuclei B) mitochondria C) Golgi complexes D) lysosomes 12) A reddish chemical, lipofuscin, is found in greater quantities in cells of older people than in those from younger people. This chemical should be broken down in the cells. Which specific type of organelle is not working as well in the seniors? A) lysosome C) nucleus B) mitochondrion D) rough endoplasmic reticulum 13) The virus that causes rabies travels up nerve cells to the brain and spinal cord. Which cell structures wil allow the virus to move through the nerve cells? A) Golgi complexes B) nuclei C) microtubules D) pseudopods 14) Which of the following is not a membrane-bound organelle? A) mitochondrion C) nucleus B) cytoskeleton D) endoplasmic reticulum 15) An element with more or fewer neutrons than the same element as it appears on the periodic table is known as which of the following? B) buffer C) isotope D) isomer on 16) Dipeptidase is an enzyme found in your small intestine that helps break polypeptides down. What would its most likely products be? A) amino acids B) proteins C) triglycerides D) oligosaccharides 17) An organic compound that provides instructions for the synthesis or production of polypeptide chains is referred to as which of the following? A) nucleotide B) lipids C) ATP D) DNA 18) Which of the following is not found in ATP? A) a nitrogen-containing base C) a phosphate group B) a sugar D) All of these are found in ATP 19) These lipids have hydrophobic part and a hydrophilic part. A) triglycerides B) carotenoids C) phospholipids D) steroids 20) Saturated fatty acids are so named because they are saturated with A) hydrogen B) nitrogen C) carbon D) oxygen 21) Which of the following carbohydrates is made by plants and is not digested by humans? A) lactose B) starch C) cellulose D) glycogen 22) A molecule consists of a long chain of glucose monomers linked by covalent bonds and serves as an energy source for plants and animals.. Which of the following would describe this molecule? A) polysaccharide B) oligosaccharide C) monosaccharide Sucrose

Explanation / Answer

Since you have posted multiple questions, I am going to answer first three. I hope it helps. Thanks

1. The correct answer is option B. Mitochondria are organelles, or parts of a eukaryote cell. They are in the cytoplasm, not the nucleus. They make most of the cell's supply of adenosine triphosphate (ATP), a molecule that cells use as a source of energy. Their main job is to convert energy.

2. The correct answer is option A. A lysosome is an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane.

3. The correct answer is option C. Microtubule is a microscopic tubular structure present in numbers in the cytoplasm of cells, sometimes aggregating to form more complex structures.

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