Cell: The Unit of Life Questions

Biology

Cell: The Unit of Life Solutions

Put the steps of the energy investment phase of glycolysis in order. O Dihydroxyacetone phosphate is also tumed into glyceraldehyde-3-phosphate O Phosphofructokinase further reduces our molecule, making it fructose-1,6-bisphosphate. O Isomerase converts glucose-6-phosphate to fructose-6-phosphate. O Hexokinase phosphorylates glucose using ATP, the glucose is then called glucose-6-phosphate O Dihydroxyacetone phosphate and glyceraldehyde-3-phosphate are made from fructose-1,6-bisphosphate.

Biology

Cell: The Unit of Life Solutions

When would you use a vesicle model for studying cell degeneration? a) In experiments where the cell cycle needs to be tested b) The use of vesicles is always recommended c) In experiments where the membrane integrity needs to be tested d) In experiments related to changes in the cell content

Biology

Cell: The Unit of Life Solutions

What is the term used to describe the clustering and aggregation of B-cell receptors leading to signal transduction from the receptor complex to the inside of the cell? A) germinal centering B) antigen presentation C) somatic recombination D) cross-linking

Biology

Cell: The Unit of Life Solutions

Why is part of the cell membrane hydrophobic? A) To help dissolve the organelles. B) To keep water out of the cell. C) So the cell can absorb as much water as possible.

Biology

Cell: The Unit of Life Solutions

Anster the following questions 1. What bases are found in RNA? 2. What bases are found in DNA? 3. Which strand is the messenger RNA complementary to? 4. Which strand is the messenger RNA nearly identical to? 5. What proteins help to direct the RNA Polymerase to the right location? 6. The ________ end of a new nucleotide is always added to the _______ end of an existing strand. 7. Distinguish between the following two terms: chromosome and gene.

Biology

Cell: The Unit of Life Solutions

Maurice plans to become a professional wrestler and wants to build his strength. Which is the best strategy for Maurice? A. eating food rich in protein and saturated fat to increase his muscle mass B. devising a training program that builds muscle mass slowly C. taking vitamins or a dietary supplement that is rich in protein

Biology

Cell: The Unit of Life Solutions

4. Post-transformation culture plates After transformation, the bacteria were grown in plates (plates A to D) containing IPTG, X-gal, and the antibiotic spectinomycin. PART 1: 1. What would have happened if we had cultured bacteria from any of the two starter plates in the post-transformation culture plates? 2. Why was the addition of the antibiotic spectinomycin important in the port-transformation cultures?

Biology

Cell: The Unit of Life Solutions

it more difficult to trace back through generations. ANALYZE Why might an evolutionary biologist benefit from studying mtDNA rather than nuclear DNA as evidence for evolution? a.mtDNA mutates at a slower rate, so there are fewer changes to an organism's DNA over time. Ob.mtDNA is inherited from both parents, providing a wider view of inheritance and possible common ancestry. O c.mtDNA is only passed on to females, so scientists are able to better focus their evidence on one sex. Od.mtDNA is only inherited from the mother, making it easier to trace lines of descent. on Miflan Harcourt Publishing Company Ribosomal RNA Ribosomes, which manufacture proteins in cells, contain ribosomal RNA (rRNA). When studying the relationships among slécies over longer time scales, it is best to use a 007 Molecular Evidence.pdf 3 MB VIEW lla E

Biology

Cell: The Unit of Life Solutions

Question 78 1 pts Specialized cells in an animal's pancreas produce insulin which helps to regulate blood glucose levels. What kind of cellular function is it when these pancreas cells release a substance such as insulin? a O receptor mediated endocytosis O arginocytosis O pinocytosis O exocytosis Next

Biology

Cell: The Unit of Life Solutions

Transcription begins at a site on the DNA called a promoter, located immediately before a gene or a set of genes Regarding microorganisms, which of the following statements are FALSE Gram-positive bacteria have a thick cell wall composed primarily of phospholipids and cell membrane a Cell microbes can be divided into those are prokaryotic (bacteria, archaea, plasmid, prions) and those that are eukaryotic (algae, protozoa, and fungi) E. coli growth is better on lactose than on glucose. Glucose will be used before lactose given a choice None of those

Biology

Cell: The Unit of Life Solutions

2. Draw a proposed glycoprotein involved in cell- cell recognition or signaling embedded in a cell membrane. Draw the glycoprotein with five transmembrane regions. Separately, draw only its primary structure, not embedded in the membrane, with hydrophobic and hydrophilic regions labeled.

Biology

Cell: The Unit of Life Solutions

Question P22 Not yet ar Points out P Flag que The Ferry model was developed to describe the gelation behavior of proteins. Which of the statements below is TRUE about the Ferry model (there may be more than one option). 01 SP22 01 SP22 Select one or more: a. When a native protein is heated, it first adopts a "molten globule" state. The protein can undergo reversible conformational changes between the native and molten globule states. b. When a globular protein is heated above a certain temperature, it may undergo an irreversible conformational change. c. After unfolding, the surface hydrophobicity of the proteins may increase, which causes the protein molecules to aggregate, which can lead to gelation (provided the protein concentration is high enough). 01 SP22 LO1 SP22 01 SP22 d. The Ferry model describes the gelation characteristics of gelatin (a protein derived from collagen) hbor-