All Categories
Uncategorized
Explore questions in the Uncategorized category that you can ask Spark.E!
- 10. Your biology teacher has created a computer game.The cell has been dropped into a hyper tonic solutionA. take up waterB. CloseC. pump out solutesD. Lose water
- 20. What kind of organic macromolecules are formed when amino acids undergo dehydration synthesis and the resulting polypeptide chains twist and fold into three-dimensional structures? A. ProteinsB. CarbohydratesC. LipidsD. Nucleic AcidsE. Sugars
- 18. the diagram above illustrates a dipeptide created through dehydration synthesis. At which bond would water need to be added to achieve hydrolysis of a peptide, back to its component amino acids?A. Bond AB. Bond BC. Bond CD. Bond D
- 16. A biologist wants to use radioactive isotope of nitrogen to radiolabel certain molecules in a culture of cells she is growing. It's a biologist uses 15N, which of the following groups of macromolecules will be labeled in the culture of cells?A. phospholipidsB. Nucleic AcidsC. ProteinsD. Nucleic Acids and proteins
- 3. Chemiosmosis describes how ATP is generated from ADP. All of the following statements conform to the process as it occurs in mitochondria EXCEPT:A. H accumulatesB. A ph gradientC. A voltage gradientD. A proton gradientE. Electrons flowing through the ATP synthase channel protein provide the energy
- 8. Your biology teacher has created a computer game.The cell has engulfed particles that need to be disposed ofA. initiate chloroplast activityB. stimulate the ER to synthesize lipidsC. increase lysosome activityD. shut down enzyme activityE. Increase cellular activity
- 15. A student using a light microscope observes a cell and correctly decides that it is a plant cell becauseA) ribosomes are visibleB) an endoplasmic reticulum can be seenC) a cell membrane is presentD) it has a large central vacuoleE) centrioles are present
- Which hormone produced by the placenta causes the mother's pubic symphysis to loosen and widen?
- identy the part of the flower that produces the pollen that contains the sperm cells.
- 2. Which of the following are found in both prokaryotic and eukaryotic cells?A. Cell membrane and chloroplastsB. DNA and ribsomesC. Cell walls and nuclear envelopeD. Flagella and endoplasmic reticulum
- 5. human white blood cells can "crawl" to damaged tissues to contact and phagocytize bacteria at the site of the damage.Which of the following facilitates this type of movementA. Addition of phospholipidsB. Rapid formation and deformationC. Beating of cillaD.Whip-like motion
- 9. Your biology teacher has created a computer game.The cell is in the S phase of interphaseA. Replicate DNAB. align chromosomesC. restD. pull sister chromatidsE. form a cleavage furrow
- 7. Your biology teacher has created a computer game.More ATP is neededA. Increase protein synthesisB. increase mitochondrial activityC. Produce more cytoskelatal elementsD. initiate cell divison
- wind, water, or animals that carry pollen from one flower to another
- top of the pistil where the pollen lands
- Where are the egg cells produced in a flower?
- The sticky top where pollen grains land is the
- male part of a flower that supports the anther
- attract pollinators with their colors or scent
- The hormone that induces labor and controls labor via a positive feedback mechanism is __________.