supplied with radioactive amino acids. Which cell component would first show an increase in radioactivity? A Golgi body B mitochondrion C nucleus D rough endoplasmic reticulum 2 Which pair of organelles has internal membranes? A chloroplasts and mitochondria B chloroplasts and nuclei C mitochondria and ribosomes D nuclei and ribosomes 3 Which combination is found in a prokaryotic cell? Endoplasmic reticulum DNA RNA Nucleus A ✓ ✓ ✗ ✗ B ✓ ✗ ✗ ✓ C ✗ ✓ ✓ ✗ D ✗ ✗ ✓ ✓ key ✓ present ✗ absent May/June
Free Bacteria Cell DNA
Referring to the above equation‚ it can be seen that light energy plays the role as the source of energy stimulating the process of photosynthesis. The main pigment that absorbs light energy is chlorophyll which is the green pigment found inside chloroplasts. A green leaf cut out into discs of the same size are used in this experiment. This experiment is carried out to discover how different intensity would affect the rate of photosynthesis. Hypothesis : As light intensity increases‚ the rate of
Premium Light Photosynthesis Carbon dioxide
Observing the Characteristics of Life In this activity‚ you’ll identify some observable characteristics (some not) of life in videos of various organisms and describe those characteristics. Review Remember that ALL living organisms are made up of CELLS! What are seven characteristics of living things? 1. Movement 2. Reproduction 3. Sensitivity 4. Growth 5. Respiration 6. Nutrients 7. Excretion If your teacher is displaying the
Premium Life Stem cell Embryonic stem cell
Transport Chain for the production of ATP and NADPH Glucose: ATP from the Light Reactions are used‚ with the addition of hydrogen ions to CO2 to make glucose. Narrator: Narrates the play Thylakoid: interconnected sacs and membranes within the chloroplast that contain enzymes
Premium Photosynthesis
The Central Dogma. This hypothesis was described by Crick in 1958. In 1953‚ Watson and Crick were the first to determine the true crystalline structure of DNA‚ using model building and then X-ray crystallography. Once the DNA structure was determined‚ the mechanisms behind inheritance‚ information flow‚ and gene function fell into place. Overall the flow of information is depicted as: DNA --> RNA --> protein. Both DNA and RNA can be replicated (i.e. DNA is synthesized from DNA‚ and RNA from RNA)
Premium DNA Gene Cell
not bound with a nucleus. In the eukaryotes‚ DNA is organized into chromosomes‚ which is surrounded by a membrane. According to Dr Lynn Margulis (2005)‚ she states that the origins of mitochondria and chloroplasts which are organelles of eukaryotic cells. This means that the mitochondria and chloroplasts were prokaryotic cells‚ which entered the eukaryotic cells and co-existed through endosymbiosis. There are many organelles inside a eukaryote cell‚ each performing dedicated functions. For example
Premium Eukaryote Cell Organelle
Lysosome | Membrane-bound organelles that contain enzymes. | | Centriole | Cylinder-shaped organelles mad of short microtubules arranged in a circle. | | Cell Wall | A rigid layer that gives protection‚ support‚ and shape to the cell. | | Chloroplast | Organelles that carry
Premium Cell Organelle Eukaryote
endosymbiotic hypothesis is that a prokaryotic cell “ate” smaller organelles which evolved into what they are today. 5. What is the evidence for the endosymbiotic hypothesis? Answer: The evidence that supports this is because mitochondrion and chloroplast both have a “brother” cell; the cells are extremely alike. The “brother” cell is a prokaryotic cell. 6. What are the comparative strengths and weaknesses of the two hypotheses? Answer: The comparative strengths and weaknesses of
Premium Organelle Eukaryote Cell
The cell is one of the most basic units of life. There are millions of different types of cells. There are cells that are organisms onto themselves‚ such as microscopic amoeba and bacteria cells. And there are cells that only function when part of a larger organism‚ such as the cells that make up your body. The cell is the smallest unit of life in our bodies. In the body‚ there are brain cells‚ skin cells‚ liver cells‚ stomach cells‚ and the list goes on. All of these cells have unique functions
Premium Cell DNA Eukaryote
The respiration and photosynthesis cycle is the process by which plants and animals interact in a codependent and symbiotic manner to produce the nutrients‚ gases‚ and energy that they require to survive. Plants obtain energy from sunlight and use it to combine carbon dioxide and water into glucose and oxygen. This process is called photosynthesis. Animals eat plants containing glucose‚ and combine glucose and oxygen‚ releasing energy‚ water‚ and carbon dioxide. This process is called respiration
Free Photosynthesis Adenosine triphosphate