Answer:
2 or 4 depending on the process
Explanation:
Answer:
the 4 different types of bases - adenine, thymine, cytosine, and guanine
adenine always pairs with thymine, and cytosine always pairs with guanine.
(dont know how they pair)
Explanation:
Answer:
a. All of these statements are true
Explanation:
The fovea is a region of the retina that’s densely packed with cones, a type of photoreceptor (a cell that detects light). The other type of photoreceptor is the rod.
While <u>rods function at low light levels</u> and allow night vision, they can’t distinguish color. In contrast, <u>cones function at high light levels and provide color vision</u>.
That's why you can't perfectly distinguish colors in a dark place.
Nucleus - regulates all cell activity, and also holds the DNA
Smooth endoplasmic reticulum - lipid and carbohydrate synthesis.
Rough er - produces and modifies proteins
Located next to the nucleus
Golgi apparatus - <span>modify, sort, and package macromolecules for cell secretion </span>
Ribosome - <span> assembles the twenty specific amino acid molecules to form the particular protein molecule</span>
Mitochondria - converts energy into compounds that are easier for the cell to use
Chloroplast -<span> captures the energy from sunlight and converts it into food that contains chemical energy in a process called photosynthesis</span>
Lysosomes - breaks down, recycles macromolecules (lipids, carbohydrates, and proteins)
Perioxisome - where hydrogen peroxide and other harmful molecules are broken down by enzymes
Plasma membrane - controls the kinds and amounts of substances moving into and out of the cell; helps maintain cytoplasmic volume and composition
Cytoskeleton - structurally supports, impacts shape and moves cell and its componants
Centrioles - two perpendicular cylinders that form mitotic spindle fibers and microtubules for cilia and flagella, helps organize cell division
Cytoplasm - holds all organelles in place
Vacuole - stores water, salts, protein, and carbohydrates
Vesicles - <span>contains substances that recently entered the cell. Stores and transports newly synthesized molecules.</span>
Cell wall - supports and protects the cell, rigid barrier
