Flash cards on Biology B2 / additional

You might wanna cut dem up ;)

HideShow resource information
  • Created by: Temitope
  • Created on: 28-04-10 08:31
Preview of Flash cards on Biology B2 / additional

First 449 words of the document:

Cells Cells Cells
Qu. What 5 elements are in Qu. What 8 elements are in a Qu. What is the job of the
an animal cell? plant cell? Nucleus?
Ans. Cell membrane, Ans. Nucleus, cell wall, Ans. Controls all the
Cytoplasm, Nucleus, mitochondria, cell activities of the cell,
mitochondria, ribosome. membrane, ribosome, contains instructions for
chloroplast, vacuole, making new cells or
cytoplasm. organisms. It also contains
chromosomes.
Cells Cells Cells
Qu. What is the job of the Qu. What is the job of the Qu. What is the job of the
cytoplasm? cell membrane? mitochondria?
Ans. It's a liquid gel where Ans. Controls the passage of Ans. Structures in the
chemical reactions happen. 1 substances in and out of the cytoplasm, turns glucose
of the most important cell. into energy.
reactions is respiration.
These reactions are needed
for life.
Cells Cells Cells
Qu. What is the job of the Qu. What is the job of Qu. What is the job of the
Ribosome? chloroplast? vacuole?
Ans. All the proteins in the Ans. Where photosynthesis Ans. Contains sugar and
cell are made here. takes place. water. Keeps the cell firm.
Cells Osmosis and Diffusion Osmosis and Diffusion
Qu. What is the job of a cell Qu. Define Osmosis Qu. Define Diffusion
wall? Ans. The net movement of Ans. The net movement of
Ans. Made of tough water from an area of high particles of a gas or solute
cellulose fibres. It maintains concentration (of water) to an from an area of high
the shape of the plant. area of low concentration (of concentration to an area of
water) along a concentration low concentration (along a
gradient through a partially concentration gradient).
permeable membrane.
Osmosis and Diffusion Enzymes Enzymes
Qu. Define Partially Qu. Define Enzymes Qu. What are enzymes used
permeable? Ans. A protein which speeds for?
Ans. A partially permeable up a reaction (a biological Ans. Enzymes are used for
only allows water particles catalyst). breaking down substances
through its membrane but into simpler molecules.
doesn't allow other particles
through e.g. sugar.
Enzymes Enzymes Enzymes
Qu. What and where are Qu. At 0°C, what happens to Qu. At 10°C, what happens
biological catalysts? the rate of reaction in the to the rate of reaction in
Ans. Biological catalysts are human body? the body?
the enzymes in the body. Ans. The reactions are slow,
They speed up reactions and this is because enzymes need

Other pages in this set

Page 2

Preview of page 2

Here's a taster:

Ans. It is faster than it is at
unchanged. water is frozen at this 0°C, but it is still relative
temperature. slow.
Enzymes Enzymes Enzymes
Qu. At 37°C, what happens Qu. At 40 C, what happens Qu. At 50 C, what happens
to the rate of reaction in the to the rate of reaction in the to the rate of reaction in
human body? human body? the human body?
Ans. At this temperature, Ans. At this temperature the Ans.…read more

Page 3

Preview of page 3

Here's a taster:

Ans. Gall bladder Qu. Is bile and alkaline or an Qu. Out of the following 3
acid? elements, which takes the
Ans. Alkaline longest to digest?
(Carbohydrate, protein, fat)
Ans. Fat
Enzymes Enzymes Osmosis and Diffusion
Qu. Fill the gap ­ bile gives a Qu. What is the main Qu. Name two ways the
much bigger____ ____ of purpose of the small body uses diffusion.
fat for the lipase to work on. intestines? Ans. Digestion and
Ans. Surface area. Ans. To absorb digested respiration.
food.…read more

Page 4

Preview of page 4

Here's a taster:

Ans. XY Ans. XX
identical.
Inheritance and genes Inheritance and genes Inheritance and genes
Qu. What is the probability Qu. Define Homozygous. Qu. Define Heterozygous.
of offspring being male or Ans. Two of the same genes. Ans. Two different genes.
female? E.g. E.g.
Ans. Ratio = 1:1 Mother = bb Mother = Bb
Father = BB Father = Bb
Inheritance and genes Inheritance and genes Inheritance and genes
Qu. Define dominant Qu. Define Recessive. Qu. Define Allele.
Ans. The characteristic that Ans.…read more

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »