| State the name of the structure in a cell where protein synthesis occurs. | ribosomes |
| state the names of the structures labelled P and R in Fig 6.1 | P : rough endoplasmic reticulum/ ribosomes
R: mitochondria |
| Glycogen is a storage carbohydrate in animals. Glycogen is made from glucose.
Cells that convert glucose to glycogen contain many mitochondria.
Suggest why these cells contain many mitochondria. | conversion / process, needs energy ;
aerobic respiration occurs (in mitochondria) ;
(aerobic) respiration releases energy ; |
| Complete Table 4.1 by identifying the level of organisation of each structure.
Choose your answers from the list.
cell cell structure organ
organ system organism tissue
epithelium
nucleus
sperm
testis | tissue ;
cell structure ;
cell ;
organ ; |
| State the name of the process that assembles amino acids to form proteins | protein synthesis |
| State why xylem is a tissue. | composed of (group of) cells with similar structures ;
working together to perform shared functions ; |
| All animal cells have some common features.
State two structural features common to all animal cells. | nucleus / nucleolus / nuclear membrane ;
cell membrane ;
cytoplasm ;
ribosomes ;
mitochondria ;
endoplasmic reticulum / ER ;
vesicle / vacuole ;.
AVP ; |
| question in picture | microvilli – E ;
nucleus – A ;
mitochondrion –C ; |
| State one function of the nucleus. | stores / contains, chromosomes / genes / alleles / genetic information / DNA ;
controls the (activity / reactions of the) cell ;
controls how cells, develop / divide / reproduce / grow ;
idea that it stores instructions for, making proteins / protein synthesis / making RNA ;
AVP ; |
| State the name of one part of the mammalian body other than the kidney that has cells with microvilli. | small intestine / duodenum / ileum ; |
| question in picture | answer in picture |
| State why the palisade mesophyll is a tissue. | (group of) similar cells that, work together/ carry out a shared
(named) function; |
| Explain why a leaf is an organ. | it is (made of a group of) tissues working together to perform
specific function(s); |
| Skin is an organ.
State why the skin is an organ. | (because it is made of) a group of tissues working together to perform specific functions ; |
| A researcher used a light microscope to observe epithelial cells from a human cheek.
Fig. 1.1 is a photograph that the researcher made of these cells.
Name the parts labelled A and B. | A cytoplasm ;
B nucleus ; |
| State one of the functions of a cell membrane. | forms a barrier between the cell and its surroundings ;
keeps contents of cell inside ;
allows / controls /(movement of) substances, into/ out, of the cell/ across
membrane ; |
